IBM 755X (9545) Bedienungsanleitung

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This Manual Supports: ThinkPad 340x (2610) ThinkPad 355x (2619) ThinkPad 360x (2620) ThinkPad 370x (9545) ThinkPad 700x (9552) ThinkPad 701x (2630) ThinkPad 720x (9552) ThinkPad 750x (9545) ThinkPad 755x (9545) S82G-1502-03 IBM Mobile Systems Hardware Maintenance Manual Volume 2: ThinkPad Computers April 1995 We Want Your Comments! (Please see page[...]

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S82G-1502-03 IBM Mobile Systems Hardware Maintenance Manual Volume 2: ThinkPad Computers April 1995 We Want Your Comments! (Please see page 491) IBM[...]

Note Before using this information and the product it supports, be sure to read the general information under “Notices” on page 497. Fourth Edition (April 1995) The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES T[...]

About This Manual This manual contains service and reference information for IBM * ThinkPad * computer products. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively. The manual is divided into sections as follows:  The Introduction section provides general information, guidelines, and safety information [...]

Related Publications The following mobile product publications are available through IBM or your IBM Authorized Dealer. Publication Part, Form Number Mobile Systems HMM Volume 1: Laptop, Notebook, Portable, and Thinkpad Computers 30H2356, S82G-1501-01 ThinkPad 700 (9552) HMS 42G2016, S42G-2016 ThinkPad 700 (9552) HMR 42G2015, S42G-2015 ThinkPad 700[...]

Obsolete Publications This manual obsoletes the following publication: Related Diskettes The following diskettes are available through IBM or your IBM Authorized Dealer. Publication Part, Form Number Mobile Systems HMM Volume 2: ThinkPad Computers 82G1502, S82G1502 19H1080, S82G1502 Diskette Part, Form Number ThinkPad 300 (2615) Advanced Diagnostic[...]

vi IBM Mobile Systems HMM[...]

Contents Introduction . . . . . . . . . . . . . . . . . . . 1 Portable Computer Descriptions .......... 2 Drive and Diskette Compatibility Matrix ....... 4 Important Service Information ........... 5 Safety Notices (Multi-lingual Translations) ..... 7 Safety Information . . . . . . . . . . . . . . . . 14 Laser Compliance Statement ........... 1 9 S[...]

Symptom-to-FRU Index . . . . . . . . . . . . . 331 Related Service Procedures ........... 3 4 4 Product Overview . . . . . . . . . . . . . . . . 349 FRU Removals and Replacements ........ 3 5 0 Locations . . . . . . . . . . . . . . . . . . . . 381 Parts Listing . . . . . . . . . . . . . . . . . . 383 ThinkPad 755CE, 755CSE, 755CV, 755CX (9545) 391 [...]

Introduction Portable Computer Descriptions .......... 2 Drive and Diskette Compatibility Matrix ....... 4 Important Service Information ........... 5 How to Use Error Messages .......... 6 How to Read POST Error Messages ...... 6 Safety Notices (Multi-lingual Translations) ..... 7 Safety Information . . . . . . . . . . . . . . . . 14 General Safet[...]

Portable Computer Descriptions All models in the following table have VGA video. Models N51, CL57, and P70/75 and Thinkpads 700x and 720x are Micro Channel * systems. All others are AT * bus systems. Model Type Processor Memory Hrd Dsk Model L40SX 8543-044 386SX-20 2M/18M 60M Model N45 SL 2614-065 386SL-25 2M/8M 80M 2614-067 386SL-25 2M/8M 120M Mod[...]

Model Type Processor Memory Hrd Dsk ThinkPad 701C 2630 486DX2-25/50 4M/32M 360MB 2630 486DX2-25/50 4M/32M 540MB 2630 486DX4-25/75 8M/32M 360MB 2630 486DX4-25/75 8M/32M 540MB ThinkPad 701Cs 2630 486DX2-25/50 4M/32M 360MB 2630 486DX2-25/50 4M/32M 540MB 2630 486DX4-25/75 8M/32M 360MB 2630 486DX4-25/75 8M/32M 540MB ThinkPad 710T 2523-09Y 486SLC2-25 4M/[...]

Drive and Diskette Compatibility Matrix The following table provides identification information for 3.5-inch drives. Diskette Drive Identifying Mark 3.5-Inch - 1.44MB 1.44 on the eject button 3.5-Inch - 2.88MB 2.88 on the eject button The following table provides compatibility information for 3.5-inch diskettes and 3.5-inch diskette drives. The fol[...]

Important Service Information Important Diskette fixes are customer installable. The diskette fixes are located on the PC Company Bulletin Board Service (BBS). The direct phone line for modem connection is 919-557-0001 or tieline 255-0001. Advise customers to contact the PC Company HelpCenter at 800-772-2227 if they need assistance in obtaining or [...]

The advanced diagnostic tests are intended to test only IBM products. Non-IBM products or modified options can give false errors and invalid responses. Hard Disk Drive Replacement Strategy: Always try to run a low-level format before replacing a hard disk drive. Warning: The drive startup sequence in the computer you are servicing might have been c[...]

Safety Notices (Multi-lingual Translations) In this manual, safety notices appear in English with a page number reference to the appropriate multi-lingual, translated safety notice found in this section. The following safety notices are provided in English, French, German, Italian, and Spanish languages. Safety Notice 1 Before the computer is power[...]

Safety Notice 2 Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble it, recharge it, throw it into fire or water, or short-circuit it. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or[...]

Safety Notice 3 The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. Use of an incorrect battery can result in ignit[...]

Safety Notice 4 The lithium battery can cause a fire, explosion, or severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts [...]

Safety Notice 5 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes. Seek medical care if any symptoms from the fluid are present after washing. Si le panneau d'affichage à cristaux liquides se brise et que vous recevez dans les yeux o[...]

Safety Notice 6 To avoid shock, do not remove the plastic cover that surrounds the lower portion of the inverter card. Afin d'éviter tout risque de choc électrique, ne retirez pas le cache en plastique protégeant la partie inférieure de la carte d'alimentation. Aus Sicherheitsgründen die Kunststoffabdeckung, die den unteren Teil der [...]

Safety Notice 8 Before removing any FRU, power-off the computer, unplug all power cords from electrical outlets, remove the battery pack, then disconnect any interconnecting cables. Avant de retirer une unité remplaçable en clientèle, mettez le système hors tension, débranchez tous les cordons d'alimentation des socles de prise de courant[...]

Safety Information The following section contains the safety information that you need to be familiar with before servicing an IBM mobile computer. General Safety Follow these rules to ensure general safety:  Observe good housekeeping in the area of the machines during and after maintenance.  When lifting any heavy object: 1. Ensure you can s[...]

Electrical Safety Observe the following rules when working on electrical equipment. Important Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have, near their equipment, rubber floor mats that contain small con[...]

 Regularly inspect and maintain your electrical hand tools for safe operational condition.  Do not use worn or broken tools and testers.  Never assume that power has been disconnected from a circuit. First, check that it has been powered-off.  Always look carefully for possible hazards in your work area. Examples of these hazards are mo[...]

The guide consists of a series of steps presented in a checklist. Begin the checks with the power off, and the power cord disconnected. Checklist: 1. Check exterior covers for damage (loose, broken, or sharp edges). 2. Power-off the computer. Disconnect the power cord. 3. Check the power cord for: a. A third-wire ground connector in good condition.[...]

Handling Electrostatic Discharge-Sensitive Devices Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the wo[...]

Laser Compliance Statement The CD-ROM drive in the ThinkPad computer is a laser product. The CD-ROM drive's classification label (shown below) is located on the drive. CLASS 1 LASER PRODUCT LASER KLASSE 1 LUOKAN 1 LASERLAITE APPAREIL A LASER DE CLASSE 1 KLASSE 1 LASER APPARAT The CD-ROM drive is certified in the U.S. to conform to the requirem[...]

Screw Size Chart Use the chart below to match the size and shape of the screws used in the computer you are servicing. A H C K E D L F N B J G M P Q Silver Black Silver Brass Black Black Black Brass Silver Brass Silver Silver Silver Black Brass 20 IBM Mobile Systems HMM[...]

Screw Size Chart (continued): Use the chart below to match the size and shape of the screws used in the computer you are servicing. R Y T V U W S X Brass Black Brass Black Black Black Brass Brass AA BB DD Z CC EE FF Silver Black Black Black Brass Brass Brass Introduction 2 1[...]

Screw Size Chart (continued): Use the chart below to match the size and shape of the screws used in the computer you are servicing. GG QQ JJ SS KK TT MM WW HH RR LL UU NN XX PP Silver Silver Silver Silver Black Black Black Black Brass Brass Brass Brass Brass Brass Brass 22 IBM Mobile Systems HMM[...]

ThinkPad 340x (IBM 2610) General Checkout . . . . . . . . . . . . . . . . . 25 Memory Checkout . . . . . . . . . . . . . . . 26 System Board . . . . . . . . . . . . . . . . . 27 Keyboard/Auxiliary Input Device Checkout .... 2 7 TrackPoint II and III Checkout ......... 2 8 Diskette Drive Test .............. 2 8 Power Systems Checkout ........... 2 9[...]

Indicator Card . . . . . . . . . . . . . . . . . 61 Parts Listing . . . . . . . . . . . . . . . . . . . 62 Option Parts List ................ 6 5 24 IBM Mobile Systems HMM[...]

General Checkout Use the following procedure as a guide for computer problems. The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses. 1. Obtain the failing symptoms in as much detail as possible. 2. Verify the symptom. Attempt to recreat[...]

Memory Checkout See the following table for the available memory size of each card. Memory errors might stop system operations, show error messages on the screen, or hang the system. Use the following procedure to isolate memory problems. Note: Make sure that the memory card is fully installed into the connector. Loose connections can cause errors.[...]

System Board The processing functions for the computer are performed by the system board. When a numeric code calls out the system board, use the following procedure to isolate the problem. 1. Run the system board test to verify the symptom. This test verifies the system board. If no error is detected, return to “General Checkout” on page 25. 2[...]

If any of the above devices do not work, reseat the cable connector and repeat the failing operation. If the problem does not occur again, recheck the connector. If the problem is not corrected, replace the device, and then the system board. TrackPoint II and III Checkout If the TrackPoint II or III will not work, check the configuration in Easy-Se[...]

space key. A √ mark appears next to the selected icon. Insert the blank diskette when instructed. 2. Run the diskette drive test. 3. If the controller test detects an error, FRU code 10 appears. Replace the system board. 4. If the controller test runs without errors, the drive read/write tests start automatically. 5. If the drive test detects an [...]

AC Adapter (30W, 40W): 1 2 AC Adapter (35W): 1 2  If the voltage is correct, replace the system board. If the problem is not corrected, go to “Undetermined Problems” on page 42.  If the voltage is not correct, go to the next step. 2. Unplug the AC Adapter cable from the ac power outlet and wait five minutes or longer to allow the protecti[...]

1 3 4 () () () 3. If the voltage is less than + 10.0 V dc, the battery pack has been discharged or is defective. Recharge the battery. If the recharging does not work, go to Step 5 to check the charging circuit. If the voltage is still less than + 10.0 V dc after the recharging, replace the battery. 4. If the voltage is more than + 8.0 V dc, measur[...]

Red Black  If the voltage is correct, replace the system board.  If the voltage is not correct, the backup battery has been discharged. Replace the backup battery.  If the backup battery discharges quickly after replacement, replace the system board. Checking the Standby Battery: Be careful not to cause a short circuit when measuring the v[...]

Red Black  If the voltage is less than + 4.0 V dc, replace the system board.  If the voltage is more than + 4.0 V dc, power-off the computer, replace the standby battery, and go to the next step. 6. Ensure that the AC Adapter is plugged into the computer; then power-on the computer. 7. Charging of the standby battery starts. A depleted batter[...]

Suspend Mode: When in suspend mode, the following occurs:  The LCD power is powered-off.  The hard disk is powered-off.  The CPU is stopped. Notes: 1. In the ThinkPad Features Program, the computer can be set to “Will not suspend even if LCD is closed.” 2. When the computer is powered with ac power and is used with one of the following[...]

Numeric Error Codes Symptom/Error FRU/Action 10X 1 . System Board 110 1. Go to “Memory Checkout” on page 26. 2. IC DRAM Card 3. System Board 111 1. Go to “Memory Checkout” on page 26. 2. System Board 161 1. Go to “Checking the Backup Battery” on page 31. 2. Backup Battery 3. System Board 163 (Time and Date was not set.) 1. Set Time and [...]

Symptom/Error FRU/Action 301, 303, 304, 305, 3XX 1 . Go to “Keyboard/Auxiliary Input Device Checkout” on page 27. 2. Keyboard 3. External Numeric Keypad 4. External Keyboard 5. Keyboard/Mouse Cable 6. System Board 601, 6XX 1. Go to “Diskette Drive Test” on page 28. 2. Diskette Drive Assembly 3. Diskette 4. System Board 602 (Diskette read er[...]

Symptom/Error FRU/Action I9990301 I9990302 I9990305 1. Reseat the boot device. 2. Check the startup sequence for the correct boot device. 3. Check that the operating system has no failures, and is installed correctly. I9990303 1 . System Board Other codes not listed above 1. Go to “Undetermined Problems” on page 42. FRU Codes If an error is det[...]

Beep Symptoms Symptom/Error FRU/Action Continuous beeps. 1 . System Board One beep and a blank, unreadable, or flashing LCD. 1. Reseat the LCD connector . (See “1090 LCD Assembly” on page 55.) 2. LCD Assembly 3. System Board One beep, and the message “Unable to access boot source.” 1. Reseat the boot device. 2. Boot Device 3. System Board O[...]

Symptom/Error FRU/Action No beep during POST, but system runs correctly. 1. Turn the volume up and listen to the speaker . 2. Speaker LCD Related Symptoms LCD FRU Replacement Notice: If missing or discolored dots appear on the LCD, carefully read the following note to determine whether you should replace the LCD.  Do not replace the LCD for defe[...]

Keyboard/TrackPoint II or III Related Symptoms Symptom/Error FRU/Action Keyboard (one or more keys) does not work, or works intermittently. 1. Reseat the three keyboard cables. 2. Reseat the keytop. Ensure the rubber dome under the keytop is straight and in the correct direction, with the larger radius on the top. 3. Keyboard 4. System Board TrackP[...]

Function/Audio Related Symptoms Symptom/Error FRU/Action The system will not suspend or resume by opening or closing the keyboard. 1. Go to “Suspend Mode” on page 34 and check that the computer can enter suspend mode. 2. Go to the Easy-Setup screen and press Fn + 4. If the computer enters suspend mode, suspect that the application program is de[...]

Peripheral Device Related Symptoms Symptom/Error FRU/Action External display does not work correctly. 1. See “External Display Self-Test” in the “Common Devices Checkout” section. Printer problems. 1. Run Printer Self-test . 2. System Board 3. Parallel Port Device 4. Cable Serial or parallel port device problems. 1 . Device 2. Device Cable [...]

2. Check the cables, wires, and connectors for short circuits and open circuits. Visually check them for damage. If any problems are found, replace the FRU. 3. Remove or disconnect all of the following devices. a. Non-IBM devices b. Devices attached to the expansion bus connector c. Printer, mouse, and other external devices d. Battery pack e. IC D[...]

Status Indicators The system status indicators show the current computer status in different colors (green, yellow, and orange). Symbol Color Meaning Green Battery is fully charged. Yellow (340) Battery usable. Battery is charging (when the AC Adapter is used). Note: When the battery is fully charged, the indicator turns and stays green. Orange Bat[...]

Symbol Color Meaning Green Computer is powered on How to Run the Diagnostics Use either the TrackPoint II or III or the cursor move keys to interact with the tests. The Enter key works the same as selecting the OK icon to reply OK. 1. Press and hold the F1 key; then power-on the computer. Hold the F1 key down until the Easy-setup screen appears. 2.[...]

Reset Pushbutton The reset pushbutton resets the system and forces the power to be powered-off . Note: Use this pushbutton when the power is not completely off or the system is hung. See “System Board” on page 61 for the location of the pushbutton. Checking the Installed Devices List If a device is installed but the icon appears in a gray shade[...]

Fn Key Combinations The following table shows the Fn key and function key combinations and their corresponding functions. The Fn key works independently from the operating system. The operating system obtains the status through the system management interface to control the system. Fn + Description F1 Reserved F2 Fuel-gauge display ON/OFF F3 Standb[...]

Product Overview The following table shows an overview of the system features. Feature Description Processor  340 – IBM486 SLC 25/50MHz, on the system board  340CSE – IBM486 SLC2 25/50MHz, on the system board – IBM486 SLC2 33/66MHz, on the system board Memory (Standard) 4MB (on the system board) Memory (Option) 2MB, 4MB, 8MB, IC DRAM ca[...]

FRU Removals and Replacements This section contains information about removals and replacements.  An electrostatic discharge (ESD) strap must be used to establish personal grounding. The system board is sensitive to, and can be damaged by, electrostatic discharge. Establish personal grounding by touching a ground point with one hand before touch[...]

1010 Rear Connector Door Remove the rear connector door by flexing it. 1 1 1020 Battery Pack 1 1 2 2 50 IBM Mobile Systems HMM[...]

1030 Backup Battery 1040 IC DRAM Card 1050 Standby Battery  Battery Pack (1020) Step 2: Standby Battery Step 3: IC DRAM Card Step 4: Backup Battery Note The IC DRAM card is sensitive to physical shock. Incorrect handling of the card can damage it. Note: When removing the backup battery or standby battery, use the connector extractor (P/N 39G9977[...]

1060 Top Cover  Battery Pack (1020) 1 1 2 2 3 3 4 4 Step Location (Quantity) Length .1/ Base cover (3) 12 mm Note: Make sure you use the correct screw. 52 IBM Mobile Systems HMM[...]

1070 Indicator Card  Battery Pack (1020)  Top Cover (1060) 1 1 When Replacing Be careful to not break the pins of the indicator card connector. ThinkPad 340x (IBM 2610) 53[...]

1080 Keyboard Unit  Battery Pack (1020)  Top Cover (1060) Notes: 1. There are two keyboard latches on each side of the computer frame. Slide the keyboard as shown in step 2 to release the keyboard from those latches; them remove the keyboard. (Small arrows on the both sides of the keyboard show the locations of the latches.) 2. The keyboard h[...]

1090 LCD Assembly  Battery Pack (1020)  Top Cover (1060) Safety Notice 5: Translation on page 11 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes. Seek medical care if any symptoms from the fluid are present after washing. Caring fo[...]

3 3 3 3 4 4 Use the following table for reference when replacing parts. Step Location (Quantity) Length .1/ LCD cable (1) 6 mm .3/ LCD hinge (4) 8 mm Note: Make sure you use the correct screw. 56 IBM Mobile Systems HMM[...]

1100 Diskette Drive 1110 Hard Disk Drive  Battery Pack (1020)  Top Cover (1060)  Keyboard Unit (1080) Steps 1, 2, 3, 4: Diskette Drive Steps 5, 6: Hard Disk Drive When Replacing  Before removing the hard disk drive, have the user make a backup copy of all information on the hard disk  Never remove the hard disk drive while the system[...]

1120 System Board/Speaker  Rear Connector Door (1010)  Battery Pack (1020)  Backup Battery (1030)  IC DRAM Card (1040)  Standby Battery (1050)  Top Cover (1060)  Indicator Card (1070)  Keyboard Unit (1080)  Diskette Drive (1100)  Hard Disk Drive (1110) Step 1, 2, 3, 4: System Board Step 4, 5: Speaker 1 1 2 2 3 3 4 4 5 [...]

Locations System (Front View) .1/ LCD .2/ Contrast Control .3/ Brightness Control .4/ Status Indicator .5/ Keyboard .6/ LCD and Keyboard Latch .7/ Click Button .8/ Diskette-Eject Button .9/ Diskette Drive .1ð/ Fn Key .11/ TrackPoint II/III 1 2 3 4 5 10 11 9 7 8 6 ThinkPad 340x (IBM 2610) 59[...]

System (Rear View) .1/ External Display Connector .2/ Serial Connector .3/ PCMCIA Slot .4/ Serial Connector .5/ Reset Pushbutton .6/ Power Jack .7/ External Input Device connector 1 5 6 7 2 3 4 System (Interior View) .1/ Backup Battery .2/ IC DRAM Card Slot .3/ Standby Battery .4/ Battery Pack 1 4 3 2 60 IBM Mobile Systems HMM[...]

