Apple WS 7250/120 manuale d’uso

Service Source K Po wer Macintosh 7200 Series/WS 7250 Power Macintosh 7200/75, 7200/90, 7200/120 and WS 7250/120[...]

Service Source K Basics Po wer Macintosh 7200 Series/ WS 7250[...]

Basics Overview - 1 Overview The chassis design of the Power Macintosh 7200 Series and WS 7250 computers allows you to access the logic board and its components without having to remove the power supply or any drives. This flexible design makes these computers easier to service and upgrade. Features of the Power Macintosh 7200 Series include • A [...]

Basics Overview - 2 • AppleCD™ 600i or 1200i CD-ROM drive • CD-quality stereo sound in/out • Optional PC Compatibility Card (Power Macintosh 7200/120) • Mac™ OS system software 7.5.2 (7200/75 and 7200/90), system software7.5.3 (7200/120), and system software7.5.3 Revision 2 (7200/120 8x-CD) Note : VRAM expansion works as follows: 1 MB o[...]

Basics Overview - 3 • Three PCI expansion slots • SCSI DMA bus that supports up to four external and three internal SCSI devices • Built-in AAUI and 10BASE-T Ethernet support • Support for AppleTalk and TCP/IP networking protocols • Two GeoPort serial ports • 1.2 GB or 2 GB hard drive • AppleCD™ 600i or 1200i CD-ROM drive • 16-bit[...]

Basics Overview - 4 P ower Macintosh 7200 and WS 7250 Computer[...]

Basics Configurations - 5 Configurations The Power Macintosh 7200 Series computers come standard with • 75, 90, or 120 MHz PowerPC 601 microprocessor • 8 or 16 MB DRAM • 500 MB or 1.2 GB hard drive • AppleCD 600i CD-ROM (7200/75, 7200/90, and 7200/120) or 1200i CD-ROM (7200/120 8x-CD) • 1 MB of VRAM soldered to the logic board The WS 7250[...]

Basics PowerPC 601 Microprocessor - 6 PowerPC 601 Microprocessor The Power Macintosh 7200 Series and WS 7250 computers feature the PowerPC 601 RISC microprocessor. Features of this microprocessor include • Full RISC processor architecture • 32-bit addressing • 64-bit data bus • Built-in FPU • 32K cache for data and instructions • Intern[...]

Basics Peripheral Component Interconnect (PCI) - 7 Peripheral Component Interconnect (PCI) The Power Macintosh 7200 Series and WS 7250 computers offer a Peripheral Component Interconnect (PCI) expansion bus. Because the PCI bus is an industry standard, most existing PCI 2.0-compliant cards (with the addition of a Mac OS-specific software driver) wi[...]

Basics Dual In-Line Memory Modules (DIMMs) - 8 Dual In-Line Memory Modules (DIMMs) The Power Macintosh 7200 Series and WS 7250 computers use DRAM Dual In-Line Memory Modules (DIMMs) instead of DRAM SIMMs. Whereas SIMMs have 72 pins, DIMMs have 168 pins. The extra pins provide a 64-bit data path, compared to a 32-bit data path for SIMMs. In addition[...]

Basics Memory Configurations - 9 Memory Configurations The Power Macintosh 7200 and WS 7250 logic boards have four DRAM DIMM slots, each with a 64-bit data bus. You can increase the computer’s DRAM to a total of 256 MB using 5- volt, 64-bit-wide, 168-pin fast-paged mode, 70 ns DIMMs. Note: These computers do not have any main memory soldered to t[...]

Basics Memory Configurations - 10 Note DIMMs purchased from different manufacturers can be paired; However, Apple recommends that you use DIMMs of the same size and speed. The drawing on the next page illustrates where the DRAM slots are located on the Power Macintosh 7200 Series/WS 7250 logic boards and how they are numbered. DRAM can be installed[...]

Basics Memory Configurations - 11 Figure: DRAM DIMM Slots 4 3 2 1[...]

Basics Ethernet Support - 1 2 Ethernet Support There are two Ethernet ports on the Power Macintosh 7200 Series and WS 7250 logic boards: an AAUI port and a 10BASE-T port. You can use only one Ethernet port at one time, however. If you have cables plugged into both Ethernet ports, the computer uses the 10BASE-T port by default. GeoPort Geoport is a [...]

Basics GeoPort - 1 3 • Once connected, it supports an arbitrary number of independent data streams up to a total bandwidth of 2 MB/ second. • Unlike traditional asynchronous data communications (such as AppleTalk), GeoPort also supports isochronous data streams (such as real-time voice and video) and provides the real-time Application Program I[...]

Basics PC Compatibility Cards - 1 4 PC Compatibility Cards The Power Macintosh 7200/120 features an optional PC Compatibility card, which brings full DOS functionality to the Macintosh computer. Two versions of the PC Compatibility card are available: a 7" card and a 12" card. The cards plug into any available PCI slot on the logic board.[...]

Basics The Cuda Chip - 1 5 The Cuda Chip The Cuda is a microcontroller chip. Its function is to • Turn system power on and off • Manage system resets from various commands • Maintain parameter RAM (PRAM) • Manage the Apple Desktop Bus (ADB) • Manage the real-time clock Many system problems can be resolved by resetting the Cuda chip (see S[...]

Basics Resetting the Logic Board - 1 6 Resetting the Logic Board Resetting the logic board can resolve many system problems (refer to "Symptom Charts" for examples). Whenever you have a unit that fails to power up, you should follow this procedure before replacing any modules. 1 Unplug the computer. 2 Remove the battery from the logic boa[...]