System Board .1/ Internal Modem Card connector (Modem model only) .2/ External Display Connector .3/ Parallel Connector .4/ LCD connectors .5/ PCMCIA Slot .6/ Indicator Card Connector .7/ Reset Pushbutton .8/ LCD Inverter Power Connector (340CSE) .9/ Serial Connector .1ð/ Power Jack .11/ External Input Device Connector .12/ Keyboard Signal Connect[...]

Parts Listing 1 2 3 4 5 6 7 8 10 9 12 11 13 14 17 16 15 62 IBM Mobile Systems HMM[...]

System Unit Models 340 and 340CSE Index 1 LCD Assembly (340) 84G6678 1 LCD Assembly (340CSE) 9.4-inch 85G7601 10.4-inch 85G7602 2 Top Cover (340) 84G6677 2 Top Cover (340CSE) 85G7600 3 Keyboard Assembly (See keyboard list) 4 Modem/Fax Card (2400 bps.) 84G5917 5 Indicator Card 84G6662 6 System Board (340) 84G6661 6 System Board (25/50MHz) With modem[...]

DASD Keyboards Index 15 Diskette Drive (2-mode) 84G6664 Diskette Drive (3-mode) 84G6665 16 Speaker (360CSE) 85G7643 17 TrackPoint II Cap 66G6444 17 TrackPoint III Cap 84G6536 Shield Plate (340) 84G6774 AC Adapter 84G6679 For Japan 84G6738 AC Adapter (small, 35W) 85G4952 For Japan 85G6669 DC Plug 85G6664 IC DRAM Card (See options) Arabic 84G6881 Bel[...]

Option Parts List Notes: 1. When you replace the AC Adapter with a new one, use the one for the country you are in even if the system is from a different country. 2. The warranty for the system unit does not apply to all options. Numeric Keypad Tools Basic IC DRAM CARD (no parity) 8MB 84G5725 Basic IC DRAM CARD (no parity) 4MB 84G5724 Basic IC DRAM[...]

1 2 3 4 5 6 7 8 9 10 Warning: Use only the power cord certified for your country. 30/40W 35W 1 Colombia, U.S., Venezuela 13F9959 25H2207 Japan, 2-pin 6454377 85G6665 Japan, 3-pin 65F0031 2 Hong Kong, Singapore, U.K. 14F0033 25H2215 3 France, Germany, Spain 13F9979 25H2209 4 Italy 14F0069 25H2223 5 Australia, New Zealand 13F9940 25H2205 6 Denmark 13[...]

ThinkPad 700, 700C, 720, 720C (9552) General Checkout . . . . . . . . . . . . . . . . . 68 Memory Checkout . . . . . . . . . . . . . . . 70 Power Systems Checkout ........... 7 1 Power Management Features ......... 8 1 Symptom-to-FRU Index . . . . . . . . . . . . . . 82 Numeric Error Codes .............. 8 2 Beep Symptoms . . . . . . . . . . . . . [...]

General Checkout The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype card, or modified options can give false errors and invalid system responses. Warning: The drives might have been rearranged or the drive startup sequence might have been altered. Be extremely careful during write operations such as copying, sa[...]

Note For information about how to run diagnostics, error messages, passwords, and various other tests and service checks, go to “Related Service Procedures” on page 94. Symptom Go to ... Error Code or Message “Symptom-to-FRU Index” on page 82 Configuration Problem “Checking the Installed Devices List” on page 97 Power Problem “Power S[...]

Memory Checkout Customer diagnostics can eliminate defective memory so no memory error message appears at power-on reset. After you replace a defective base memory card or IC DRAM card, run Automatic configuration. Otherwise, the new memory will not be recognized. Power-off the computer before you remove or replace any parts. 001 – Remove all IC [...]

007 (continued) – Run the memory test. Use the RUN TESTS ONE TIME option. DID THE MEMORY TESTS END WITHOUT AN ERROR? Yes No 008 Replace the IC DRAM card in slot 2. If the problem is not corrected, replace the system board. 009 If the problem occurs intermittently, run the memory tests multiple times to create an error log. Power Systems Checkout [...]

Checking the AC Adapter: If the Power-On indicator does not turn-on, check the power cord of the AC adapter for correct continuity and installation. 1. If any noise can be heard from the AC adapter when it is plugged into the ac power outlet, replace the AC adapter. If no noise can be heard from the AC adapter, go to step 3. 2. If a noise is still [...]

Checking the Car Battery Adapter (700 only): If the output voltage from the cigarette lighter socket of the car is less than 10.5 V dc, the power-on indicator on the car battery adapter blinks and a noise can be heard continuously. 1. Unplug the car battery adapter cable from the connector, if connected. 2. Plug the car battery adapter into the cig[...]

Checking the Battery Pack 1. Carefully place the computer bottom-side up. 2. Remove the battery pack and measure the voltage between the battery terminals 1 ( + ) and 3 ( − ). See the following figure. 1 2 3 ( ) ( ) ( )  If the voltage is less than + 10.0 V dc, the battery pack has been discharged or is defective.  If the voltage is more th[...]

Checking the Backup Battery 1. Carefully place the computer bottom-side up. 2. Remove the bottom cover. 3. Disconnect the battery connector from the system board. 4. Measure the voltage of the backup battery. See the following figure. (Black ) (Red)  If the voltage is correct, replace the system board.  If the voltage is not correct, the back[...]

1 2  If the voltage is less than + 4 V dc, replace the voltage converter.  If the voltage is more than + 4 V dc, go to the next step. 7. Power-off the computer and unplug the AC adapter cable from the computer. 8. Reconnect the standby battery to the voltage converter. 9. Plug the AC adapter cable into the computer and power-on the computer. [...]

 If the problem is not corrected, replace the quick charger or the power cord. 3. Install the battery pack into the quick charger.  If the charging indicator does not start blinking, replace the quick charger. Checking the Voltage Converter (700, 700C): Use the following procedure to isolate a problem with the ThinkPad 700, 700C voltage conve[...]

PWRGOOD VC VB VG V A GND Passwo rd-Ove rride Connec ter Note: Only VOLT is marked on the system board. Use the above figure to locate the VA, VG, VB, VC, and PWRGOOD signal names.  If all voltages are correct, the voltage converter is operating correctly.  If the voltages are not correct, go to the next step. 8. Power-off the computer and unp[...]

6. Open the LCD half-way, then stand the computer on its front edges so that the suspend switch is not activated. 7. Power-on the computer. 8. Check the voltages of the voltage converter on the system board. See the following figure. Notes: a. Make sure the suspend switch (located to the left above the keyboard) is not activated during measurement [...]

 If there is a short circuit (less than 10 ohms), remove the FRUs indicated one at a time until the short circuit disappears. Replace the FRU causing the short circuit. 11. If there is no short circuit, replace the following FRUs one at a time.  Voltage converter  System board FRU VA VG VB VA3 VB3 Voltage converter x x x x Processor card x[...]

Power Management Features The suspend and resume functions are unique methods used to save battery power. In suspend mode, all tasks are suspended and their present states are stored in memory to save power. Also, the system enters a sleep state where only a minimum amount of power is used. When the computer returns to normal operation using the re[...]

Symptom-to-FRU Index The Symptom-to-FRU Index lists error symptoms and possible causes. The most likely cause is listed first. Always begin with “General Checkout” on page 68. This index also can be used to help you decide which FRUs to have available when servicing a computer. If you cannot correct the problem using this index, go to “Undete[...]

Symptom/Error FRU/Action 000 118 XX 1. Clear Error Log. See “System Error Log” on page 96. 2. If the error remains, replace the FRUs in the following order:  Base Memory Card  IC DRAM Card Note: Error Log must be cleared when a FRU is replaced. 000 161 00 1. See “Checking the Backup Battery” on page 75. 2. System Board 3. Voltage Conv[...]

Symptom/Error FRU/Action 000 187 XX 1 . Set Configuration 2. System Board 000 188 XX 1 . System Board 000 189 XX 1. Select More utilities to clear the system error log. 000 190 00 1. Reseat System Board 2. Reseat CPU chip / Processor Card 3. System Board 000 191 02 1 . Rerun diagnostics tests. 2. If error remains, see 000 191 XX. 000 191 XX (Not li[...]

Symptom/Error FRU/Action 000 2XX XX (See “Memory Checkout” on page 70 before replacing any FRUs.) 1. Base Memory Card 2. IC DRAM Card 3. System Board 000 301 00, 000 305 00 (Power-on the computer before external devices.) (See “1080 Keyboard Unit” on page 54 before replacing any FRUs.) 1 . Keyboard Control Card 2. System Board 3. Keyboard 4[...]

Symptom/Error FRU/Action 00 14XX XX 1 . See “Printer Checkout” on page 474 before replacing any FRUs. 2. Printer 3. System Board 00 1801 00, 00 1861 00 Replace the line QEMM386.SYS with QEMM386.SYS XBDA:L in Config.sys. 00 24XX 00 1 . Video Card 2. System Board 3. Voltage Converter (700C, 720C only) 00 39G 900 1 . System Board 00 5002 XX, 00 50[...]

Symptom/Error FRU/Action 00 8611 00, 00 8612 00 00 8613 00 See “1080 Keyboard Unit” on page 54 before replacing any FRUs. 1 . Keyboard Control Card 2. Keyboard (Pointing Stick) 3. System Board 4. Ext. Keyboard Cable 00 861X XX (not listed above) See “1080 Keyboard Unit” on page 54 before replacing any FRUs. 1 . Keyboard (Pointing Stick) 2. [...]

Symptom/Error FRU/Action 0 137XX XX 1 . Serial Adapter 2. System Board 3. Video Card 4. Any Serial Device 5. Communication Cable 0 194 XXXX 1. Do not replace any FRUs. The installed Memory Expansion Adapter is not supported by IBM. I 99903XX , I 99900XX I 99800XX 1. Reseat the hard disk drive to ensure good connection. 2. See “Set Startup Sequenc[...]

Symptom/Error FRU/Action Two long beeps and two short beeps (or two long beeps and no short beeps). (Possibly with a blank screen and blinking speaker icon.) 1 . Video Card 2. Incorrect system board (700, 700C) 3. Incorrect processor upgrade (700, 700C) 4. Incorrect 240MB hard disk drive upgrade for this model Miscellaneous Symptoms Symptom/Error F[...]

Symptom/Error FRU/Action LCD screen unreadable or characters missing pels. 1. See important note for “LCD FRU Replacement Notice” on page 124. 2. LCD Assembly 3. System Board LCD too dark, unable to adjust contrast or brightness. 1 . LCD 2. Video Card LCD slightly dims when changing to battery power. 1 . Normal operation (Dimming of LCD conserv[...]

Symptom/Error FRU/Action Mouse and Pointing Stick problems. 1 . See “1080 Keyboard Unit” on page 54 before replacing any FRUs. 2. Disable Trackpoint and test Mouse again. The Trackpoint can interfere with the operation of some Mouse devices. 3. Mouse 4. Keyboard Control Card 5. Keyboard Cursor floats or moves erratically. 1. See “TrackPoint I[...]

Symptom/Error FRU/Action Real-time clock inaccurate. 1. See “Checking the Backup Battery” on page 75 before replacing any FRUs. 2. Backup Battery 3. System Board Printer problems. 1 . See “Printer Checkout” on page 474 Serial or serial port device problems. 1 . Device 2. Cable 3. Serial Adapter (if attached) 4. System Board Parallel or para[...]

Undetermined Problem You are here because the diagnostic tests did not identify which adapter or device failed, the Devices List is incorrect or the system is inoperative. Follow the procedures below (do not isolate FRUs that are known to be good). Check the power supply that was being used at the time of the failure. (See “Power Systems Checkout[...]

Related Service Procedures This section provides information on the following: “System Status Indicators” “Check Point (CP) Codes” on page 96 “System Error Log” on page 96 “Checking the Installed Devices List” on page 97 “Power-On Password (700, 700C)” on page 97 “Power-On Password (720, 720C)” on page 97 “Privileged-Acces[...]

Symbol State Status Indicated + Green Battery pack is fully-charged. Yellow Battery pack is half-charged. Orange Battery pack is one-fourth charged. Blinking Orange Battery pack is almost discharged (replace with fully charged spare). Off  Battery pack is completely discharged.  Battery pack is removed from computer.  Computer is off.  [...]

Symbol State Status Indicated On Computer is powered-on (blinking indicates temperature too high - system enters suspend mode until temperature returns to normal). Check Point (CP) Codes Codes beginning with “CP” are displayed on the LCD to indicate system status during POST. The CP codes vary with the level of microcode installed and the type [...]

instructions on the screen to help you determine which FRU might be causing the failure. Checking the Installed Devices List The Installed Devices List shows the adapters and devices installed in the computer. If an adapter or a device is missing from the list, one of the following conditions might be the cause. Warning: A customized setup configur[...]

Set Startup Sequence 1. Power-off the computer. 2. Insert the backup copy of the Reference Diskette into the diskette drive. 3. Power-on the computer. 4. Select Set features from the Main Menu. 5. Select Set startup sequence. If you cannot set the startup sequence, replace the system board. 6. Check the list of devices on the Set startup sequence s[...]

Hard Disk Low Level Format To format the hard disk and restore the system partition, do the following. Warning: The following procedure causes permanent loss of the data on the hard disk. Make sure that a backup of all the information on the hard disk is made. 1. Power-off the computer. 2. Insert the backup copy of the Reference Diskette into the d[...]

System Diskettes (Reference and Diagnostic) If the hard disk drive is not operational, you can run the system programs from the Reference Diskette. Note: The Reference Diskette contains the system programs and the Diagnostic Diskette contains the test programs. The Diagnostic Diskette is not self-starting. To run the Diagnostic Diskette, start the [...]

not have a backup copy of the current system partition, but you have the option diskettes, go to step 8 on page 101. 7. Select Copy an option diskette from the Main Menu. When the INSERT YOUR OPTION DISKETTE message appears, insert the backup copy of the system partition and follow the instructions on the screen. (The backup copy of the system part[...]

5. When the copies are completed, label each diskette. Japanese Model Diskette Drive and Diskette The ThinkPad 700 uses a 1.44MB diskette drive. Both 1.0MB (formatted 720KB) and 2.0MB (formatted 1.44MB) capacity diskettes can be used in this drive. The ThinkPad 700 Japanese model uses a diskette drive that supports 1.2MB format on 2.0MB capacity di[...]

Feature Description Processor (720, 720C) 486SLC 25/50-MHz Bus Architecture Micro Channel Memory (Standard) 4MB Memory (Maximum) 16MB, IC DRAM CMOS RAM 8KB Video VGA Diskette Drive 3.5-inch Hard Drive  80MB, 2.5-inch  120MB, 2.5-inch  160MB, 2.5-inch Audio Subsystem Yes (Standard) PCMCIA (720, 720C only) One Type-III or Two Type-II ThinkPa[...]

FRU Removals and Replacements Follow the numerical sequence in the FRU removal sequence list and in the exploded view to remove or disconnect parts in the correct order. The letters in parentheses in the list indicate screw types. See the “Screw Size Chart” on page 20 to match the letters to the correct screw type and size before replacing each[...]

mode. Restore drive system information using the customer's backup copy of the system programs.) .16/ Three Keyboard Frame Screws (S) .17/ Two Screws (T) .18/ System Board (Restore system configuration data.) .19/ Five Frame Stiffener Screws (S) .2ð/ Frame Stiffener .21/ Four Keyboard Screws (S) .22/ Keyboard .23/ One Screw (S) and Keyboard C[...]

ThinkPad 700 Exploded View 106 IBM Mobile Systems HMM[...]

ThinkPad 700 Exploded View (continued) ThinkPad 700, 700C, 720, 720C (9552) 107[...]

ThinkPad 720, 720C Exploded View 108 IBM Mobile Systems HMM[...]

ThinkPad 720, 720C Exploded View (continued) ThinkPad 700, 700C, 720, 720C (9552) 109[...]

Locations Front View .1/ Release Lever .2/ LCD .3/ Contrast Control .4/ Brightness Control .5/ System Status Indicator .6/ Power-On Light (green) .7/ External Input Device Connector .8/ System Power Switch .9/ Keyboard .1ð/ Reverse Video Switch .11/ Hard Disk Drive .12/ Integrated Pointing Stick .13/ Battery Pack .14/ Diskette-Eject Button .15/ Di[...]

System Board (700) .1/ External Input Device Connector .2/ System-Expansion Connector (240-pin) .3/ Parallel Connector .4/ Serial Connector .5/ Diskette Drive Connector .6/ Password-override connector .7/ Base Memory Card Interface .8/ Video Card Interface .9/ Backup Battery Connector .1ð/ Processor Card Interface .11/ Hard Disk Drive Connector .1[...]

System Board (720, 720C) .1/ External Input Device Connector .2/ System-Expansion Connector (240-pin) .3/ Parallel Connector .4/ Serial Connector .5/ Password-override Connector .6/ PCMCIA Connector .7/ Base Memory Card Interface .8/ Video Card Interface .9/ Backup Battery Connector .1ð/ Hard Disk Drive Connector .11/ Processor Card Interface .12/[...]

Video Card .1/ External Display Connector .2/ LCD Connector .3/ System Board Connector .4/ Communication Adapter Connector Keyboard Control Card (Fro nt side) (Rear si de) .1/ Pointing Stick Connector .2/ System Board Interface .3/ Keyboard Connector .4/ Keyboard Connector ThinkPad 700, 700C, 720, 720C (9552) 113[...]

Voltage Converter (Fro nt side) (Rea r side ) .1/ Power Jack .2/ Battery Pack Interface .3/ System Board Interface .4/ Standby Battery Connector .5/ Suspend/Resume Switch 114 IBM Mobile Systems HMM[...]

Parts Listing (700) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 ThinkPad 700, 700C, 720, 720C (9552) 115[...]

Index 1 LCD (700) 1 44G3806 For Germany (Gray) (700) 1 48G9321 1 LCD Bezel Assembly (700) 1 53G7831 For Germany (Gray) 1 53G7832 Contrast and Brightness Slide (700) 53G7803 1 LCD (700C) 1 48G8723 For Germany (Gray) (700C) 1 48G9909 1 LCD Hinge Kit 85G8199 1 LCD Case 44G3875 Frame, Keyboard (700) 44G3797 For Germany (Gray) (700) 48G9313 For Japan (7[...]

Index Model 700C Cover 48G8714 For Germany (Gray) 48G9906 14 Door, Hard Disk Drive 44G3777 For Germany (Gray) 48G9317 15 Hard Disk Drive, 80MB 95F4743 Hard Disk Drive, 120MB 95F4744 Hard Disk Drive, 240MB 66G3200 Hard Disk Drive, 340MB 53G7862 16 Cover, IC DRAM Card 49G1108 For Germany (Gray) 49G2154 17 Video Card (700) 44G3782 Video Card (700C) 35[...]

Parts Listing (720, 720C) 13 14 1 2 3 4 5 6 7 8 9 11 12 10 15 16 17 18 19 20 21 22 23 24 25 26 2 See “FRU Service Procedures” on page 124. 118 IBM Mobile Systems HMM[...]

Index 1 LCD (720) 3 44G3806 For Germany (Gray) 3 48G9321 LCD (720C) 3 53G8137 For Germany (Gray) 3 53G8138 1 LCD Bezel Assembly (720) 3 53G7831 For Germany (Gray) 3 53G7832 1 LCD Hinge Kit 85G8199 1 LCD Case 44G3875 2 Frame, Keyboard (720) 53G9211 For Germany (Gray) 53G9179 Frame, Keyboard (720C) 53G9212 For Germany (Gray) 53G9180 For Japan 53G9209[...]

Index 16 Cover, IC DRAM Card 53G9187 For Germany (Gray) 53G9188 17 Video Card (720) 53G9206 Video Card (720C) 53G9207 18 Cable, Diskette Drive 53G9201 19 PCMCIA Card Slots 53G9190 20 Base Memory Card, 4MB 53G9203 21 Slot Holder, IC DRAM Card 53G9189 22 Diskette Drive Assembly 53G9200 23 Keyboard (see page 121) 24 Standby Battery 44G3799 For Belgian[...]

Options and Adapters Important When you replace the AC adapter or the Quick Charger with a new one, use the one available for the country you are in even though the system is from another country. Options and Adapters Keyboards w/ Trackpoint II (700, 700C, 720, 720C) AC Adapter (50 W) 48G8942 AC Adapter for Japan, 3-pin 49G2206 Car Battery Adapter [...]

Numeric Keypad (700, 700C, 720, 720C) Tools Belgian 95F5741 Canadian French 95F5466 Danish 95F5467 Dutch 95F5467 French 95F6313 German 95F6314 Greek 95F5467 Hebrew 95F5741 Icelandic 95F5467 Italian 95F6316 Japan 79F6401 Norwegian 95F5467 Spanish 95F6315 Swedish/Finnish 95F5468 Swiss/French 95F5711 Swiss/German 95F5715 Turkish 95F5467 U.K. English 9[...]

Power Cords 1 2 3 4 5 6 7 8 9 10 Warning: Use the power cord certified for your country. 1 Colombia, U.S., Venezuela 13F9959 Japan, 2-pin 6454377 Japan, 3-pin 65F0031 2 Hong Kong, Singapore, U.K. 14F0033 3 France, Germany, Spain 13F9979 4 Italy 14F0069 5 Australia, New Zealand 13F9940 6 Denmark 13F9997 7 Israel 14F0087 8 Bangladesh, Pakistan, 14F00[...]

FRU Service Procedures Review these service procedures before replacing a FRU. LCD FRU Replacement Notice: If missing or discolored dots appear on the LCD, carefully read the following note to determine whether or not you should replace the LCD. The LCD for the Model 700C and 720C contains over 921 000 thin film transistors (TFTs). A small number o[...]

ThinkPad 701C/701CS (2630) Checkout Guide . . . . . . . . . . . . . . . . 127 General Checkout . . . . . . . . . . . . . . 128 Memory Checkout . . . . . . . . . . . . . . 128 Keyboard/Auxiliary Input Device Checkout . . . 131 TrackPoint III Checkout . . . . . . . . . . . 132 Diskette Drive Checkout ........... 1 3 3 Hard Disk Drive Checkout .......[...]

Top System Board (Bottom View) ....... 1 8 5 Bottom System Board (Top View) ....... 1 8 6 Bottom System Board (Bottom View) ..... 1 8 7 Inverter Card (Front View) .......... 1 8 8 Inverter Card (Rear View) .......... 1 8 8 MultiPort II (Front View) ........... 1 8 9 MultiPort II (Rear View) ........... 1 8 9 Parts Listing . . . . . . . . . . . . . [...]

Checkout Guide Service for U. S. and Canada In the U. S. and Canada, the ThinkPad 701C/701CS is serviced only through EasyServe. Use the following procedure as a guide for computer problems: 1. Ask the customer for as much detail as possible about the failing symptoms. 2. Verify the symptoms by attempting to recreate the failure either by running t[...]

General Checkout The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses. Warning:  Only trained personnel should service the computer.  Drives in the computer that you are servicing might have been rearranged or the drive startup se[...]

The following table shows the available memory on a system with an 8MB base memory with different sizes of SO-DIMM. Memory errors might stop system operations or cause error codes to be displayed. Use the following procedure to isolate memory problems: Note: Make sure that the SO-DIMM is fully installed in the connector. A loose connection can caus[...]

clear the error log and run the test again. Do not replace any FRUs if errors do not reoccur. Updating Flash Memory: BIOS and Easy-Setup, which includes configuration programs and diagnostic tests, are stored in Flash memory. To update them, Flash memory must be updated. When Updating Flash Memory Do not power-off the computer, disconnect the Vac p[...]

Keyboard/Auxiliary Input Device Checkout Remove the external keyboard if the internal keyboard is to be tested. If the internal keyboard does not work or an unexpected character appears, make sure that the three flexible cables extending from the keyboard are correctly seated in the connectors on the top system board. If the keyboard cable connecti[...]

TrackPoint III Checkout If the TrackPoint III does not work, check the configuration in the Configuration Utility by pressing PgDn to reach the I/O Management screen. If the setting for TrackPoint III is Off , press the left or right arrow to change it to On . If this does not correct the problem, continue with the following procedure: Note: The Tr[...]

Diskette Drive Checkout Use the following procedure to isolate the diskette problem to a controller, drive, or diskette. For this test, you need a scratch, write-enabled, double-sided, high-density diskette (2.0MB that formats to 1.44MB) that is known to be good. 1. Power-off the computer. 2. Attach the external diskette drive if it is not already [...]

MultiPort II Checkout Use the following procedure to isolate a MultiPort II problem. The MultiPort II attaches to the system expansion connector at the rear of the computer. 1. Power-off the computer. 2. Remove all of the devices from the MultiPort II. 3. Unplug the AC adapter from the computer, if attached, and plug the AC adapter into the MultiPo[...]

Power Systems Checkout To verify the symptom of the problem, power-on the computer using each of the power sources available as follows: 1. Remove the battery. 2. Connect the AC adapter and check that power is supplied by pressing the power switch. 3. Disconnect the AC adapter and install the charged battery; then, check that power is supplied from[...]

2. If the voltage is not correct, replace the AC adapter. Note: In rare cases, the problem may be in the AC adapter even when the voltage is correct. If an AC adapter is available, try replacing the computer’s AC adapter. 3. If the voltage is correct, replace the top system board. If this does not correct the problem, go to “Undetermined Proble[...]

Note: The signal lines not used in these steps, terminals 2 and 3, are used for communication between the system and the battery. 3. If the voltage is less than + 10.0 V dc, the battery has been discharged or is defective. Recharge the battery. If the voltage is still less than + 10.0 V dc after the recharging, replace the battery. Checking the Sta[...]

If the customer cannot establish a connection between the ThinkPad 701C/701CS and a remote system, perform the following steps: 1. Ensure that the device the customer attempted to connect with is an Infrared Data Association (IRDA) compliant device. 2. Check to make sure that both systems are using the same revision level of the same software. 3. C[...]

If data transfers between the ThinkPad 701C/701CS and the remote system are slow or unstable: 1. Verify that the two systems are in close proximity (less than 1 meter [3.2 feet] apart for IRDA-compliant devices) and that the infrared window on the ThinkPad 701C/701CS is aligned with the remote device’s window. 2. Ensure that the windows on both s[...]

6. Select the PCMCIA icon and press Enter to run the test on the PCMCIA slots. The green LED on the PCMCIA card should turn on when the test runs. (If the green LED does not turn on, see “Reading the PC Test Card LED” on page 158.) Test results will be displayed under the PCMCIA icon. 7. If no errors are detected, the “OK” message appears. [...]

Symptom-to-FRU Index The Symptom-to-FRU Index contains tables that list causes of symptoms. The most likely cause is listed first. Use this index to help you decide which FRUs to have available when servicing a computer. Safety Notice 8: Translation on page 13 Before removing any FRU, power-off the computer, unplug all power cords from electrical o[...]

Numeric Error Codes Numeric error codes show the errors detected in POST or system operation. Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed, begin the diagnosis with the first error code. The cause of the first error code can result in false error codes being displayed. In the following e[...]

Symptom/Error FRU/Action 196 (Read error occurred in the hibernate area of the Hard Disk Drive.) 1. Disable, and then enable Hibernate mode. 2. Go to “Hard Disk Drive Checkout” on page 133. 3. Hard Disk Drive 197 (The computer memory size is not equal to the hibernate area size on the Hard Disk Drive.) 1. Disable, and then enable Hibernate mode[...]

Symptom/Error FRU/Action 860X (Pointing device error when TrackPoint III is disabled.) 1 . External Mouse. 2. External Keyboard. 3. Top System Board. 4. Bottom System Board. 861X (Pointing device error when TrackPoint III is enabled.) 1 . Reseat the TrackPoint III cable (the narrowest keyboard cable) at the Top System Board. 2. External Mouse. 3. K[...]

Note: The device ID and error codes are used to indicate in detail the portion of the FRU that caused the error. If replacing a FRU does not correct a problem, see the device ID or error code from the previous failure. If they have changed, the new FRU might be defective or incorrectly installed. If the problem remains after replacement of the FRUs[...]

Symptom/Error FRU/Action One long beep followed by four short beeps each time the power switch is operated. (System cannot power-on due to low battery voltage.) 1. Connect the AC adapter or install a fully charged battery. One beep every second. (System is entering Suspend mode due to low battery voltage.) 1. Connect the AC adapter or install a ful[...]

Note: To check the versions of the video drivers, follow these steps:  In DOS. Drivers display their version level when they are loaded. To check them after they have been loaded, look in CONFIG.SYS or AUTOEXEC.BAT files for video driver information.  In Windows. Drivers installed using the video driver installation utility place an icon in t[...]

Keyboard and TrackPoint III Symptoms Symptom/Error FRU/Action Keyboard (one or more keys) does not work. 1. Reseat the two larger keyboard cables. 2. Keyboard. 3. Top System Board. TrackPoint III does not work or the pointer moves automatically (“drifts”) or does not work correctly. 1. Go to “TrackPoint III Checkout” on page 132. MultiPort [...]

Indicator Related Symptoms Symptom/Error FRU/Action Indicator incorrectly remains on or off, but system runs correctly. 1. Reseat the inverter card. 2. Inverter Card. 3. Top System Board. Battery status indicator blinks green and beeps three times at power-on or Resume. 1. Check that a fully charged battery is installed. 2. Battery Pack 3. Reseat T[...]

Symptom/Error FRU/Action Battery pack charges, but the battery status indicator does not light. 1. Reseat the Inverter Card . 2. Replace the Inverter Card. Battery pack does not charge, the battery status indicator does not light, and the battery fuel gauge is less than 90%. 1. Check the AC adapter connection. Make sure that the computer is powered[...]

Infrared Related Symptoms See “Infrared Transceiver Checkout” on page 137 for information on the infrared transceiver and infrared transceiver checkout. Audio Related Symptoms Symptom/Error FRU/Action You cannot hear any sound. 1. In the Configuration Utility, check the volume level and the settings for Audio Power and Mute. 2. Attach external [...]

Other Symptoms Note: If you cannot find a symptom or error in this list and the problem remains, see “Undetermined Problems.” Symptom/Error FRU/Action Errors occur only when MultiPort II is used 1 . See “MultiPort II Checkout” on page 134. PCMCIA slot pin is damaged. 1 . Bottom System Board . Intermittent Problems Intermittent system interr[...]

3. Remove or disconnect all of the following devices: a. Non-IBM devices b. Devices attached to the expansion bus connector c. Printer, mouse, and other external devices d. Battery pack e. Hard disk drive f. Diskette drive or the device attached to the diskette drive connector g. SO-DIMM card h. PCMCIA cards Note: Remember that removing the hard di[...]

Related Service Procedures Understanding Fn Key Combinations The following table shows the Fn key and function key combinations and their corresponding functions. The Fn key works independently from the operating system. The operating system obtains the status through the system management interface to control the system. Fn + Description (alone) R[...]

Reading Status Indicators The system status indicators show the current computer status in different colors (green and yellow). Reading the Battery Status: If the computer is using the battery, the Battery Status field in the Configuration Utility indicates whether the battery is OK or low. If the computer is using external power, this field indica[...]

3. The computer attempts to load the operating system as customized. If the computer does not find an operating system, it displays a graphic message requesting that you insert a bootable diskette in the diskette drive and press F1 to resume operation. Removing the Power-On Password Important This information is not available in this HMM online for[...]

13. Select OK or press Enter to confirm the restart. Printing and Displaying Error Logs Diagnostics errors are printed on the printer that is attached to the parallel port when the error is detected. The error is also logged in the system memory. Use the following procedure to display the errors: 1. End the test, if it is running. 2. Press Ctrl + A[...]

Running the Low-Level Format Perform the following steps to format the hard disk: Warning: All data and formatting on the disk will be destroyed and cannot be recovered. Have the user make a backup copy of all information on the hard disk that should be saved. Make sure that a bootable diskette is available. Make sure that the drive address to be f[...]

Removing PCMCIA Cards After removing the PCMCIA cover, and filler plug if it is installed, you can insert or remove PCMCIA cards during most computer operations. To insert a PCMCIA card, perform the following steps: 1. Insert the PCMCIA card into one of the available slots, with the long row of pin sockets facing the computer and the label on the P[...]

Feature Description CMOS RAM 128 Bytes. VGA Video  ThinkPad 701CS 10.4-inch, 640 × 480, 256/226K color, DS-STN LCD color.  ThinkPad 701C 10.4-inch, 640 × 480, 256/226K color, TFT LCD color. Diskette Drive 1.44MB (3-mode for Japan, 2-mode for other countries) 3.5-inch external. Hard Drive (Removable)  360MB, 2.5-inch  540MB, 2.5-inch ?[...]

FRU Removals and Replacements This section contains information about removals and replacements. Follow the numerical sequence in “Disassembling the ThinkPad 701C/701CS” on page 163 and the three exploded views to remove or disconnect parts in the correct order. Reverse the numerical sequence to replace FRUs. Note exceptions and special instruc[...]

Safety Notice 8: Translation on page 13 Before removing any FRU, power-off the computer, unplug all power cords from electrical outlets, remove the battery pack, then disconnect any interconnecting cables. Safety Notice 1: Translation on page 7 Before the computer is powered-on after FRU replacement, make sure all screws, springs, or other small pa[...]

Disassembling the ThinkPad 701C/701CS This procedure provides the steps required to completely disassemble the ThinkPad 701C/701CS. The three exploded views show the parts of the computer that are removed at various stages of the disassembly process. The numbered callouts in the figures correspond to steps in the procedure. ThinkPad 701C/701CS Expl[...]

ThinkPad 701C/701CS Exploded View 3 9 15 12 13 18 11 17 16 8 14 BF BG BG BC 13 19 19 19 23 24 22 21 20 164 IBM Mobile Systems HMM[...]

ThinkPad 701C/701CS Exploded View 26 25 31 2 28 28 29 27 BC BJ BA BL 30 32 34 33 ThinkPad 701C/701CS (2630) 165[...]

If you follow all of the steps in this procedure, you completely disassemble the ThinkPad 701C/701CS. However, for some replacement operations, you may not need to completely disassemble the ThinkPad 701C/701CS. In those situations, the relative sequence of steps in this procedure is important. Some FRUs must be removed to reach the failing FRU, or[...]

.7/ Remove the screw (BK) located on the rear bottom left of the computer shown in the figure on page 163. .8/ Open the computer lid all the way (180°) and remove the keyboard shelf, shown in the figure on page 164. To release the keyboard shelf from the base assembly: 1. Gently pull up on the right side of the keyboard shelf. 2. Insert a tool int[...]

Warning: When you reinstall the keyboard, be careful not to damage the keyboard cables by pinching or crushing them. 1. Attach the three flat cables. 2. Tilt the front of the keyboard up and push the rear of the keyboard toward the back of the computer. 3. Press the keyboard down. 4. Pull the keyboard slightly forward to engage the latches located [...]

routing the backlight cable, see “Routing the Backlight Cable” on page 176. .17/ Detach the LCD backlight cable from the inverter card, shown in the figure on page 164. Replacement: For information on routing the backlight cable, see “Routing the Backlight Cable” on page 176. .18/ Detach the speaker cable from the top system board, shown in[...]

battery, fold the cable and place the standby battery in the space beside the battery pack connector. Safety Notice 6: Translation on page 12 To avoid shock, do not remove the plastic cover that surrounds the lower portion of the inverter card. .23/ Remove the inverter card from the top system board, shown in the figure on page 164. .24/ Remove the[...]

.28/ Remove the two bolts (BJ) and nuts (BA) holding the PCMCIA slot assembly to the bottom system board, shown in the figure on page 165. .29/ Remove the PCMCIA slot assembly, shown in the figure on page 165. .3ð/ Remove the modem shown in the figure on page 165. The modem is held in place with an adhesive gasket. You may need to pry gently on th[...]

Disassembling the LCD Assembly 4 9 9 6 3 3 3 3 8 5 1 11 7 12 2 10 10 BI BH BD BD BD BD Safety Notice 5: Translation on page 11 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes. Seek medical care if any symptoms from the fluid are present [...]

.4/ Carefully unsnap the T-shaped snaps along the bottom edge of the bezel, and lift it out. Be sure to use the correct replacement bezel for the LCD. The TFT bezel has adhesive on its top side wall. When you install a new TFT bezel, remove the backing first. .5/ Remove the microphone. .6/ Remove the backlight cable protective sleeve. Replacement: [...]

Replacing the Microphone and Sleeve The right hinge should already be installed. To replace the microphone and cables, perform the following steps: 1. Insert the microphone wires into the small slit in the backlight cable protective sleeve. 2. Holding the microphone and sleeve near the hinge, insert the yellow backlight cable through the slit in th[...]

Replacing the LCD Assembly To reattach the LCD assembly, follow these steps: 1. With the LCD cable flat, carefully wrap the end of the LCD cable around the attached sleeve on the cable, finishing with the end of the cable coming from behind the sleeve. 2. To prevent possible damage, tape the end of the cable to the bezel while you reattach the LCD [...]

Routing the Backlight Cable 2 1 .1/ Brown wire. .2/ Yellow wire. Warning: Incorrect routing of the backlight cable may cause it to break after repeated opening and closing of the computer lid. Routing the cable correctly is important to prevent this breakage. To route the backlight cable, follow these steps: 1. Plug the LCD backlight cable into the[...]

2 1 Backlight cable routing from the rear, shown without the computer lid. .1/ Brown wire. .2/ Yellow wire. 4. Route the yellow wire in the same manner as the brown wire. Position the yellow wire beside the brown wire where it runs over the connector on the side toward the back of the computer. Do not allow the wires to cross. 5. Be careful to keep[...]

Replacing the Top System Board Perform the following steps when you replace the top system board: 1. Before inserting the top system board, move the power switch cover forward toward the front of the base assembly. Make sure that the spring in the power switch is fully inside the plastic housing. 2. Insert the top system board, tilting the board to[...]

6. Press the metal tabs on each side of the SO-DIMM away from the card. The card should raise slightly as the tabs are pulled away from it. 7. Remove the card by holding it at a 15 to 20 degree angle and pulling it firmly away from the SO-DIMM socket. 8. Replace the SO-DIMM door. 9. Reattach all cables and other devices, including the AC adapter. 1[...]

Warning: The card will not lock into place if it has not been fully inserted into the socket. 9. Once the card is fully inserted into the socket, press the card down until it locks into place. It is held in place by two tabs, one on either side of the card. 10. Replace the SO-DIMM door. 11. Reattach all cables and other devices, including the AC ad[...]

Locations System (Front View) .1/ Latches .2/ LCD .3/ Keyboard .4/ Click Buttons .5/ TrackPoint III .6/ Fn Key .7/ Status Indicators See “Reading Status Indicators” on page 155. 3 6 2 5 1 7 4 ThinkPad 701C/701CS (2630) 181[...]

System (Left Side View) .1/ Power Jack .2/ Power Switch .3/ Parallel/Diskette Drive Connector .4/ Microphone-In Jack .5/ Line-In Jack .6/ Headphone-/Speaker-Out Jack 3 6 2 5 1 4 System (Right Side View) .1/ Battery Pack .2/ Hard Disk Drive .3/ PCMCIA Access Port .4/ Slot for Kensington Lock 3 2 1 4 182 IBM Mobile Systems HMM[...]

System (Rear View) .1/ Latches .2/ System Expansion Connector .3/ Docking Door A MultiPort II or Dock II can be connected to this interface to support the following features:  16-bit AT-bus interface  Serial port  Parallel port  Keyboard and mouse  Hard disk drive connection  LED control signals  Video signals  Audio signals[...]

Top System Board (Top View) .1/ Keyboard Connectors .2/ Inverter Card Connector .3/ Microphone Connector .4/ Speaker Connector .5/ Battery Pack Connector .6/ Lid Close Sensor .7/ Parallel/Diskette Drive Connector .8/ TrackPoint III Connector 3 6 2 8 5 1 7 4 184 IBM Mobile Systems HMM[...]

Top System Board (Bottom View) .1/ Inverter Card Connector .2/ Power Jack .3/ Power Switch .4/ Parallel/Diskette Drive Connector .5/ Microphone-In Jack .6/ Line-In Jack .7/ Headphone-/Speaker-Out Jack .8/ Standby Battery Connector .9/ Battery Pack Connector .1ð/ Board-to-Board Connector 3 9 6 2 8 5 1 7 4 10 ThinkPad 701C/701CS (2630) 185[...]

Bottom System Board (Top View) .1/ System Expansion Connector .2/ LCD Connectors .3/ PCMCIA Controller .4/ PCMCIA Slots .5/ System Controller .6/ Board-to-Board Connector .7/ Video Controller 3 6 2 5 1 7 4 186 IBM Mobile Systems HMM[...]

Bottom System Board (Bottom View) .1/ PCMCIA Connector .2/ Processor .3/ System Expansion Connector .4/ Modem Connector .5/ Random Access Memory .6/ SO-DIMM Connector .7/ Hard Disk Drive Connector .8/ RTC Battery .9/ Power-On Password Bypass Pads 3 9 6 2 8 5 1 7 4 ThinkPad 701C/701CS (2630) 187[...]

Inverter Card (Front View) .1/ Light-Emitting Diodes .2/ System Board Connector 2 1 Inverter Card (Rear View) .1/ Light-Emitting Diodes .2/ Infrared Serial Port .3/ LCD Connector 3 2 1 188 IBM Mobile Systems HMM[...]

MultiPort II (Front View) .1/ Port Connector 1 MultiPort II (Rear View) .1/ Release Lever .2/ External Display Port .3/ AC Adapter Port .4/ External Mouse/Numeric Keypad Port .5/ External Keyboard Port .6/ Audio Out .7/ Audio In .8/ Parallel Port .9/ Serial Port 3 9 6 2 8 5 1 7 4 ThinkPad 701C/701CS (2630) 189[...]

Parts Listing 190 IBM Mobile Systems HMM[...]

System Unit (ThinkPad 701C/701CS) Index FRU 1 Latch Kit (Includes logos and spring) 04H8327 2 Display Cover Assembly 04H8326 3 Microphone 04H8328 4 Right Hinge 04H8388 5 Color LCD (ThinkPad 701CS) 04H8333 5 Color LCD (ThinkPad 701C) 04H8331 6 LCD Bezel (ThinkPad 701CS) 04H8325 6 LCD Bezel (ThinkPad 701C) 04H8332 7a Keyboard Cam 42H1505 7b Keyboard [...]

Keyboards Country Arabic 04H8319 Belgian 04H8317 Canadian French 04H6918 Danish 04H8316 Dutch 04H8318 French 04H8310 German 04H8311 Greek 04H8322 Hebrew 04H8320 Italian 04H8309 Japanese 04H8323 Latin American 04H6919 Norwegian 04H8314 Portuguese 04H8312 Spanish 04H8308 Swedish/Finnish 04H8313 Swiss/French 04H8315 Swiss/German 04H8373 Turkish 04H832[...]

Options Memory 70ns, 3.3v, nonparity, self-refresh DIMM Memory SO-DIMM 4MB 92G7260 Memory SO-DIMM 8MB 92G7262 Memory SO-DIMM 16MB 92G7264 AC Adapter (U.S.) 04H6903 360MB Hard Disk Drive 04H6829 540MB Hard Disk Drive 04H6830 720MB Hard Disk Drive 25H4873 Dock II Adapter Card 04H8353 Dock II Adapter Kit Diskette Drive Cable 25H4879 Tools Standard Tri[...]

194 IBM Mobile Systems HMM[...]

ThinkPad 355x, 360x, 370C, 750x, 755C, 755Cs Model 355x - 2619 Model 360x - 2620 Model 370C, 750x, 755C, 755Cs - 9545 Read This First ................. 1 9 7 What to Do First ............... 1 9 8 General Checkout . . . . . . . . . . . . . . . . 200 Memory Checkout . . . . . . . . . . . . . . 201 System Board and Processor Card Checkout (370C, 750C[...]

1030 Diskette Drive . . . . . . . . . . . . . 239 1035 Hard Disk Drive ............ 2 4 0 1040 Keyboard Unit . . . . . . . . . . . . . 241 1050 IC DRAM Card ............ 2 4 4 1055 Diskette Drive Bezel .......... 2 4 4 1060 Status Indicator . . . . . . . . . . . . 245 1070 LCD Assembly . . . . . . . . . . . . 247 1080 Modem Card (355x) .......... 2[...]

Read This First Service for U. S. and Canada In the U. S. and Canada, the ThinkPad 370C and ThinkPad 360PE are serviced only through EasyServe. This hardware maintenance manual covers information about the following IBM ThinkPad models:  355, 360, 750 (monochrome)  355C, 360C, 360CE, 370C, 750C, 755C (TFT color)  750Ce (TFT color, enhanced[...]

What to Do First Before checking problems with the computer, determine whether or not the damage applies to the warranty by referring to the following: Note for Warranty: During the warranty period, the customer may be responsible for repair costs if the damage was caused by misuse, accident, modification, unsuitable physical or operating environme[...]

How to Use Error Messages: Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed, begin the diagnosis with the first error code. The cause of the first error code can result in false error codes being displayed. If no error code is displayed, see if the error symptom is listed in the “Symptom-t[...]

General Checkout Use the following procedure as a guide for computer problems. Note: The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses. 1. Obtain the failing symptoms in as much detail as possible. 2. Verify the symptoms by attemptin[...]

Memory Checkout Depending on the model, the memory size that is available for customer use appears differently. This is not a hardware problem. See the following table for the available memory size of each card. Note: For Models 370C, 755C and 755Cs, one of two types of memory cards can be used, IC DRAM card or DIMM card. If DIMM cards are installe[...]

3. Power-off the computer and remove the IC DRAM card, or DIMM card from its slot (if installed). 4. Press and hold the F1 key; then power-on the computer. Hold the F1 key down until Easy-Setup screen appears. 5. Select Test and press enter. 6. Select Memory and press enter to run the memory test on base memory. If an error appears, replace the sys[...]

2. Get the appropriate diskette which contains the update. 3. Insert the System Program Service Diskette into drive A and power-on the computer. 4. Select Update system programs from the menu. System Board and Processor Card Checkout (370C, 750Ce, 755C, 755Cs) The processing functions for the Models 370C, 750C, 755Ce, and 755Cs are performed by bot[...]

If the tests detect a keyboard problem, do the following one at a time to correct the problem. Do not replace a non-defective FRU.  Reseat the three cables.  Replace the keyboard.  Replace the interposer card.  Replace the system board. The following auxiliary input devices are supported for this computer.  Numeric keypad  Mouse ([...]

 Replace the system board. Pen and Digitizer Checkout (360P, 360PE, 750P) To check the stylus pen and digitizer, do the following. 1. Press and hold the F1 key. 2. Power-on the computer to go to Easy-Setup screen. 3. Select Test by using the stylus pen. 4. If the test menu appears, the pen and digitizer are operating correctly. If the menu does [...]

3. Select the Audio Diagnostics from the main menu. 4. Select Tests from the menu bar and press Enter. 5. Select All tests from the pull-down menu and press Enter. Run options are set to test once and stop on error as defaults. Other options can be selected by the pull-down menu of Setting-up . 6. Follow the instructions that appear on the screen t[...]

8. If the drive is attached through a Diskette Drive Attachment Unit, replace the unit. Power Systems Checkout To verify the symptom of the problem, power-on the computer using each of the power sources available as follows. 1. Remove the battery pack, diskette drive, and hard disk drive. 2. Connect the AC Adapter and check that power is supplied. [...]

 If the voltage is correct, replace the system board. If the problem is not corrected, go to “Undetermined Problems” on page 227.  If the voltage is not correct, go to the next step. 2. Unplug the AC Adapter cable from the ac power outlet and wait five minutes or longer to allow the over voltage protection circuit to be fully discharged a[...]

1 3 4 () () () Storage Swit ch Note: Signal lines, not used in these steps, are used for communication between the system and the battery. The storage switch is used to control the power to the internal microprocessor of the battery. The storage switch should be set to off (0) only when the battery is going to be kept in storage for more than two m[...]

7. If the voltage is less then + 9.0 V dc, replace the DC/DC card. If the voltage is more than + 9.0 V dc, the charging circuit is working correctly, replace the battery pack. Checking the Car-Battery Adapter: There are two types of adapters but the checkout procedure is the same for both of them. 1. Unplug the Car-Battery Adapter cable from the co[...]

Checking the Quick Charger: There are two types of chargers, but checkout procedures are the same for both of them. 1. Ensure that the battery pack is operating correctly. (See “Checking the Battery Pack” on page 208.) 2. Connect the power cord to the quick charger and the other end to an ac power outlet. Ensure that the power-on indicator is o[...]

 If the backup battery discharges quickly after replacement, replace the system board. Checking the Standby Battery 1. Power-off the computer and unplug the AC Adapter from the computer. 2. Open the keyboard, and remove the battery pack and the diskette drive. 3. Remove the standby battery. 4. Measure the voltage of the standby battery.  If t[...]

8. Charging of the standby battery starts. A depleted battery needs approximately 30 minutes to be recharged to the operational voltage of + 3.5 V dc. 9. Unplug the AC Adapter. 10. Verify the standby battery function by removing and installing the battery pack during suspend mode. Note: Removing and installing the battery pack during suspend mode s[...]

In the following condition, the computer cannot enter the suspend mode.  While the communication link is running.  When a serial mouse or other pointing device is selected in the Config menu of Easy-Setup. Events that cause entering of suspend mode:  Suspend mode is requested by the Fn key (Fn + F4).  The LCD is closed.  The keyboard[...]

Events that cause entering of hibernation mode:  The hibernation mode is requested by the Fn key (Fn + F12).  Timer conditions are satisfied in suspend mode.  Critical low battery condition. Event that causes exiting of hibernation mode.  The power-on switch is operated. When power is turned on, the hibernation history of the boot recor[...]

Symptom-to-FRU Index The Symptom-to-FRU Index lists the symptoms and errors and the possible causes. The most likely cause is listed first. Note: Perform the FRU replacement or actions in the sequence shown in the “FRU/Action” columns. If a FRU did not solve the problem, put the original part back in the computer. This index can also be used to[...]

Numeric Error Codes Symptom/Error FRU/Action 10X 1 . System Board 110 1. Go to “Memory Checkout” on page 201. 2. IC DRAM Card or DIMM Card 3. System Board 111 1. Go to “Memory Checkout” on page 201. 2. Expansion Unit/Port Replicator 3. System Board 118 (Memory parity error was logged in CMOS.) (Go to “Memory Checkout” on page 201.) 1 . [...]

Symptom/Error FRU/Action 185 (The startup sequence is not valid. Suspect that power was off when the startup sequence was being updated.) 1. Reset the startup sequence in Easy-Setup. 186 1 . System Board 188 1. Set the system identification using the ThinkPad 750Ce hardware maintenance diskette. Note: You can use this maintenance diskette for all M[...]

Symptom/Error FRU/Action 301, 303, 304, 305, 3XX 1 . Go to “Keyboard/Auxiliary Input Device Checkout” on page 203. 2. Keyboard 3. Interposer Card 4. External Numeric Keypad 5. External Keyboard 6. Keyboard/Mouse Cable 7. System Board 601, 6XX 1. Go to “Diskette Drive Test” on page 206. 2. Diskette Drive Assembly 3. Diskette 4. System Board [...]

Symptom/Error FRU/Action 861X (Pointing device error when TrackPoint II is enabled.) 1. Reseat the keyboard Track Point II cable at the interposer card . 355x, 360x See “1040 Keyboard Unit” on page 241. 370C, 750x, 755C, 755Cs See “2040 Keyboard Unit” on page 265. 2. Keyboard 3. External Mouse 4. System Board I9990301 I9990302 I9990305 1. R[...]

Note: The device ID and error codes are used to indicate the detail portion of the FRU which caused the error. If replacing a FRU does not correct a problem, see the Device ID or error code from the previous failure. If they have changed, the cause might be because the new FRU is defective or that the FRU was incorrectly installed. If the problem r[...]

Symptom/Error FRU/Action Two short beeps with error codes. POST error. See “Numeric Error Codes” on page 217. Two short beeps with blank screen. System Board No Beep Symptoms Symptom/Error FRU/Action No beep, power-on indicator not on, and a blank LCD during POST. 1. Go to “Power Systems Checkout” on page 207. 2. System Board 3. DC/DC Card [...]

LCD Related Symptoms The TFT LCD of the notebook computers contain over 921 000 thin film transistors (TFTs). A small number of missing, discolored or lighted dots (on all the time) is characteristic of TFT LCD technology. Excessive pixel problems can cause viewing concerns. The LCD should be replaced if the number of missing or discolored, or ligh[...]

Indicator Related Symptoms Symptom/Error FRU/Action Indicator incorrectly remains off or on, but system runs correctly. 1. Reseat the status indicator cable . 2. Status Indicator 3. Interposer Card 4. System Board Battery power status indicator blinks from green, yellow, to orange. 1. Check that a correct battery is installed. 2. Set the battery st[...]

Symptom/Error FRU/Action The system will not suspend or resume by opening or closing the LCD. 1. Go to “Suspend Mode” on page 213 and that check that the computer can enter suspend mode. 2. Go to Easy-Setup screen and press Fn + 4. If the computer enter suspend mode, suspect that the application program is defective. 3. Interposer Card 4. DC/DC[...]

Other Symptoms Note: If you cannot find a symptom or error in this list and the problem remains, see “Undetermined Problems” on page 227. Symptom/Error FRU/Action Stylus pen or digitizer does not work correctly. 1. Go to “Pen and Digitizer Checkout (360P, 360PE, 750P)” on page 205. Errors occur only when Port Replicator is used. 1. See “P[...]

Undetermined Problems You are here because the diagnostic tests did not identify which adapter or device failed, installed devices are incorrect, a short circuit is suspected, or the system is inoperative. Follow the procedures below to isolate the failing FRU (do not isolate non-defective FRUs). Verify that all attached devices are supported by th[...]

Related Service Procedures This section provides information about the following:  “Status Indicators”  “How to Run the Diagnostics” on page 229  “Error Log” on page 229  “Checking the Installed Devices List” on page 230  “Password Combinations” on page 230  “How to Run the Low Level Format” on page 230 [...]

Symbol Color Meaning Green Computer in suspend mode Blinking green Computer resuming normal mode Green Computer powered on How to Run the Diagnostics Use either the TrackPoint II or the cursor move keys to interact with the tests. The Enter key works the same as selecting the OK icon to reply OK. 1. Press and hold the F1 key; then power-on the comp[...]

5. To exit the screen, select the cancel icon or press Esc. The error log is not saved when system power is powered-off. Checking the Installed Devices List If a device is installed but the icon appears in a gray shade rather than a dark shade on the basic diagnostics screen, the device is defective. Reseat the device connectors. If the symptom rem[...]

Note: You can use this maintenance diskette for all Models. 3. Select Format the hard disk from the main menu. 4. Select the drive from the menu. 5. Follow the instructions on the screen. PC Test Card LED The green LED on the PC test card turns on when the PCMCIA test is running. If the LED does not turn on, check that the card is installed correct[...]

Product Overview The following table shows a brief overview of the system features. Models 355x, 360x Feature Description Processor  355x, 360, 360C, 360Cs, 360P – SL Enhanced 486SX 33 MHz, solder mounted on the system board  360CE, 360CSE, 360PE – SL Enhanced 486DX2 50/25 MHz, on the system board Bus Architecture  AT Bus  VESA loca[...]

Model 370C Feature Description Processor IntelDX4 75MHz on the system board Bus Architecture  AT Bus  VESA Local Bus for video subsystem Memory (Standard) 4MB (on the system board) Memory (Option)  2, 4, 8, 16MB, Basic IC DRAM card (max. 16 MB)  4, 8, 16MB, DIMM card (max. 32 MB)  DIMM card adapter CMOS RAM 128 Bytes VGA Video  10[...]

Feature Description VGA Video  750 – 9.5-inch (diagonally), 64 gray level, STN LCD monochrome  750C, 755Ce – 10.4-inch (diagonally), 256 color, TFT LCD color  750Cs – 9.5-inch (diagonally), 256 color, STN LCD color  750P – 9.5-inch (diagonally), 64 gray level, STN LCD monochrome Diskette Drive (Removable) 0.720, 1.2, 1.44, 2.88M[...]

Models 755C, 755Cs Feature Description Processor  SL Enhanced 486DX2 50MHz, on the system board  486DX4 75MHz, on the processor card Bus Architecture  AT Bus  VESA Local Bus for video subsystem Memory (Standard) 4MB (on the system board) Memory (Option)  2, 4, 8, 16MB, IC DRAM card (max. 16 MB)  4, 16MB, DIMM card (max. 32 MB) [...]

FRU Removals and Replacements This section contains information about removals and replacements.  The system board is sensitive to, and can be damaged by, electrostatic discharge. Establish personal grounding by touching a ground point with one hand before touching these units. An electrostatic discharge (ESD) strap must be used to establish per[...]

Removals Models 355x, 360x 1010 Rear Connector Door Remove the center latch .1/ ; then remove the rear connector door by flexing it .2/ . 1015 Foot To replace the foot:  Align the foot in the open position with one pivot in its hinge in the base cover  Press the other pivot point into position with your thumb or finger ThinkPad 355x, 360x, 37[...]

1020 Battery Pack Notes: 1. Be careful that the computer does not fall backward when the battery pack is removed. 2. Check that the keyboard latch springs are in place. 238 IBM Mobile Systems HMM[...]

1030 Diskette Drive  Battery Pack (1020) Warning: 1. Check that the backup and standby batteries are seated correctly to prevent damage to the diskette drive . 2. Do not put any pressure on the diskette drive cover. Remove the diskette drive exactly as shown in the figure. 3. Make sure that a diskette is not installed in the drive. Removing the [...]

1035 Hard Disk Drive  Battery Pack (1020) Warning: 1. Do not apply any extra force to the hard disk drive when removing it. Remove the hard disk drive exactly as shown in the figure. 2. Do not drop or apply any shock to the hard disk drive. The hard disk drive is sensitive to physical shock. Incorrect handling can damage it or cause permanent lo[...]

1040 Keyboard Unit  Battery Pack (1020) .1/ When removing the screw covers, use a small screwdriver as shown. .2/ Warning: When using a screwdriver to remove cover or latches, be careful not to:  Scratch the surface of the computer.  Break the latches. .3/ Open the keyboard. .4/ Remove the leaf-spring plate. .5/ When unlatching the upper c[...]

Tr ack Point II Cable .6/ Remove the upper cover. Note: To remove the upper cover, do not latch the keyboard. Lower the keyboard and remove the upper cover. .7/ Disconnect the cables to remove the keyboard unit as shown. Warning: Do not pull the keyboard cables. The keyboard cables can be damaged if the keyboard is disconnected without releasing th[...]

Notes for when replacing: 1. When replacing the keyboard, check that the three cables are clean, and inserted straight and fully into the connectors. Slide both ends of each latch at the same time to make sure that each cable is correctly inserted. Warning: While pressing the cables into place, be careful not to break the flexible cables. Go to “[...]

1050 IC DRAM Card  Battery Pack (1020)  Diskette Drive (1030) Warning: The IC DRAM card is sensitive to physical shock. Incorrect handling of the card can damage it. The eject tape (P/N 53G9318) must be used to remove the card. 1055 Diskette Drive Bezel  Battery Pack (1020)  Diskette Drive (1030) Insert a coin between the diskette drive[...]

1060 Status Indicator  Battery Pack (1020)  Keyboard Unit (1040) Warning: Do not pull the status indicator cable. The cable can be damaged if the indicator is disconnected (in step .2/ ) without releasing the latch. ThinkPad 355x, 360x, 370C, 750x, 755C, 755Cs 245[...]

The status indicator has three latches on its rear side and one on its front side. For step .3/ , do the following: 1. Release the rear latches by pushing each one with your thumb, as shown in the figure. (The broken circles in the figure show the locations of the three latches.) 2. Release the front latch. 3. Lift the indicator. (Rear View) Note: [...]

1070 LCD Assembly  Battery Pack (1020)  Keyboard Unit (1040)  Status Indicator (1060) LCD Connector 360P 355Cs, 360Cs 355, 360 355C, 360C .1/ When replacing the LCD ground-terminal screw, do not pull or push the LCD cables. ThinkPad 355x, 360x, 370C, 750x, 755C, 755Cs 247[...]

.2/ When removing the LCD cables, pull the connector straight up. Incorrect handling can damage the connector. Note: For the color model, make sure the indicator does not hook the most right LCD connector when replacing the status indicator. .3/ Remove the screw. .4/ Remove the right hinge cover. .5/ When removing the left hinge cover, use a small [...]

1080 Modem Card (355x) 1085 Bezel (360x)  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1035)  Keyboard Unit (1040)  Status Indicator (1060) Notes: 1. For Model 360x, use steps .9/ through .12/ t o remove the bezel. 2. When the audio card is installed in Model 360x, modem card means audio card in the following step. Th[...]

For the modem card: For the audio card: Notes: 1. Gently lift the audio card in step .7/ to avoid damaging the speaker cable. 2. Do not pull the speaker cable .8/ before the audio card is removed .7/ . or 250 IBM Mobile Systems HMM[...]

ThinkPad 355x, 360x, 370C, 750x, 755C, 755Cs 251[...]

Use the following table for reference when replacing parts. Note: When you reinstall the upper shield, make sure the LCD ground-terminal is located correctly as shown in the circle. Step Location (Quantity) Length .1a/ Speaker shield (2) 4 mm .1b/ Diskette drive connector (2) 6 mm .5/ Lower Shield (2) 4 mm Note: Make sure you use the correct screw.[...]

1090 Speaker Shield Assembly 1095 Interposer Card  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1035)  Keyboard Unit (1040)  Status Indicator (1060)  LCD Assembly (1070)  Modem Card (1080) Warning: Carefully remove any metal particles that might have flaked off. Be careful not to damage it with a screwdrivers, s[...]

Use the following table for reference when replacing parts. Notes: 1. Verify that the spacer .1d/ is in the correct position. 2. .2/ is a shield for radio frequency interference. Step Location (Quantity) Length .1a/ Speaker shield (1) 4 mm .1b/ Hard disk drive connector (2) 6 mm .1c/ System board (1) 16 mm .1d/ System board, spacer (1) 16 mm Note: [...]

1100 DC/DC Card  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1035)  Keyboard Unit (1040)  Status Indicator (1060)  LCD Assembly (1070)  Speaker Shield Assembly (1090)  Modem Card (1080)  Interposer Card (1095) Notes: 1. When replacing the DC/DC card, put the spacer .5/ on the screw hole. 2. DC-in holder .[...]

1110 Backup Battery 1115 Standby Battery  Battery Pack (1020)  Diskette Drive (1030) .4/ Backup Battery .3/ Standby Battery Note: When replacing the batteries, make sure both are seated correctly. Check that the insulator cover .1/ is in the correct position by sliding it end to end. Safety Notice 2: Translation on page 8 The standby battery [...]

1120 System Board Assembly  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1035)  Keyboard Unit (1040)  Status Indicator (1060)  LCD Assembly (1070)  Modem Card (1080)  Speaker Shield Assembly (1090)  Interposer Card (1095)  DC/DC Card (1100)  Backup Battery (1110)  Standby Battery (1115) Important [...]

Notes: 1. Before removing and replacing the system board, make sure that the PCMCIA cards are removed and the eject levers are not sticking out. 2. When replacing the system board assembly, align the power-key slide hub with the power-switch actuator by moving the power-key in the direction of the arrow. See the large circle in the figure. Before t[...]

1130 PCMCIA Slot Assembly  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1035)  Keyboard Unit (1040)  Status Indicator (1060)  LCD Assembly (1070)  Modem Card (1080)  Speaker Shield Assembly (1090)  Interposer Card (1095)  DC/DC Card (1100)  Backup Battery (1110)  Standby Battery (1115)  System [...]

Notes: 1. When handling the PCMCIA slot assembly, be careful not to disassemble any part of it. The slot assembly is not solidly fixed when it is removed from the system board or the FRU. 2. The screw stand-off located each corner of the PCMCIA slot, is easy to remove. Make sure that the screw stand-off is positioned when replacing the slot. Do not[...]

Removals Models 370C, 750x, 755C, 755Cs 2010 Rear Connector Door Remove the center latch .1/ ; then remove the rear connector door by flexing it .2/ . 2015 Foot To replace the foot:  Align the foot in the open position with one pivot in its hinge in the base cover  Press the other pivot point into position with your thumb or finger ThinkPad 3[...]

2020 Battery Pack Notes: 1. Be careful that the computer does not fall backward when the battery pack is removed. 2. When replacing the battery pack, check that the storage switch of the new battery is set to the on (|) position. Do not operate the storage switch of a battery that has been used and is going to be re-used. 3. Check that the keyboard[...]

2030 Diskette Drive  Battery Pack (2020) Warning: 1. Check that the backup battery and standby battery are seated correctly to prevent damage to the diskette drive when replacing the diskette drive. 2. Do not put any pressure on the diskette drive cover. Remove the diskette drive exactly as shown in the figure. 3. Make sure that a diskette is no[...]

2035 Hard Disk Drive  Battery Pack (2020) Warning: 1. Do not apply any extra force to the hard disk drive when removing it. Remove the hard disk drive exactly as shown in the figure. 2. Do not drop or apply any shock to the hard disk drive. The hard disk drive is sensitive to physical shock. Incorrect handling can cause damage it, and cause perm[...]

2040 Keyboard Unit  Battery Pack (2020) .1/ When removing the screw covers, use a small screwdriver as shown. .2/ Warning: When using a screwdriver to remove cover or latches, be careful not to:  Scratch the surface of the computer.  Break the latches. .3/ Open the keyboard. .4/ Remove the leaf-spring plate. .5/ When unlatching the upper c[...]

Tr ack Point II Cable .6/ Remove the upper cover. Note: To remove the upper cover, do not latch the keyboard. Lower the keyboard and remove the upper cover. .7/ Disconnect the cables to remove the keyboard unit as shown. Warning: Do not pull the keyboard cables. The keyboard cables can be damaged if the keyboard is disconnected without releasing th[...]

Notes for when replacing: 1. When replacing the keyboard, check that the three cables are clean, and inserted straight and fully into the connectors. Slide both ends of each latch at the same time to make sure that each cable is correctly inserted. Go to “Keyboard/Auxiliary Input Device Checkout” on page 203 and test all keys before returning t[...]

2050 IC DRAM Card  Battery Pack (2020)  Diskette Drive (2030) For Models 370C, 755C and 755Cs, one of two types of memory card can be used, IC DRAM card or DIMM card. Warning: The IC DRAM card is sensitive to physical shock. Incorrect handling of the card can damage it. The eject tape (P/N 53G9318) must be used to remove the card. Note: For M[...]

2055 DIMM and DIMM Adapter (755C, 755Cs)  Battery Pack (2020)  Diskette Drive (2030) Press both locks at the same time and remove the DIMM. While holding the strap .1/ , pull the DIMM adapter toward the front .2/ to remove it. 2 1 ThinkPad 355x, 360x, 370C, 750x, 755C, 755Cs 269[...]

Notes: 1. If the IC DRAM cards or the DIMM are not installed and the base plate is installed instead of these card, remove the plate as follows: a. Pinch the projection .1/ on the left side of the plate; then pull the plate slightly toward the front .2/ . b. Raise the rear portion of the plate .3/ and remove it. 1 2 2 2 1 2. When inserting the DIMM[...]

2056 Diskette Drive Bezel  Battery Pack (2020)  Diskette Drive (2030) Insert a coin between the diskette drive bezel and the computer as shown .1/ and push the bezel from the bottom of the computer .2/ to remove it. ThinkPad 355x, 360x, 370C, 750x, 755C, 755Cs 271[...]

2060 Status Indicator  Battery Pack (2020)  Keyboard Unit (2040) Warning: Do not pull the status indicator cable. The cable will be damaged if the status indicator is disconnected without releasing the latch in step .2/ . The status indicator has three latches on its rear and two in its front. in step .3/ , do as follows: 1. Release the rear [...]

(Rear View) Note: When replacing the indicator, insert the flexible cable straight into the connector until the head of the cable stops. Slide both ends of the latches at the same time to make sure that the cable is correctly inserted. 2 2 1 Use the following table for reference when replacing parts. Step Location (Quantity) Length .1/ Indicator br[...]

2070 LCD Assembly  Battery Pack (2020)  Keyboard Unit (2040)  Status Indicator (2060) LCD Connector 755C Screw holds two flexible cables. This figure shows the LCD that does not have a contrast control. (P/N 84G4337) 370C, 750C, 750Cs 755C, 755Cs 750 750P 274 IBM Mobile Systems HMM[...]

Important  Two types of LCDs are available for the Model 755C: one with a contrast control and one without. Make sure that you replace the LCD with the correct type.  The LCD for the Model 370C does not have a contrast control. .1/ When replacing the LCD ground-terminal screw, do not pull or push the LCD cables. .2/ When removing the LCD cabl[...]

Caring for the LCD  When cleaning of the LCD becomes necessary, gently wipe the LCD with a dry, soft cloth. Do not use alcohol or detergent to clean the LCD.  To avoid damaging the LCD, do not scratch or apply any force to its surface.  Do not put anything on the surface of the LCD. 276 IBM Mobile Systems HMM[...]

2080 Speaker Shield Assembly  Battery Pack (2020)  Diskette Drive (2030)  Hard Disk Drive (2035)  Keyboard Unit (2040)  Status Indicator (2060)  LCD Assembly (2070) Models 750x, 755C, and 755Cs ThinkPad 355x, 360x, 370C, 750x, 755C, 755Cs 277[...]

Model 370C Important: 1. Carefully remove any metal particles that might have flaked off. 2. The shaded part in the figure is attached to the speaker shield assembly with light adhesive. This FRU is a separate FRU from the speaker shield assembly. .1/ Remove the screws. .2/ Gently raise the speaker shield assembly to avoid damaging the speaker cabl[...]

When Disconnecting the Connector  Do not pull the speaker cable before the audio card is removed.  Be careful not to damage the speaker with screwdrivers, screws, or other objects. A scratch will damage the speaker.  When replacing the speaker shield, insert it under the projection at the left, rear corner of the computer base. Use the fol[...]

2085 Audio Card Note: Refer to “Product Overview” on page 232 to see whether the audio card is standard or not.  Battery Pack (2020)  Diskette Drive (2030)  Hard Disk Drive (2035)  Keyboard Unit (2040)  Status Indicator (2060)  LCD Assembly (2070)  Speaker Shield Assembly (2080) 1 1 2090 Interposer Card  Battery Pack (20[...]

2100 DC/DC Card  Battery Pack (2020)  Diskette Drive (2030)  Hard Disk Drive (2035)  Keyboard Unit (2040)  Status Indicator (2060)  LCD Assembly (2070)  Speaker Shield Assembly (2080)  Audio Card (2085)  Interposer Card (2090) Notes: 1. When replacing the DC/DC card, put the spacer .5/ on the screw hole. 2. DC-in holder .[...]

2110 Backup Battery 2105 Standby Battery  Battery Pack (2020)  Diskette Drive (2030) Model 750x .2/ Standby Battery .3/ Backup Battery Models 370C, 755C, and 755Cs .3/ Standby Battery .4/ Backup Battery 282 IBM Mobile Systems HMM[...]

Note: When replacing the batteries, make sure the batteries are seated correctly. Make sure the insulator cover .1/ is in the correct position by sliding it end to end. Safety Notice 2: Translation on page 8 The standby battery contains a small amount of nickel and cadmium. Do not disassemble it, recharge it, throw it into fire or water, or short-c[...]

2120 System Board Assembly  Battery Pack (2020)  Diskette Drive (2030)  Hard Disk Drive (2035)  Keyboard Unit (2040)  Status Indicator (2060)  LCD Assembly (2070)  Speaker Shield Assembly (2080)  Audio Card (2085)  Interposer Card (2090)  DC/DC Card (2100)  Backup Battery (2110)  Standby Battery (2105) Important [...]

Notes: 1. For Model 755C, there are two types the system boards. Make sure the correct system board by checking the part number in the part list. After replacing the system board, run the display test from the Easy-Setup and use the Pause button to check the color graduations that are displayed after the Video Page screen. If the color blocks in on[...]

2130 PCMCIA Slot Assembly  Battery Pack (2020)  Diskette Drive (2030)  Hard Disk Drive (2035)  Keyboard Unit (2040)  Status Indicator (2060)  LCD Assembly (2070)  Speaker Shield Assembly (2080)  Audio Card (2085)  Interposer Card (2090)  DC/DC Card (2100)  Backup Battery (2110)  Standby Battery (2105)  System [...]

2140 Processor Card (750Ce, 755C, 755Cs)  Battery Pack (2020)  Diskette Drive (2030)  Hard Disk Drive (2035)  Keyboard Unit (2040)  Status Indicator (2060)  LCD Assembly (2070)  Speaker Shield Assembly (2080)  Audio Card (2085)  Interposer Card (2090)  DC/DC Card (2100)  Backup Battery (2110)  Standby Battery (21[...]

Turn the system board upside down. Remove the screws .4/ and .5/ . Models 370C, 755C and 755Cs have only the screw on the right side in step 5 . Notes: 1. In step .1/ , use 5.0 mm and 5.5 mm hex head screwdrivers. To remove the processor card, gently lift the area shown by .3/ straight up. Do not pull the other areas. 2. In step .6/ , pull both edg[...]

Locations System - Front View (750, 750Cx, 755Cx, 370C, 360x, 355x) .1/ LCD .2/ Contrast Control Note: The Model 360 does not have a contrast control. The Model 755C has one of two types of LCD: one with a contrast control and one without. .3/ Brightness Control .4/ Status Indicator See “Status Indicators” on page 228. .5/ External Input Device[...]

System Front View - (750P, 360P, 360PE) .1/ Convertible LCD .2/ Contrast Control .3/ Brightness Control .4/ Status Indicator .5/ External Input Device Connector .6/ PCMCIA Slot .7/ PCMCIA Release Lever .8/ Keyboard .9/ LCD and Keyboard Latch .1ð/ Hard Disk Drive Compartment .11/ Battery Compartment .12/ Click Buttons .13/ Diskette-Eject Button .14[...]

System Rear View - All Models .1/ Diskette Drive Cover .2/ Power Switch .3/ Microphone/Line-In Jack .4/ Headphone Jack Note: Not all models have jacks .3/ and .4/ . .5/ Power Jack .6/ Serial Connector .7/ Parallel Connector .8/ External Display Connector .9/ Reset Pushbutton .1ð/ System Expansion Connector Note: Model 355x does not have this conne[...]

System Board (Top View) .1/ Power Switch .2/ Modem Card Connector (355x, 360x) .3/ Serial Connector .4/ Audio Card Connector .5/ Speaker Connector (370C only) .6/ Parallel Connector .7/ Interposer Card Connector .8/ External Display Connector .9/ Reset Pushbutton .1ð/ System Expansion Connector Note: Model 355x does not have this connector. .11/ E[...]

System Board (Bottom View) .1/ Power-On Password Connector .2/ Backup Battery Connector .3/ Standby Battery Connector .4/ IC DRAM Card Connector .5/ Processor Card Connector (750Ce, 755C, 755Cs) ThinkPad 355x, 360x, 370C, 750x, 755C, 755Cs 293[...]

Processor Card (370C, 750Ce, 755C, 755Cs) .1/ System Board Connector DC/DC Card - Top View .1/ External Power Jack .2/ Battery Pack Terminal Models 355x, 360x Models 370C, 750x, 755x 294 IBM Mobile Systems HMM[...]

Interposer Card - All Models (Front View) .1/ LCD Connector, Color .2/ LCD Connector, Pen .3/ LCD Connector, Monochrome and Color .4/ LCD Power Connector, Color .5/ Status Indicator Connector .6/ Keyboard TrackPoint II Connector .7/ Keyboard Signal Connector .8/ Keyboard Signal Connector .9/ LCD Open Detect Switch ThinkPad 355x, 360x, 370C, 750x, 7[...]

Parts Listing Models 350x, 360x 35 1 2 2 3 3 4 7 8 9 10 11 12 13 14 15 16 17 19 20 5 22 21 23 24 25 26 27 21a 28 29 30 29a 23a 17a 18 31 32 33 34 6b 6c 5 6 6a 296 IBM Mobile Systems HMM[...]

System Unit (355x, 360x) Index 1 LCD Assembly (355, 360) 84G2265 LCD Assembly (355C, 360C, 360CE) 84G5719 LCD Assembly (355Cs, 360Cs, 360CSE) 84G2264 LCD Assembly (360P) 84G5721 LCD Assembly (360PE) 85G9678 2 Hinge Cover (355, 360) 84G2303 Hinge Cover (355C, 360C, 360CE) 84G5703 Hinge Cover (355Cs, 360Cs, 360CSE) 84G2258 Hinge Cover (360P, 360PE) 8[...]

Index Base Cover Assembly (360) 84G2274 For Benelux 84G5707 For Japan 84G5708 Base Cover Assembly (360C) 84G5711 For Benelux 84G5712 For Japan 84G5708 Base Cover Assembly (360Cs) 84G2250 For Benelux 84G5709 For Japan 84G5708 Base Cover Assembly (360CE, 360CSE) 85G2404 For Benelux 85G2405 For Japan 85G2406 Base Cover Assembly (360P) 84G5714 For Bene[...]

Keyboard Arabic 84G5909 Belgium 84G5907 Canadian French 84G5915 Danish 84G5906 Dutch 84G5904 Finnish, Swedish 84G5903 French 84G5900 German (Black) 84G5898 Greek 84G5913 Hebrew 84G5910 Italian 84G5902 Japanese 84G5916 Latin American 84G5914 Norwegian 84G5908 Portuguese 84G5911 Spanish 84G5905 Swiss/French 84G5901 Swiss/German 84G5899 Turkish 84G591[...]

Model 370C 6a 1 2 2 3 3 4 5 8 9 10 11 12 13 14 15 16 17 18 19 20 5 17a 11a 7 21 22 23 24 25 26 27 6 28 29 30 31 32 33 23a 34 35 36 300 IBM Mobile Systems HMM[...]

System Unit (370C) Index 1 LCD Assembly 29H7543 2 Hinge Cover 66G5047 3 Hinge Bracket, Right, Left 66G5057 4 Status Indicator Assembly 29H6688 5 Screw Cover 66G5046 6 Speaker Shield Assembly 84G4290 6a Insulator 84G4357 7 Speaker (Includes speaker holder) 66G3754 8 Interposer Card 66G9242 9 DC/DC Card 84G4329 10 PCMCIA Slot Assembly 66G5121 11 Syst[...]

Keyboard Index 36 Upper Cover 84G2257 PCMCIA Security Plate 85G8625 EMI Spring Plate 85G0948 DC Plug 85G6664 Arabic 66G0163 Belgian 66G0161 Canadian French 66G0169 Danish 66G0160 Dutch 66G0158 Finnish 66G0157 French 66G0154 German (Black) 66G6402 Greek 66G0167 Hebrew 66G0164 Italian 66G0156 Japanese 66G0171 Latin American 66G0168 Norwegian 66G0162 [...]

Model 750x 1 2 2 3 3 4 5 6 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 5 28 29 30 31 32 28a 17a 11 a 7 ThinkPad 355x, 360x, 370C, 750x, 755C, 755Cs 303[...]

System Unit (750x) Index 1 LCD Assembly (750) 4 66G3710 For Germany (Gray) 4 66G3711 LCD Assembly (750C, 750Ce) 4 66G5058 For Germany (Gray) 4 66G5083 LCD Assembly (750P) 4 66G5059 For Germany (Gray) 4 66G5084 LCD Assembly (750Cs) 66G6210 For Germany (Gray) 66G6211 2 Hinge Cover (750) 66G5048 For Germany (Gray) 66G5077 Hinge Cover (750C, 750Cs, 750[...]

Index 13 Hard Disk Drive (Includes strap, index 12) 170MB 66G5066 For Germany (Gray) 66G5085 340MB 66G5068 For Germany (Gray) 66G5087 14 Lower Shield (750, 750C, 750Cs, 750P) 66G5043 Lower Shield (750Ce) 66G9227 15 Rear Connector Cover 66G5050 For Germany (Gray) 66G5079 16 PCMCIA Cover 66G5053 (Includes bezels and security plate) For Germany (Gray)[...]

Keyboard Index 29 See Keyboard List 30 Leaf Spring Plate 66G0041 31 Upper Cover (750) 66G5045 For Germany (Gray) 66G5074 Upper Cover (750C, 750Cs, 750Ce) 66G5094 For Germany (Gray) 66G5095 Upper Cover (750P) 66G6771 For Germany (Gray) 66G6772 32 Stylus Pen (750P) 5 66G6695 For Germany (Gray) 5 66G6696 Arabic 66G0163 Belgian 66G0161 Canadian French [...]

Models 755C and 755Cs 6a 1 2 2 3 3 4 5 8 9 10 11 12 13 14 15 16 17 18 19 20 5 17a 11 a 7 21 22 23 24 25 26 27 21a 6 28 29 30 31 32 33 23a 34 ThinkPad 355x, 360x, 370C, 750x, 755C, 755Cs 307[...]

System Unit (755C, 755Cs) Index 1 LCD Assembly (755C) 66G5058 For Japan 84G4316 LCD Assembly (755C) 84G4337 (This LCD does not have a contrast 84G4317 control.) LCD Assembly (755Cs) 2 Hinge Cover 66G5047 3 Hinge Bracket, Right, Left 66G5057 4 Status Indicator Assembly (755C) 84G4293 Status Indicator Assembly (755Cs) 84G4355 5 Screw Cover 66G5046 6 [...]

Keyboard Index 23a Attachment Holder 84G2294 24 IC DRAM Card (See Options) 25 Battery Pack (Nickel Metal Hydride) 66G2820 For Belgium, Dutch 66G2822 For Switzerland 66G2821 For Danish, Sweden, Finland, Norway 66G5063 26 Diskette Drive (4-mode) 66G5060 (Includes strap, index 27) Diskette Drive (3-mode) 84G2269 (Includes strap, index 27) 27 Diskette [...]

Common/Option Parts List Miscellaneous Parts Options Notes: 1. When you replace the AC adapter or the Quick Charger with a new one, use the one for the country you are in even if the system is from different country. 2. The warranty for the system unit is not applied to all options. AC Adapter (35 W, 3-pin) 85G1952 For Japan (2-pin) 85G6669 AC Adap[...]

Model Unique Options Models 355x, 360x, 370C Basic IC DRAM CARD (no parity) 8MB 84G5725 4MB 84G5724 16MB 84G5726 Internal Modem Card 84G5917 (U.S./Canada/Latin America) Telephone Cable 84G8254 (U.S./Canada/Latin America) Telephone Wall Plug 85G2367 Model 370C Audio Card 66G5037 Basic IC DRAM CARD (no parity) 8MB 84G5725 4MB 84G5724 16MB 84G5726 Dis[...]

Numeric Keypad Accessories Tools Belgian 95F5741 Canadian French 95F5466 Danish 95F5467 Dutch 95F5467 French 95F6313 German 95F6314 Greek 95F5467 Hebrew 95F5741 Icelandic 95F5467 Italian 95F6316 Japanese 79F6401 Norwegian 95F5467 Spanish 95F6315 Swedish/Finnish 95F5468 Swiss/French 95F5711 Swiss/German 95F5715 Turkish 95F5467 U.K. English 95F5741 U[...]

Power Cords 1 2 3 4 5 6 7 8 9 10 Warning: Use the power cord certified for your country. 30/40W 35W 1 Colombia, U.S., Venezuela 13F9959 25H2207 Japan, 2-pin 6454377 85G6665 Japan, 3-pin 65F0031 2 Hong Kong, Singapore, U.K. 14F0033 25H2215 3 France, Germany, Spain 13F9979 25H2209 4 Italy 14F0069 25H2223 5 Australia, New Zealand 13F9940 25H2205 6 Den[...]

314 IBM Mobile Systems HMM[...]

ThinkPad 755CD, 755CDV (9545) General Checkout . . . . . . . . . . . . . . . . 317 Memory Checkout . . . . . . . . . . . . . . 317 System Board and Processor Card Checkout . 319 Keyboard/Auxiliary Input Device Checkout . . . 320 TrackPoint III Checkout ........... 3 2 0 Game Port Checkout ............. 3 2 1 Diskette Drive Test ............. 3 2 1 [...]

2125 Video Card or Rear IR ......... 3 6 8 2130 DC/DC Card . . . . . . . . . . . . . 369 2140 DSP Card . . . . . . . . . . . . . . . 370 2150 Interposer Card . . . . . . . . . . . . 371 2160 System Board Assembly ........ 3 7 2 2170 PCMCIA Slot Assembly ........ 3 7 3 2180 Processor Card . . . . . . . . . . . . 375 2190 LCD Assembly . . . . . . . .[...]

General Checkout Use the following procedure as a guide for computer problems. The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses. 1. Obtain the failing symptoms in as much detail as possible. 2. Verify the symptoms by attempting to r[...]

Memory errors might stop system operations, show error messages on the screen, or hang the system. The computer detects memory parity errors but does not correct them. Use the following procedure to isolate memory problems. 1. Check whether or not the memory card use parity or non-parity. Note: Installing a non-parity memory card causes parity erro[...]

an error log is printed on the printer connected to the parallel port. See “Error Log” on page 346 for more information. System Programs in Flash Memory: System setup programs and diagnostic tests are stored in flash memory. Flash Memory Update: A flash memory update is required for the following conditions:  New versions of system programs.[...]

Keyboard/Auxiliary Input Device Checkout Remove the external keyboard if the internal keyboard is to be tested. If the internal keyboard does not work or an unexpected character appears, make sure that the three flexible cables extending from the keyboard are correctly seated in the connectors on the interposer card. If the keyboard cable connectio[...]

on the screen automatically for a short time. This self-acting pointer movement can occur when a slight, steady pressure is applied to the TrackPoint III pointer while the computer is powered on or while the system is running, or re-adjustment is required because the temperature has exceeded its normal temperature range. This symptom does not indic[...]

4. If the controller test runs without errors, the drive read/write tests start automatically. 5. If the drive test detects an error, FRU code 50 for FDD-1 or 51 for FDD-2 appears. If the diskette itself is known to be good, replace the drive. 6. If the drive is attached through a Port Replicator as FDD-1 or FDD-2 and the test detects errors, move [...]

 If the operational charge does not work, go to “Checking Operational Charging” on page 323. Note: There are several types of adapters. The procedure for checking both types is the same. 1. Unplug the AC Adapter cable from the computer and measure the output voltage at the plug of the AC Adapter cable. See the following figure. 1 2 AC Adapte[...]

Checking the Battery Pack: Battery charging will not start until the Fuel-Gauge shows that less than 90% of the total power remains; with this condition the battery pack will charge to 100% of its capacity. This protects the battery pack from being over-charged or having a shortened life. Before you do the following steps, check the following:  [...]

(T) Note: Signal lines, not used in these steps, are used for communication between the system and the battery. The storage switch is used to control the power to the internal microprocessor of the battery. The storage switch should be set to off (0) only when the battery is going to be kept in storage for more than two months. 3. If the voltage is[...]

Checking the Car-Battery Adapter Note: There are several types of adapters but the checkout procedure is the same for both of them. 1. Unplug the Car-Battery Adapter cable from the computer. 2. Plug the Car-Battery Adapter into the cigarette lighter socket. Note: If the adapter is already plugged in, reseat it. 3. Measure the output voltage of the [...]

 If the voltage is correct, replace the system board.  If the voltage is not correct, the backup battery has been discharged. Replace the backup battery.  If the backup battery discharges quickly after replacement, replace the system board. Checking the Standby Battery 1. Power-off the computer and unplug the AC Adapter from the computer. [...]

 If the voltage is less than + 4.0 V dc, replace the DC/DC card. If the voltage is still low, replace the system board.  If the voltage is more than + 4.0 V dc, power-off the computer, replace the standby battery, and go to the next step. 7. Ensure that the AC Adapter is plugged into the computer; then power-on the computer. 8. Charging of th[...]

Standby Mode: When in standby mode the following occurs:  The LCD backlight turns off.  The hard disk motor stops.  The CPU clock is set to the lowest speed. Events that cause entering of standby mode:  Standby requested by the Fn key. (Fn + F3)  No activity under auto-standby enabled by the feature utility. Events that cause exiting[...]

Events that cause exiting or resuming of the suspend mode:  (Resume) The LCD is opened.  (Resume) The keyboard is closed.  (Resume) Real time clock alarm signaled.  (Resume) Ring indicator (RI) signaled by serial or PCMCIA device.  (Resume) The Fn key is pressed.  (Exit) Timer conditions are satisfied to enter hibernation mode. Hi[...]

Symptom-to-FRU Index The Symptom-to-FRU Index lists the symptoms and errors and the possible causes. The most likely cause is listed first. Perform the FRU replacement or actions in the sequence shown in the “FRU/Action” columns. If a FRU did not solve the problem, put the original part back in the computer. Do not replace a non-defective FRU. [...]

Symptom/Error FRU/Action 163 (Time and Date was not set.) 1. Set Time and Date. 2. System Board 173 (Configuration data were lost.) 1. Select OK in the error screen; then set time and date . 2. Backup Battery 3. System Board 174 (Perform “Checking the Installed Devices List” on page 346 before changing any FRUs.) 1 . Check Device Configuration.[...]

Symptom/Error FRU/Action 2XX 1. Go to “Memory Checkout” on page 317. 2. IC DRAM Card, DIMM, or DIMM Adapter 3. System Board 301, 303, 304, 305, 3XX 1 . Go to “Keyboard/Auxiliary Input Device Checkout” on page 320. 2. Keyboard 3. Video Card 4. External Numeric Keypad 5. External Keyboard 6. Keyboard/Mouse Cable 7. System Board 601, 6XX 1. Go[...]

Symptom/Error FRU/Action 861X (Pointing device error when TrackPoint III is enabled.) 1. Reseat the keyboard Track Point III cable at the interposer card. See “2080 Keyboard Unit” on page 359. 2. Keyboard 3. External Mouse 4. Video Card 5. System Board I9990301 I9990302 I9990305 1. Reseat the boot device. 2. Check the startup sequence for the c[...]

Note: The device ID and error codes are used to indicate the detail portion of the FRU which caused the error. If replacing a FRU does not correct a problem, see the Device ID or error code from the previous failure. If they have changed, the cause might be because the new FRU is defective or that the FRU was incorrectly installed. If the problem r[...]

Symptom/Error FRU/Action Two short beeps with blank screen. System Board No Beep Symptoms Symptom/Error FRU/Action No beep, power-on indicator not on, and a blank LCD during POST. 1. Go to “Power Systems Checkout” on page 322. 2. System Board 3. DC/DC Card 4. Power sources No beep, power-on indicator on, and a blank LCD during POST. 1 . System [...]

Symptom/Error FRU/Action  LCD backlight not working, or  LCD too dark, or  LCD brightness cannot be adjusted, or  LCD contrast cannot be adjusted. 1. Reseat the LCD connectors. 2. LCD Assembly 3. Interposer Card 4. DC/DC Card  LCD screen unreadable, or  Characters missing pels, or  Screen abnormal, or  Wrong color displayed.[...]

Symptom/Error FRU/Action  Abnormal screen  Uneven color on the screen  Spot on the screen 1. Check that the white film on the LCD cover is clean. Gently wipe the film with a dry, soft cloth, such as a lens cleaner. 2. LCD Cover 3. Diagnose the LCD assembly by following “LCD Related Symptoms” on page 336. Note: The customer may be respo[...]

Keyboard/TrackPoint III Related Symptoms Symptom/Error FRU/Action Keyboard (one or more keys) does not work. 1. Reseat the three keyboard cables. 2. Keyboard 3. Video Card 4. System Board TrackPoint III does not work. 1. Go to “TrackPoint III Checkout” on page 320. 2. Keyboard 3. Video Card 4. System Board Pointer moves automatically or does no[...]

Function/Audio Related Symptoms Symptom/Error FRU/Action The system will not suspend or resume by opening or closing the keyboard. 1. Go to “Suspend Mode” on page 329 and check that the computer can enter suspend mode. 2. DC/DC Card 3. Video Card 4. System Board The system will not suspend or resume by opening or closing the LCD. 1. Go to “Su[...]

Peripheral Device Related Symptoms Symptom/Error FRU/Action External display does not work correctly. 1. See “External Display Self-Test” in “Common Devices Checkout” section. Printer problems. 1. Run Printer Self-test . 2. Parallel Port Device 3. Cable 4. System Board Serial or parallel port device problems. 1 . Device 2. Device Cable 3. S[...]

Infrared Related Symptoms Symptom/Error FRU/Action Unable to communicate using the Infrared (IR) Port 1. Make sure the setup for the IR is correct. 2. Make sure there are no fluorescent lights near the computer. The computer may receive electrical noise from the fluorescent light. 3. Run the advanced diagnostic test. If an error occurs and a FRU co[...]

Undetermined Problems You are here because the diagnostic tests did not identify which adapter or device failed, installed devices are incorrect, a short circuit is suspected, or the system is inoperative. Follow the procedures below to isolate the failing FRU (do not isolate non-defective FRUs). Verify that all attached devices are supported by th[...]

Related Service Procedures This section provides information about the following:  “Status Indicators”  “How to Run the Diagnostics” on page 345  “Error Log” on page 346  “Reset Pushbutton” on page 346  “Checking the Installed Devices List” on page 346  “Password Combinations (POP, HDP, PAP)” on page 347 ?[...]

Symbol Color Meaning Green Keys in Caps Lock mode Green Keys in Scroll Lock mode Green Computer in suspend mode Blinking green Computer resuming normal mode Green Computer powered on How to Run the Diagnostics Use either the TrackPoint III or the cursor move keys to interact with the tests. The Enter key works the same as selecting the OK icon to r[...]

Error Log Diagnostic errors are printed on the printer that is attached to the parallel port when the error is detected. The error is also logged in the system memory. Do the following to display the errors. 1. End the test, if it is running. 2. Press Ctrl + A to select the advanced diagnostic mode. 3. Press Ctrl + E . 4. The error log appears. 5. [...]

Password Combinations (POP, HDP, PAP) The password relationship is:  When POP is the same as HDP The POP prompt appears, but the HDP prompt does not appear.  When POP is not the same as HDP Both POP and HDP prompts appear.  PAP and HDP When PAP is used, the HDP is enabled automatically, but no HDP prompt appears. The HDP is set the same as[...]

Fn Key Combinations The following table shows the Fn key and function key combinations and their corresponding functions. The Fn key works independently from the operating system. The operating system obtains the status through the system management interface to control the system. Fn + Description F1 Reserved F2 Fuel-gauge display ON/OFF F3 Standb[...]

Product Overview The following table shows an overview of the system features. Feature Description Processor Intel 486DX4 100/33 MHz Bus Architecture  AT Bus  VESA Local Bus for video subsystem Memory (Standard) 8MB (on the system board) Memory (Option)  2, 4, 8, 16MB, Basic IC DRAM card (max. 16 MB)  4, 8, 16MB, DIMM card (max. 40 MB) [...]

FRU Removals and Replacements This section contains information about removals and replacements.  An electrostatic discharge (ESD) strap must be used to establish personal grounding. The system board is sensitive to, and can be damaged by, electrostatic discharge. Establish personal grounding by touching a ground point with one hand before touch[...]

2010 Rear Connector Door Remove the center latch .1/ ; then remove the rear connector door by flexing it .2/ . 2015 Foot To replace the foot:  Align the foot in the open position with one pivot in its hinge in the base cover  Press the other pivot point into position with your thumb or finger ThinkPad 755CD, 755CDV (9545) 351[...]

2020 Battery Pack  CD-ROM Drive (2030) Notes: 1. Be careful that the computer does not fall backward when the battery pack is removed. 2. When replacing the battery pack, check that the storage switch of the new battery is set to the on (|) position. Do not operate the storage switch of a battery that has been used and is going to be re-used. 3.[...]

2030 CD-ROM/Diskette Drive Note: Remove the CD-ROM/Diskette drive exactly as shown in the figure. Do not apply any extra force to the CD-ROM/Diskette drive when removing it. Warning: When replacing the CD-ROM/diskette drive, check that the standby battery is seated correctly to prevent damage to the drive. ThinkPad 755CD, 755CDV (9545) 353[...]

2040 Hard Disk Drive  CD-ROM Drive (2030)  Battery Pack (2020) Warning: Do not drop or apply any shock to the hard disk drive. The hard disk drive is sensitive to physical shock. Incorrect handling can cause damage it, and cause permanent loss of data on the hard disk. Before removing the hard disk drive, have the user make a backup copy of a[...]

2050 IC DRAM Card or DIMM Adapter  CD-ROM Drive (2030)  Battery Pack (2020) Note: One of the following combinations occupies the slot depending on the configuration.  IC DRAM card + IC DRAM card base  DIMMs on DIMM adapter If the IC DRAM Card is installed : Warning: The IC DRAM card is sensitive to physical shock. Incorrect handling of [...]

If the DIMM Adapter is installed : Press both locks at the same time and remove the DIMM. While holding the strap .A/ , pull the DIMM adapter toward the front to remove it. 356 IBM Mobile Systems HMM[...]

Notes: 1. If the IC DRAM cards or the DIMM are not installed and the base plate is installed instead of these cards, remove the plate as follows: a. Pinch the projection .A/ on the left side of the plate; then pull the plate slightly toward the front. b. Raise the rear portion of the plate and remove it. 2. When inserting the DIMM into either conne[...]

2060 Keyboard Spacer 358 IBM Mobile Systems HMM[...]

2080 Keyboard Unit  CD-ROM Drive (2030)  Battery Pack (2020) Loosen the three screws .2/ and .3/ , and push .4/ t o release the five top cover latches at the rear side of the system unit. When removing the screw covers .1/ , use a small screwdriver. ThinkPad 755CD, 755CDV (9545) 359[...]

The keyboard unit is connected to the system board with flexible cables. Remove the upper cover; then disconnect the cables to remove the keyboard unit as shown. To remove the top cover, do not latch the keyboard. Lower the keyboard and remove the top cover. Warning: Do not pull the keyboard cables. The keyboard cables will be damaged if the keyboa[...]

Step Location (Quantity) Length .2/ Top cover (1) 14 mm .3/ Top cover (2) 4 mm .6/ Top cover (1) 4 mm Note: Make sure you use the correct screw. ThinkPad 755CD, 755CDV (9545) 361[...]

2090 Status Indicator  CD-ROM Drive (2030)  Battery Pack (2020)  Keyboard Unit (2080) Warning: Do not pull the status indicator cable. The cable will be damaged if the status indicator is disconnected without releasing the latch in step .2/ . Note: When replacing the indicator, insert the flexible cable straight into the connector until th[...]

2100 Standby Battery and Front IR  CD-ROM Drive (2030)  Battery Pack (2020) Where: .A/ is the IR Cable. .B/ is the Standby Battery Cable. .C/ is the IR Lens. Note: When replacing the battery, make sure the battery are seated correctly. Make sure the IR lens .2/ is in the correct position by sliding it end to end. Safety Notice 2: Translation [...]

2110 Backup Battery  CD-ROM Drive (2030)  Battery Pack (2020) Safety Notice 4: Translation on page 10 The backup battery is a lithium battery and can cause a fire, explosion, or severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. D[...]

2115 Logic Assembly  CD-ROM Drive (2030)  Battery Pack (2020)  Hard Disk Drive (2040)  Keyboard Unit (2080)  Status Indicator (2090)  Standby Battery and Front IR (2100)  Backup Battery (2110) The screw .1/ is located at the rear bottom side. See next page. Note: When replacing the logic assembly, align the power-key slide hub [...]

Step Location (Quantity) Length .1/ Logic assembly (1) 4 mm .4/ Logic assembly (4) 8 mm Note: Make sure you use the correct screw. 366 IBM Mobile Systems HMM[...]

2120 Shield Assembly  CD-ROM Drive (2030)  Battery Pack (2020)  Hard Disk Drive (2040)  Keyboard Unit (2080)  Status Indicator (2090)  Standby Battery and Front IR (2100)  Backup Battery (2110)  Logic Assembly (2115) Step Location (Quantity) Length .1/ Shield assembly (3) 4 mm .2/ Shield assembly (3) 14 mm .3/ Shield assembl[...]

2125 Video Card or Rear IR  CD-ROM Drive (2030)  Battery Pack (2020)  Hard Disk Drive (2040)  Keyboard Unit (2080)  Status Indicator (2090)  Backup Battery (2110)  Standby Battery and Front IR (2100)  Logic Assembly (2115)  Shield Assembly (2120) The connector is located under .A/ . Do .4/ and .5/ after step .3/ to remove[...]

2130 DC/DC Card  CD-ROM Drive (2030)  Battery Pack (2020)  Hard Disk Drive (2040)  Keyboard Unit (2080)  Status Indicator (2090)  Backup Battery (2110)  Standby Battery and Front IR (2100)  Logic Assembly (2115)  Shield Assembly (2120)  Video Card or Rear IR (2125) ThinkPad 755CD, 755CDV (9545) 369[...]

2140 DSP Card  CD-ROM Drive (2030)  Battery Pack (2020)  Hard Disk Drive (2040)  Keyboard Unit (2080)  Status Indicator (2090)  Backup Battery (2110)  Standby Battery and Front IR (2100)  Logic Assembly (2115)  Shield Assembly (2120)  Video Card or Rear IR (2125)  DC-DC Card (2130) Remove the following:  Mini-Jac[...]

2150 Interposer Card  CD-ROM Drive (2030)  Battery Pack (2020)  Hard Disk Drive (2040)  Keyboard Unit (2080)  Status Indicator (2090)  Backup Battery (2110)  Standby Battery and Front IR (2100)  Logic Assembly (2115)  Shield Assembly (2120)  Video Card or Rear IR (2125)  DC-DC Card (2130)  DSP Card (2140) ThinkPa[...]

2160 System Board Assembly  CD-ROM Drive (2030)  Battery Pack (2020)  Hard Disk Drive (2040)  Keyboard Unit (2080)  Status Indicator (2090)  Backup Battery (2110)  Standby Battery and Front IR (2100)  Logic Assembly (2115)  Shield Assembly (2120)  Video Card or Rear IR (2125)  DC/DC Card (2130)  DSP Card (2140) ?[...]

2170 PCMCIA Slot Assembly  CD-ROM Drive (2030)  Battery Pack (2020)  Hard Disk Drive (2040)  Keyboard Unit (2080)  Status Indicator (2090)  Backup Battery (2110)  Standby Battery and Front IR (2100)  Logic Assembly (2115)  Shield Assembly (2120)  Video Card or Rear IR (2125)  DC/DC Card (2130)  DSP Card (2140) ?[...]

easy to remove. Make sure that the screw stand is correctly positioned when the slot is replaced. Do not replace the slot without the screw stand. Use the following table for reference when replacing parts. Step Location (Quantity) Length .1/ PCMCIA slot, upper (2) 4 mm .2/ PCMCIA slot, lower (2) 14 mm Note: Make sure you use the correct screw. 374[...]

2180 Processor Card  CD-ROM Drive (2030)  Battery Pack (2020)  Hard Disk Drive (2040)  Keyboard Unit (2080)  Status Indicator (2090)  Backup Battery (2110)  Standby Battery and Front IR (2100)  Logic Assembly (2115) Turn the system board upside down. Then remove any metal tape holding the card. ThinkPad 755CD, 755CDV (9545) [...]

To remove the processor card, gently lift the area shown by .A/ straight up. Do not pull the other areas. Note: If the processor card is not installed correctly, the computer may not turn on. Reinstall the card in this case. Use the following table for reference when replacing parts. Step Location (Quantity) Length .1/ Processor card assembly 14 mm[...]

2190 LCD Assembly  CD-ROM Drive (2030)  Battery Pack (2020)  Keyboard Unit (2080)  Status Indicator (2090) Note: When removing the LCD cables .1/ , pull the connector straight up. Incorrect handling can damage the connector. Use the following table for reference when replacing parts. Safety Notice 5: Translation on page 11 If the LCD br[...]

To Clean the LCD Gently wipe the LCD with a dry, soft cloth. Do not use alcohol or detergent to clean the LCD. To avoid damaging the LCD, do not scratch or apply any force to its surface. 2195 LCD Rear Cover (755CDV only) Slightly push out and release the latches .1/ . 1 1 Note: Do not touch the film .2/ on the rear cover while the cover is removed[...]

2200 Lower Shield Assembly  CD-ROM Drive (2030)  Battery Pack (2020)  Hard Disk Drive (2040)  Keyboard Unit (2080)  Status Indicator (2090)  Backup Battery (2110)  Standby Battery and Front IR (2100)  Logic Assembly (2115)  Shield Assembly (2120)  Video Card or Rear IR (2125)  DC/DC Card (2130)  DSP Card (2140) ?[...]

2210 Memory Card  CD-ROM Drive (2030)  Battery Pack (2020)  Hard Disk Drive (2040)  Keyboard Unit (2080)  Status Indicator (2090)  Backup Battery (2110)  Standby Battery and Front IR (2100)  Logic Assembly (2115)  Shield Assembly (2120)  Video Card or Rear IR (2125)  DC/DC Card (2130)  DSP Card (2140)  Interpo[...]

Locations Front View .1/ LCD .2/ Built-in Microphone .3/ Brightness Control .4/ Status Indicator See “Status Indicators” on page 344. .5/ External Input Device Connector .6/ Video-In Port .7/ Video-Out Port .8/ PCMCIA Slot .9/ Keyboard .1ð/ LCD and Keyboard Latch .11/ Click Button .12/ CD-ROM Drive .13/ Front Infrared Port .14/ Fn Key .15/ Tra[...]

Rear View .1/ Telephony Jack .2/ Microphone/Line-In Jack .3/ Headphone Jack .4/ Power Switch .5/ Power Jack .6/ Serial Connector .7/ Parallel Connector .8/ External-Display Connector .9/ Reset Switch .1ð/ Game Port .11/ System Expansion Connector A multimedia portable expansion unit, port replicator, or port replicator with PCMCIA can be connected[...]

Parts Listing 2 2 3 3 4 4 5 6 7 31 32 44 45 43 42 8 10 9 41 40 11 14 12 39 38 37 17 16 35 36 33 34 18 21 19 29 30 28 27 20 23 24 25 26 15 13 22 1a 1 ThinkPad 755CD, 755CDV (9545) 383[...]

System Unit (755CD/755CDV) Index Component 1 LCD Assembly (TFT) 85G1489 LCD Assembly front (755CDV) 85G1633 LCD Assembly rear cover (755CDV) 85G1630 2 Hinge Bracket, Right, Left 85G1894 3 Screw, Rubber Lid 85G1509 4 Hinge, Lid, Right/Left 85G1930 5 Top Cover (755CD) 85G1884 Top Cover (755CDV) 85G7476 6 Stand-off, Indicator 85G1929 7 Status Indicato[...]

Index Component Internal Microphone Cable 84G6559 Modem Connector Assembly, U.S. 85G1504 Modem Connector Assembly, EMEA 85G1505 Modem Connector Assembly, blank 85G6564 Wall Plug 85G2367 Head Phone 85G1529 PCMCIA Cartridge 84G1303 PCMCIA RF Cartridge 84G1304 Interface Cable, System - Keyboard 84G2531 Interface Cable, keyboard - Keypad 84G2532 Cable,[...]

Keyboard Arabic 84G6508 Belgian 84G6506 Canadian French 84G6514 Danish 84G6505 Dutch 84G6503 French 84G6499 German (Black) 84G6497 Greek 84G6512 Hebrew 84G6509 Italian 84G6501 Japanese 84G6515 Latin American 84G6513 Norwegian 84G6507 Portuguese 84G6510 Spanish 84G6504 Swedish 84G6502 Swiss/French 84G6500 Swiss/German 84G6498 Turkish 84G6511 U.K. En[...]

PSTN Cable Options Notes: 1. When you replace the AC Adapter or the Quick Charger with a new one, use the one for the country you are in even if the system is from different country. 2. The warranty for the system unit does not apply to all options. Austria 58G4386 Australia 58G4343 Belgium 58G4346 Denmark 58G4333 Finland 58G4334 France 58G4335 Ger[...]

Numeric Keypad Black Keypad Black Keyboard Accessories (Models 755x) Tools Belgian 95F5741 Canadian French 95F5466 Danish 95F5467 Dutch 95F5467 French 95F6313 German 95F6314 Greek 95F5467 Hebrew 95F5741 Icelandic 95F5467 Italian 95F6316 Japanese 79F6401 Norwegian 95F5467 Spanish 95F6315 Swedish/Finnish 95F5468 Swiss/French 95F5711 Swiss/German 95F5[...]

Power Cords 1 2 3 4 5 6 7 8 9 10 Warning: Use the power cord certified for your country. Country 30/40W 35W 1 Colombia, U.S., Venezuela 13F9959 25H2207 Japan, 2-pin 6454377 85G6665 Japan, 3-pin 65F0031 2 Hong Kong, Singapore, U.K. 14F0033 25H2215 3 France, Germany, Spain 13F9979 25H2209 4 Italy 14F0069 25H2223 5 Australia, New Zealand 13F9940 25H22[...]

390 IBM Mobile Systems HMM[...]

ThinkPad 755CE, 755CSE, 755CV, 755CX (9545) General Checkout . . . . . . . . . . . . . . . . 393 Memory Checkout . . . . . . . . . . . . . . 393 System Board and Processor Card Checkout . 395 Keyboard/Auxiliary Input Device Checkout . . . 396 TrackPoint III Checkout ........... 3 9 6 Diskette Drive Test ............. 3 9 7 Power Systems Checkout ..[...]

1130 DC/DC Card . . . . . . . . . . . . . 445 1140 DSP Card . . . . . . . . . . . . . . . 446 1150 Interposer Card and Rear IR ...... 4 4 7 1160 System Board Assembly ........ 4 4 8 1170 PCMCIA Slot Assembly ........ 4 4 9 1180 Processor Card . . . . . . . . . . . . 451 1190 LCD Assembly . . . . . . . . . . . . 453 1195 LCD Rear Cover (755CV only) [...]

General Checkout Use the following procedure as a guide for computer problems. Note: The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards or modified options can give false errors and invalid system responses. 1. Obtain the failing symptoms in as much detail as possible. 2. Verify the symptoms by attempting[...]

Memory errors can stop system operations, show error messages on the screen, or hang the system. The computer detects memory parity errors but does not correct them. Use the following procedure to isolate memory problems. Notes: a. Except Model 755CX, installing a non-parity memory card causes memory errors. Before you go to the next procedure, che[...]

If memory problems occur intermittently, use the loop option to repeat the test. When the test detects an error, an error log is printed on the printer connected to the parallel port. See “Error Log” on page 421 for more information. System Programs in Flash Memory: System setup programs and diagnostic tests are stored in Flash memory. Flash Me[...]

If above procedure does not correct the problem, go to “Undetermined Problems” on page 419. Keyboard/Auxiliary Input Device Checkout Remove the external keyboard if the internal keyboard is to be tested. If the internal keyboard does not work or an unexpected character appears, make sure that the three flexible cables extending from the keyboar[...]

The TrackPoint III does automatic compensations to adjust the pointer sensor. During this process, the pointer moves on the screen automatically for a short time. This self-acting pointer movement can occur when a slight, steady pressure is applied to the TrackPoint III pointer while the computer is powered on or while the system is running, or re-[...]

the drive to the computer's diskette drive connector directly, and test it again as FDD-1. If no errors occur at the FDD-1 position, the drive is not defective. Go to “Port Replicator Checkout” in “Common Devices Checkout” section to isolate the replicator problem. 7. If the drive is attached through an Expansion Unit, go to the servic[...]

AC adapter (40W) AC adapter (35W)  If the voltage is correct, replace the system board. If the problem is not corrected, go to “Undetermined Problems” on page 419.  If the voltage is not correct, go to the next step. 2. Unplug the AC Adapter cable from the ac power outlet and wait five minutes or longer to allow the over voltage protectio[...]

2. Remove the battery pack and measure the voltage between battery terminals 1 ( + ) and 4 ( − ). See the following figure. Ni-MH Battery Pack (T) Storage Switch Terminal Voltage (V dc) / Signal 1 + 8.0 to + 16.0 2 Send 3 Thermal 4 Ground ( − ) 5 NC 6 NC 7 NC 400 IBM Mobile Systems HMM[...]

Li-Ion Battery Pack Note: Li-ion battery is optional for Model 755CV and standard for Model 755CX. (T) Note: Signal lines, not used in these steps, are used for communication between the system and the battery. The storage switch is used to control the power to the internal microprocessor of the battery. The storage switch should be set to off (0) [...]

the charging circuit is working correctly, replace the battery pack. Checking the Car-Battery Adapter Note: There are several types of adapters but the checkout procedure is the same for both of them. 1. Unplug the Car-Battery Adapter cable from the computer. 2. Plug the Car-Battery Adapter into the cigarette lighter socket. Note: If the adapter is[...]

Checking the Travel Quick Charger 1. Ensure that the battery pack is operating correctly. (See “Checking the Battery Pack” on page 399.) 2. Connect the power cord to the Travel Quick Charger and the other end to an ac power outlet. Ensure that the power-on indicator is on.  If the power-on indicator does not turn on, check the power cord for[...]

3. Remove the standby battery. (Refer to “1100 Standby Battery and Front IR” on page 438 to remove the battery.) 4. Measure the voltage of the standby battery.  If the voltage between red and black is 3.5 V dc or greater, the voltage is correct. Go to Step 10 to verify standby battery operation.  If the voltage is less than 3.5 V dc, go t[...]

Note: Removing and installing the battery pack during suspend mode should be done within one minute. The resume operation must start. If the resume operation does not work, switching of power from the battery pack to standby battery will not be correct. Replace the DC/DC card. If replacing the DC/DC card does not resolve the problem, replace the sy[...]

Events that cause the computer to enter the suspend mode.  Suspend mode is requested by pressing the Fn key (Fn + F4).  The LCD is closed.  The keyboard is opened.  The specified time has elapsed from the last operation with the keyboard, mouse, hard disk drive, parallel connector, diskette drive, or the AC Adapter is plugged in. The ti[...]

When power is turned on, the hibernation history of the boot record on the hard disk is recognized and system status is restored from the hard disk to resume operation. Port Replicator Power Overload: If intermittent power shut-downs occur while using two or more PCMCIA devices with a port replicator, suspect an over-current problem. Some PCMCIA de[...]

Symptom-to-FRU Index The Symptom-to-FRU Index lists the symptoms and errors and the possible causes. The most likely cause is listed first. Note: Perform the FRU replacement or actions in the sequence shown in the “FRU/Action” columns. If a FRU did not solve the problem, put the original part back in the computer. Do not replace a non-defective[...]

Symptom/Error FRU/Action 173 (Configuration data were lost.) 1. Select OK in the error screen; then set time and date . 2. Backup Battery 3. System Board 174 (Perform “Checking the Installed Devices List” on page 422 before changing any FRUs.) 1 . Check Device Configuration. 2. System Board 3. Diskette Drive Assembly 4. Hard Disk Drive Assembly[...]

Symptom/Error FRU/Action 301, 303, 304, 305, 3XX 1 . Go to “Keyboard/Auxiliary Input Device Checkout” on page 396. 2. Keyboard 3. Video Card 4. External Numeric Keypad 5. External Keyboard 6. Keyboard/Mouse Cable 7. System Board 601, 6XX 1. Go to “Diskette Drive Test” on page 397. 2. Diskette Drive Assembly 3. Diskette 4. System Board 602 ([...]

Symptom/Error FRU/Action 861X (Pointing device error when TrackPoint III is enabled.) 1. Reseat the keyboard Track Point III cable at the E-Video card . See “1080 Keyboard Unit” on page 435. 2. Keyboard 3. External Mouse 4. System Board I9990301 I9990302 I9990305 1. Reseat the boot device. 2. Check the startup sequence for the correct boot devi[...]

Note: The device ID and error codes are used to indicate the detail portion of the FRU that caused the error. If replacing a FRU does not correct a problem, see the Device ID or error code from the previous failure. If they have changed, the cause might be that the new FRU is defective or that the FRU was incorrectly installed. If the problem remai[...]

No Beep Symptoms Symptom/Error FRU/Action No beep, power-on indicator not on, and a blank LCD during POST. 1. Go to “Power Systems Checkout” on page 398. 2. System Board 3. DC/DC Card 4. Power sources No beep, power-on indicator on, and a blank LCD during POST. 1 . System Board 2. DC/DC Card 3. Processor Card No beep, power-on indicator on, and[...]

Symptom/Error FRU/Action  LCD screen unreadable, or  Characters missing pels, or  Screen abnormal, or  Wrong color displayed. 1. See note for “LCD Related Symptoms.” 2. Reseat all LCD connectors 3. LCD Assembly 4. System Board 5. Interposer Card LCD has extra horizontal or vertical lines displayed. LCD Assembly Model 755CV Symptoms [...]

Symptom/Error FRU/Action The remote control does not work. 1. Check that two AAA alkaline batteries are installed in the remote control. 2. Check that two AAA alkaline batteries in the remote control are at their normal energy (voltage) level. 3. Enable the IR port of the computer with the ThinkPad Features program. (Disable the serial port at this[...]

Keyboard/TrackPoint III Related Symptoms Symptom/Error FRU/Action Keyboard (one or more keys) does not work. 1. Reseat the three keyboard cables. 2. Keyboard 3. Interposer Card 4. System Board TrackPoint III does not work. 1. Go to “TrackPoint III Checkout” on page 396. 2. Keyboard 3. Interposer Card 4. System Board Pointer moves automatically [...]

Function/Audio Related Symptoms Symptom/Error FRU/Action The system will not suspend or resume by opening or closing the keyboard. 1. Go to “Suspend Mode” on page 405 and check that the computer can enter suspend mode. 2. DC/DC Card 3. Interposer Card 4. System Board The system will not suspend or resume by opening or closing the LCD. 1. Go to [...]

Infrared Related Symptoms Symptom/Error FRU/Action Unable to communicate using the Infrared (IR) Port. 1. Make sure the setup for the IR is correct. 2. Make sure there are no fluorescent lights near the computer. The computer may receive electrical noise from the fluorescent light. 3. Run the advanced diagnostic test. If an error occurs and a FRU c[...]

3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist. Undetermined Problems You are here because the diagnostic tests did not identify which adapter or device failed, installed devices are incorrect, a short circuit is suspected, or the system is inoperative. Follow the procedures be[...]

Related Service Procedures This section provides information about the following:  “Status Indicators”  “How to Run the Diagnostics” on page 421  “Error Log” on page 421  “Checking the Installed Devices List” on page 422  “Password Combinations” on page 422  “How to Run the Low Level Format” on page 423 [...]

Symbol Color Meaning Green Computer in suspend mode Blinking green Computer resuming normal mode Green Computer powered on How to Run the Diagnostics Use either the TrackPoint III or the cursor move keys to interact with the tests. The Enter key works the same as selecting the OK icon to reply OK. 1. Press and hold the F1 key; then power-on the com[...]

4. The error log appears. 5. To exit the screen, select the cancel icon or press Esc. The error log is not saved when system power is powered-off. Reset Pushbutton The reset pushbutton resets the system and forces the power to be powered-off . Use this pushbutton when the power is not completely off or the system is hung. See “Rear View” on pag[...]

How to Run the Low Level Format Do the following to format the hard disk. Note: Make sure the drive address to be formatted is correct. This procedure will erase all information on the disk. 1. Power-off the computer. 2. Insert the ThinkPad 755Ce hardware maintenance diskette into diskette drive A and power-on the computer. (You can use this mainte[...]

How To Run the Keyboard Diagnostics Do the following to run the keyboard test. 1. Go to the advanced diagnostic screen menu by pressing Ctrl + A in the Easy-Setup menu. 2. Go to the keyboard diagnostic test menu by pressing Ctrl + K . 3. Check that when each key is pressed, the key position on the keyboard layout on the screen changes to a black sq[...]

Feature Description IR Two IR ports PCMCIA One Type-III or two Type-II ThinkPad 755CE, 755CSE, 755CV, 755CX (9545) 425[...]

FRU Removals and Replacements This section contains information about removals and replacements.  An electrostatic discharge (ESD) strap must be used to establish personal grounding. The system board is sensitive to, and can be damaged by, electrostatic discharge. Establish personal grounding by touching a ground point with one hand before touch[...]

1010 Rear Connector Door Remove the center latch .1/ ; then remove the rear connector door by flexing it .2/ . 1015 Foot To replace the foot:  Align the foot in the open position with one pivot in its hinge in the base cover  Press the other pivot point into position with your thumb or finger ThinkPad 755CE, 755CSE, 755CV, 755CX (9545) 427[...]

1020 Battery Pack Notes: 1. Be careful that the computer does not fall backward when the battery pack is removed. 2. When replacing the battery pack, check that the storage switch of the new battery is set to the on (|) position. Do not operate the storage switch of a battery that has been used and is going to be re-used. 3. Check that the keyboard[...]

1030 Diskette Drive  Battery Pack (1020) Note: Remove the diskette drive exactly as shown in the figure. Do not apply any extra force to the top surface of the diskette drive. Make sure the media is removed, or the media and the drive may be damaged. Warning: When replacing the diskette drive, check that the backup battery and standby battery ar[...]

1040 Hard Disk Drive  Battery Pack (1020) Notes: 1. Do not drop or apply any shock to the hard disk drive. The hard disk drive is sensitive to physical shock. Incorrect handling can cause damage it, and cause permanent loss of data on the hard disk. Before removing the hard disk drive, have the user make a backup copy of all the information on t[...]

1050 IC DRAM Card or DIMM Adapter  Battery Pack (1020)  Diskette Drive (1030) Note: One of the following combinations occupies the slot depending on the configuration.  IC DRAM card + IC DRAM card base  DIMMs on DIMM adapter If the IC DRAM Card is installed: Warning: The IC DRAM card is sensitive to physical shock. Incorrect handling of[...]

If the DIMM Adapter is installed: Press both locks at the same time and remove the DIMM. While holding the strap .A/ , pull the DIMM adapter toward the front to remove it. 432 IBM Mobile Systems HMM[...]

Notes: 1. If the IC DRAM cards or the DIMM are not installed and the base plate is installed instead of these cards, remove the plate as follows: a. Pinch the projection .A/ on the left side of the plate; then pull the plate slightly toward the front. b. Raise the rear portion of the plate and remove it. 2. When inserting the DIMM into either conne[...]

1070 Diskette Drive Bezel  Battery Pack (1020)  Diskette Drive (1030) Insert a coin between the diskette drive bezel and the computer as shown .1/ and push the bezel from the bottom of the computer .2/ to remove it. 434 IBM Mobile Systems HMM[...]

1080 Keyboard Unit  Battery Pack (1020) Loosen the three screws .2/ , and push .3/ to release the four top cover latches at the rear side of the system unit. When removing the screw covers .1/ , use a small screwdriver. ThinkPad 755CE, 755CSE, 755CV, 755CX (9545) 435[...]

The keyboard unit is connected to the system board with flexible cables. Warning: Do not pull the keyboard cables. The keyboard cables can be damaged if the keyboard is disconnected without releasing the three latches .5/ . EMI Spring Plate Notes: 1. When replacing the keyboard, check that the three cables are clean, and inserted straight and fully[...]

1090 Status Indicator  Battery Pack (1020)  Keyboard Unit (1080) Warning: Do not pull the status indicator cable. The cable can be damaged if the status indicator is disconnected without releasing the latch in step .2/ . Note: When replacing the indicator, insert the flexible cable straight into the connector until the head of the cable stops[...]

1100 Standby Battery and Front IR  Battery Pack (1020)  Diskette Drive (1030) Where: .A/ is the IR Cable. .B/ is the Standby Battery Cable. .C/ is the IR Lens. Note: When replacing the battery, make sure the battery is seated correctly. Make sure the IR Lens .2/ is in the correct position by sliding it end to end. Safety Notice 2: Translation[...]

1110 Backup Battery  Battery Pack (1020) Safety Notice 4: Translation on page 10 The backup battery is a lithium battery and can cause a fire, explosion, or severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as[...]

1115 Logic Assembly  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1040)  Keyboard Unit (1080)  Status Indicator (1090)  Standby Battery and Front IR (1100) The screw .1/ is located at the rear bottom side. See next page. 440 IBM Mobile Systems HMM[...]

When Replacing Logic Assembly When replacing the logic assembly, align the power-key slide hub with the power-switch actuator by moving the power-key in the direction of the arrow .1/ . See the large circle in the figure. Before tightening any screws, check that the power-switch operates correctly. Step Location (Quantity) Length .1/ Bottom cover ([...]

1120 Shield Assembly  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1040)  Keyboard Unit (1080)  Status Indicator (1090)  Standby Battery and Front IR (1100)  Backup Battery (1110)  Logic Assembly (1115) See the next page when you replace the parts. 442 IBM Mobile Systems HMM[...]

The microphone cable can pick up electrical noise if the cable path is incorrect. Do the following to place the cable in its correct position. 1. Position the cable as shown. 2. Install the shield assembly. 3. Move the end of cable to the right. The following figure shows the final path of the cable. Make sure the cable is not positioned in any sha[...]

Use the following table for reference when replacing parts. Step Location (Quantity) Length .1/ Shield cover (1) 4 mm .2/ Shield cover (2) 6 mm .3/ Shield cover (1) 14 mm .4/ Shield cover (1) Flat head Note: Make sure you use the correct screw. 444 IBM Mobile Systems HMM[...]

1130 DC/DC Card  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1040)  Keyboard Unit (1080)  Status Indicator (1090)  Standby Battery and Front IR (1100)  Backup Battery (1110)  Logic Assembly (1115)  Shield Assembly (1120) ThinkPad 755CE, 755CSE, 755CV, 755CX (9545) 445[...]

1140 DSP Card  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1040)  Keyboard Unit (1080)  Status Indicator (1090)  Standby Battery and Front IR (1100)  Backup Battery (1110)  Logic Assembly (1115)  Shield Assembly (1120)  DC-DC Card (1130) Remove the following:  Mini-Jack Holder  Modem Guide  Mo[...]

1150 Interposer Card and Rear IR  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1040)  Keyboard Unit (1080)  Status Indicator (1090)  Standby Battery and Front IR (1100)  Backup Battery (1110)  Logic Assembly (1115)  Shield Assembly (1120)  DC-DC Card (1130)  DSP Card (1140) Where: .A/ is the Rear IR.[...]

1160 System Board Assembly  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1040)  Keyboard Unit (1080)  Status Indicator (1090)  Standby Battery and Front IR (1100)  Backup Battery (1110)  Logic Assembly (1115)  Shield Assembly (1120)  DC/DC Card (1130)  DSP Card (1140)  Interposer Card and Rear IR [...]

1170 PCMCIA Slot Assembly  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1040)  Keyboard Unit (1080)  Status Indicator (1090)  Standby Battery and Front IR (1100)  Backup Battery (1110)  Logic Assembly (1115)  Shield Assembly (1120)  DC/DC Card (1130)  DSP Card (1140)  Interposer Card and Rear IR ([...]

easy to remove. Make sure that the screw stand is correctly positioned when the slot is replaced. Do not replace the slot without the screw stand. Use the following table for reference when replacing parts. Step Location (Quantity) Length .1/ PCMCIA slot, upper (2) 4 mm .2/ PCMCIA slot, lower (2) 14 mm Note: Make sure you use the correct screw. 450[...]

1180 Processor Card  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1040)  Keyboard Unit (1080)  Status Indicator (1090)  Standby Battery and Front IR (1100)  Backup Battery (1110)  Logic Assembly (1115) Turn the system board upside down. Then remove any metal tape holding the card. ThinkPad 755CE, 755CSE, 755C[...]

To remove the processor card, gently lift the area shown by .A/ straight up. Do not pull the other areas. Note: If the processor card is not installed correctly, the computer may not turn on. Reinstall the card in this case. Use the following table for reference when replacing parts. Step Location (Quantity) Length .1/ Processor card assembly 14 mm[...]

1190 LCD Assembly  Battery Pack (1020)  Keyboard Unit (1080)  Status Indicator (1090) Note: When removing the LCD cables .1/ , pull the connector straight up. Incorrect handling can damage the connector. Use the following table for reference when replacing parts. Step Location (Quantity) Length .3/ LCD hinge (4) 4 mm Note: Make sure you us[...]

Safety Notice 5: Translation on page 11 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes. Seek medical care if any symptoms from the fluid are present after washing. Note: To clean the LCD, gently wipe the LCD with a dry, soft cloth. Do n[...]

1195 LCD Rear Cover (755CV only) Slightly push out and release the latches .1/ . 1 1 Note: While the cover is removed from the LCD, do not touch the film ( .2/ ) on the rear cover. 2 ThinkPad 755CE, 755CSE, 755CV, 755CX (9545) 455[...]

1200 Lower Shield Assembly  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1040)  Keyboard Unit (1080)  Status Indicator (1090)  Standby Battery and Front IR (1100)  Backup Battery (1110)  Logic Assembly (1115)  Shield Assembly (1120)  DC/DC Card (1130)  DSP Card (1140)  Interposer Card and Rear IR [...]

1210 Memory Card  Battery Pack (1020)  Diskette Drive (1030)  Hard Disk Drive (1040)  Keyboard Unit (1080)  Status Indicator (1090)  Standby Battery and Front IR (1100)  Backup Battery (1110)  Logic Assembly (1115)  Shield Assembly (1120)  DC/DC Card (1130)  DSP Card (1140)  Interposer Card and Rear IR (1150) [...]

Locations Front View .1/ LCD .2/ Built-in Microphone .3/ Brightness Control .4/ Status Indicator See “Status Indicators” on page 420. .5/ External Input Device Connector .6/ PCMCIA Slot .7/ PCMCIA Release Lever .8/ Keyboard .9/ LCD and Keyboard Latch .1ð/ Click Button .11/ Diskette-Eject Button .12/ Diskette Drive .13/ Front Infrared Port .14/[...]

Rear View .1/ Telephony Jack .2/ Microphone/Line-In Jack .3/ Headphone Jack .4/ Power Switch .5/ Power Jack .6/ Serial Connector .7/ Parallel Connector .8/ External-Display Connector .9/ Reset Switch .1ð/ Rear Infrared Port .11/ System Expansion Connector A multimedia portable expansion unit, port replicator, or port replicator with PCMCIA can be [...]

Parts Listing 1a 1a 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 14 14 13 13 40 40 12 12 15 15 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 41 41 25 25 26 26 27 27 28 28 29 29 43 43 31 31 30 30 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 16 16 42 42 460 IBM Mobile Systems HMM[...]

System Unit (755CE/755CSE/755CV/755CX) Index Component 1 LCD Assembly (755CE) 85G1489 LCD Assembly (755CSE) 85G1490 LCD Assembly, (755CX TFT-VGA) 85G1489 LCD Assembly, (755CX TFT-SVGA) 85G8546 LCD Assembly, Front (755CV) 85G1633 1 a LCD Assembly, Rear cover (755CV) 85G1630 2 Hinge Bracket, Right, Left 85G1507 3 Screw Rubber Lid 85G1509 4 Hinge, Lid[...]

Index Component 35 Battery Terminal (755CE, 755CSE) 84G6556 Battery Terminal (755CV, 755CX) 85G8568 36 DSP Card Assembly 85G1140 37 DC/DC Card (755CE, 755CSE) 85G1500 DC/DC Card (755CV, 755CX) 85G8551 38 Speaker 84G6557 39 Diskette Drive (4-mode) 66G5060 Diskette Drive (3-mode) 84G2269 40 Diskette Drive Removal Strap 66G5123 41 Keyboard Security Pl[...]

Keyboard Arabic 84G6508 Belgian 84G6506 Canadian French 84G6514 Danish 84G6505 Dutch 84G6503 French 84G6499 German (Black) 84G6497 Greek 84G6512 Hebrew 84G6509 Italian 84G6501 Japanese 84G6515 Latin American 84G6513 Norwegian 84G6507 Portuguese 84G6510 Spanish 84G6504 Swedish 84G6502 Swiss/French 84G6500 Swiss/German 84G6498 Turkish 84G6511 U.K. En[...]

Common/Option Parts List Miscellaneous Parts DAA Assembly Miscellaneous Parts Kit 84G6558 (Includes Modem guide; modem lever; DC-IN holder; memory spacer; mini-jack holder; back-up battery holder; suspend-switch holder) Screw Kit 84G6560 (Includes 20-2.5 x 6 mm; 10-2.5 x 4 mm; 10-2.5 x 8 mm; 10-2.5 nut mm; 10-hex stud bus; 10-washer bus; 10-2.5 x 8[...]

PSTN Cable Options Notes: 1. When you replace the AC Adapter or the Quick Charger with a new one, use the one for the country you are in even if the system is from different country. 2. The warranty for the system unit does not apply to all options. Austria 58G4386 Australia 58G4343 Belgium 58G4346 Denmark 58G4333 Finland 58G4334 France 58G4335 Ger[...]

Numeric Keypad Black Keypad Black Keyboard Accessories (Models 755x) Tools Belgian 95F5741 Canadian French 95F5466 Danish 95F5467 Dutch 95F5467 French 95F6313 German 95F6314 Greek 95F5467 Hebrew 95F5741 Icelandic 95F5467 Italian 95F6316 Japanese 79F6401 Norwegian 95F5467 Spanish 95F6315 Swedish/Finnish 95F5468 Swiss/French 95F5711 Swiss/German 95F5[...]

Power Cords 1 2 3 4 5 6 7 8 9 10 Warning: Use the power cord certified for your country. Country 30/40W 35W 1 Colombia, U.S., Venezuela 13F9959 25H2207 Japan, 2-pin 6454377 85G6665 Japan, 3-pin 65F0031 2 Hong Kong, Singapore, U.K. 14F0033 25H2215 3 France, Germany, Spain 13F9979 25H2209 4 Italy 14F0069 25H2223 5 Australia, New Zealand 13F9940 25H22[...]

468 IBM Mobile Systems HMM[...]

Common Devices Checkout External Diskette Drive Test ........... 4 7 0 External Display Self-Test ............ 4 7 0 External Keyboard/Auxiliary Input Device Checkout 471 Fax/Modem Checkout . . . . . . . . . . . . . . 472 Printer Checkout . . . . . . . . . . . . . . . . 474 Port Replicator Checkout ............ 4 7 5 TrackPoint II Checkout ........[...]

External Diskette Drive Test Use the following procedure to isolate the diskette problem to a controller, drive or diskette. A scratch, write-enabled 2HD diskette is required. 1. Select the icon FDD on the TEST MENU . By doing this, the controller test and the drive read/write test run. If the controller test detects an error, FRU code 10 appears. [...]

 You should be able to vary the screen intensity by adjusting the contrast and brightness controls.  The screen should be white or light gray, with a black margin (test margin) on the screen. Note: The location of the test margin varies with the type of display. The test margin might be on the top, bottom, or one or both sides. If you do not [...]

Fax/Modem Checkout 001 – Power-off the computer. – Ensure that the modem is installed correctly. – If the modem never worked in customer mode, ensure that all drivers are loaded correctly onto the computer. – Ensure that the communication program is supported on the computer. – Ensure that the public switch telephone network (PSTN) cable [...]

006 (continued) – Have the customer transmit a call. WAS THE CALL TRANSMITTED SUCCESSFULLY? Yes No 007 Go to Step 011. 008 – Have the customer receive an incoming call on the modem. WAS THE INCOMING CALL RECEIVED? Yes No 009 Go to Step 014. 010 The diagnostic tests have completed successfully. If you still suspect a problem that is not software[...]

(CONTINUED) 016 Have the telephone line checked. Printer Checkout 1. Make sure the printer is correctly connected and is powered-on. 2. Run the printer self-test. If the printer self-test does not run correctly, the problem is in the printer. Refer to the printer service manual. If the printer self-test runs correctly, do the following. 1. Verify t[...]

Port Replicator Checkout Use the following procedure to isolate a port replicator problem. A port replicator attaches to the system expansion connector at the rear of the computer. 1. Power-off the computer. 2. Remove the failing devices from the replicator. 3. Unplug the AC adapter from the replicator, if attached. 4. Remove the port replicator fr[...]

TrackPoint II Checkout  If the TrackPoint II does not work, check the configuration. If the configuration of the TrackPoint II is set to Disabled o r Off , change it to Enable or On . If the problem remains, continue. Note: TrackPoint II automatically compensates to adjust the pointer sensor. This causes the pointer to move slightly on the scree[...]

TV Tuner The TV Tuner Pack (hereafter called TV Tuner) is an option for watching TV programs or videos on the IBM TFT color notebook computer. The computer changes to TV reception when the removable diskette drive is replaced with the TV Tuner. The TV screen and normal computer display are easily switched by using the Hot key on the front panel of [...]

Icons Functions .8/ Function Key Enters the mode to change the value of each function, such as TV channel or color contrast. (See “Using the Function Key” on page 479.) .9/ TV/EXT Switch Switches the TV mode or external video mode. .1ð/ Volume Knob Controls the speaker volume. .11/ Audio-In Jack Connects the audio-in connector of the AV cable.[...]

Using the Function Key: Each time you press the Function key ( ), one of the following messages (called On-Screen Message ) appears at the top left corner of the LCD. The changed values are automatically saved when you return to the “TV Channel” On-Screen message. The values are not saved when you power-off the TV Tuner without returning to thi[...]

Power-on the TV Tuner: Use the ThinkPad Features program or PS2.EXE. to power-on the TV Tuner; then power-on the internal device in the diskette drive compartment. Warning If power for the internal device is turned off when the TV Tuner is set up, nothing appears on the LCD display. Turn on power for the TV Tuner again.  If you are using DOS, do[...]

Troubleshooting The following table shows what to do to solve problems when the TV Tuner does not work correctly. Problem Probable Cause The TV Tuner does not operate. (No picture or sound)  Computer is not powered on.  Computer is in suspend mode.  Volume control of the TV Tuner or computer is not adjusted correctly.  The power for the[...]

482 IBM Mobile Systems HMM[...]

Common Parts Listing This section contains FRUs common to most IBM portable, laptop, and notebook computers. External Diskette Drives 5.25-Inch Diskette Drive: 360KB External (4869-001) 72X6759 360KB External (4869-501) 72X6768 1.2MB External (4869-002) 15X7993 1.2MB External (4869-502) 15X7994 5.25-Inch Drive Adapter 72X6757 5.25-Inch Drive Adapte[...]

SCSI Adapters, Terminators, Cables SCSI Adapter/A (without Cache) 85F0002 SCSI Internal Cable 64F4127 SCSI Adapter/A (with Cache) 85F0063 Terminator, External (for 85F0063) 33F8464 Terminator, Internal (for 85F0063) 34F0025 Terminator, Internal (for 85F0002) 57F2870 SCSI Fast Adapter (16 bit) 92F0330 SCSI External Cable (for 92F0330) 32G4089 SCSI I[...]

Optional Enhanced Keyboards (101/102 Key) Keybutton Kits (101/102 Key) Japanese Keyboard Type 2 (106 Key, DBCS Support) Space-Saving Keyboards (84/85 Key) with PS/2 Style Cable 59G7980 with AT Style Cable 59G7981 with 25mm PS/2 Trackball 59G7982 with 25mm Serial Trackball 59G9757 Keybutton Kits (R), Belgian 1392033 Keybutton Kits (R), Canadian Fren[...]

Display Power Cords 1 2 3 4 5 6 7 8 9 10 Index Country 1 Colombia, U.S., Venezuela 6952300 Colombia, U.S., Venezuela 62X1045 2 Hong Kong, Singapore, U.K. 14F0033 3 France, Germany, Spain 13F9979 4 Italy, Chile 14F0069 5 Australia, New Zealand, New Guinea, 13F9940 Papua 6 Denmark 13F9997 7 Israel 14F0087 8 Bangladesh, Pakistan, South Africa, 14F0015[...]

Element Exchange Displays 8503 12-Inch Monochrome Display 110/120 V ac 68X3045 220/240 V ac (No. Hemisphere) 68X3046 220/240 V ac (So. Hemisphere) 72X7878 Tilt/Swivel Stand 68X3061 8504 12-Inch Monochrome Display 110/120 or 220/240 V ac (Universal) 44F9807 220/240 V ac (No. Hemisphere) 44F9808 220/240 V ac (So. Hemisphere) 44F9809 Tilt/Swivel Stand[...]

488 IBM Mobile Systems HMM[...]

Miscellaneous Information Acronyms, Abbreviations and Terms Term Information ACPA/A Audio Capture and Playback Adapter ADP Automatic Data Processing Alt Alternate ANSI American National Standards Institute ARTIC A Real Time Interface Coprocessor ASCII American National Standard Code for Interface Interchange AT Advanced Technology (as in AT Bus) AV[...]

Term Information LAN Local Area Network LBA Local Block Address LTB Local Transfer Bus LUN Logical Unit Number (as in SCSI) MAP Maintenance Analysis Procedure MCGA Modified Color Graphics Adapter (320 x 200 x 256) MCA Micro Channel Architecture (bus structure) MHz Mega hertz (millions of cycles per second) MIDI Musical Instrument Digital Interface [...]

Send Us Your Comments! We want to know your opinion about this manual (part number 30H2357). Your input will help us to improve our publications. Please photocopy this survey, complete it, and then fax it to IBM HMM Survey at 919-543-8167 (USA) . Name Phone Number 1. Do you like this manual? Ø Yes Ø N o 2. What would you like to see added, change[...]

Do You Need Technical References? We have a wide range of hardware technical references that provide in-depth information about IBM personal computer products. Our Technical Reference Library includes information about:  Micro Channel, Setup, and Subsystem Control Block architectures  Common interfaces (including microprocessors, system timer[...]

Problem Determination Tips Due to the variety of hardware and software combinations that can be encountered, use the following information to assist you in problem determination. If possible, have this information available when requesting assistance from Service Support and Engineering functions.  Machine type and model  Processor or hard di[...]

Phone Numbers, U.S. and Canada Before you place a call to the Support Center, refer to “Problem Determination Tips” on page 493. U.S. Authorized Dealers or Servicers U.S. Customers and Helpware Subscribers Number Information 919-517-0001 Bulletin Board Service - PC Company 800-937-3737 IBM Business Partner Education 800-426-2472 IBM Customer En[...]

U.S. Customers and Helpware Subscribers IBM Canada Customer and Servicer Support Number Information 303-924-4125 Parts Information 800-284-5933 Prodigy ** Service (link problems) 914-962-0310 Prodigy User Questions 800-237-4824 PS/2 Trade-In Program PS/2 Loan for Learning PS/2 Lease from IBM Credit 800-742-2943 Solution Validation Lab 800-547-1283 [...]

IBM Canada Customer and Servicer Support Number Information 800-663-7662 Lexmark Product Information 800-263-2769 Parts Orders, Exchange or Emergency 416-443-5808 (Fax) Parts Regular Orders, Exchange 416-443-5755 Parts Orders, Inquiries 514-938-3022 PC Co Bulletin Board - Montreal 905-316-4255 PC Co Bulletin Board - Toronto 604-664-6464 PC Co Bulle[...]

Notices References in this publication to IBM products, programs, or services do not imply that IBM intends to make these available in all countries in which IBM operates. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used. Subject to IBM’s valid intel[...]

IBM  Part Number: 30H2357 Printed in U.S.A. S82G-15ð2-ð3[...]