Basics Resetting the Logic Board - 1 7 5 Reassemble the computer and test the unit. Note: This procedure resets the computer’s PRAM. Be sure to check the computer’s time/date and other system parameter settings afterwards. Note: If this procedure resolves the problem, claim an adjustment on an SRO. If not, replace the defective component and DO[...]

Basics Rear View Diagram - 1 8 Rear View Diagram The Power Macintosh 7200 Series and WS 7250 computers offer the following external ports: SCSI, AAUI Ethernet, 10BASE-T Ethernet, serial printer (GeoPort compatible), serial modem (GeoPort compatible), DB-15 video, ADB, sound input, and sound output. The drawing on the next page illustrates the exter[...]

Basics Rear View Diagram - 1 9 Figure: Po wer Macintosh 7200 and WS 7250 Rear P anel SCSI AAUI Ethernet  ADB  Monitor 10BASE-T Ethernet Modem Printer Sound Out Sound In[...]

Basics Power Macintosh 7200 Logic Board Diagram - 2 0 Power Macintosh 7200 Logic Board Diagram There are five versions of the Power Macintosh 7200 logic board: one 75 MHz version, two 90 MHz versions, and two 120 MHz versions. The two 90 MHz versions of the logic board are functionally equivalent, as are the two 120 MHz versions; However, one of th[...]

Basics Power Macintosh 7200 Logic Board Diagram - 2 1 Figure: Po wer Macintosh 7200 Logic Board External SCSI AAUI Ethernet 10BASE-T Ethernet Printer (top)  ADB Sound In (bottom) Sound Out (top) PCI Slots Battery ROM SIMM DRAM Slots Power On/Off Power LED  Internal SCSI 3.3V Power Supply CD Audio Floppy Drive Power [...]

Basics Workgroup Server 7250 Logic Board Diagram - 2 2 Workgroup Server 7250 Logic Board Diagram There is only one version of the WS 7250 logic board, which features a 120 MHz microprocessor. This board does not require an auxiliary processor fan. The following drawing shows the WS 7250 logic board. Note: Some versions of the logic board have a ROM[...]

Basics Workgroup Server 7250 Logic Board Diagram - 2 3 Figure: W orkgroup Server 7250 Logic Boar d External SCSI AAUI Ethernet 10BASE-T Ethernet Printer (top)  ADB Sound In (bottom) Sound Out (top) PCI Slots Battery ROM SIMM DRAM Slots Power On/Off Power LED  Internal SCSI 3.3V Power Supply CD Audio Floppy Drive Power?[...]

Basics Repair Strategy - 24 Repair Strategy Service the Power Macintosh 7200 Series and WS 7250 computers through module exchange and parts replacement. Customers can request on-site service from an Apple Authorized Service Provider Plus (AASP+) or Apple Assurance. They can also choose carry-in service from an AASP. Ordering Apple Service Providers[...]

Basics Ordering - 25 Large businesses, universities, and K-12 accounts must provide a purchase order on all transactions, including orders placed through the AppleOrder system. Service providers not enrolled in AppleOrder may fax their orders to Service Provider Support (512-908-8125) or mail them to Apple Computer, Inc. Service Provider Support MS[...]

Basics Warranty and AppleCare - 2 6 Warranty and AppleCare The Power Macintosh 7200 Series and WS 7250 computers are covered under the Apple One-Year Limited Warranty. The AppleCare Service Plan is also available for these products. Service Providers are reimbursed for warranty and AppleCare repairs made to these computers. For pricing information,[...]

Service Source K Specifications Po wer Macintosh 7200 Series/ WS 7250[...]

Specifications Processor - 1 Processor CPU PM 7200/75 and 7200/90 PowerPC 601 RISC microprocessor running at 75 or 90 MHz Built-in FPU and 32K cache Requires system software version 7.5.2 or later with appropriate System Enabler PM 7200/120 and WS 7250/120 PowerPC 601 RISC microprocessor running at 120 MHz Built-in FPU and 32K cache Requires system[...]

Specifications Memory - 2 Memory DRAM 8 MB or 16 MB standard; expandable to 256 MB Uses 168-pin, 64-bit, 70 ns or faster DRAM DIMMs RO M 4 MB ROM (may be installed in ROM SIMM slot, or soldered on the logic board) Cache Supports 256K Level 2 cache DIMM Clock/Calendar CMOS custom circuitry with long-life battery[...]

Specifications I/O Interfaces - 3 I/O Interfaces SCSI Dual-channel asynchronous SCSI interface; external channel supports up to seven SCSI devices Serial Two RS-232/RS-422 serial ports compatible with LocalTalk and GeoPort cables; mini DIN-8 connectors ADB One Apple Desktop Bus port for a keyboard, mouse, etc. Ethernet One AAUI and one 10BASE-T Eth[...]

Specifications I/O Interfaces - 4 Expansion Three PCI expansion slots, compatible with all PCI 2.0 specification-compliant cards with the addition of a Mac OS- specific software driver (not NuBus compatible) Sound 16-bit stereo sound input and output ports V ideo Built-in DB-15 video connector on logic board[...]

Specifications I/O Devices - 5 I/O De vices K eyboard Standard, extended, or adjustable keyboard; keyboard draws 25-80 mA, depending on model type Mouse ADB Mouse II; mouse draws up to 10 mA Microphone PM 7200 Series Apple PlainTalk microphone standard[...]

Specifications Video Support - 6 V ideo Support * VRAM expansion works as follows:1 MB of VRAM is soldered to the board. To go to 2 MB, install one 1 MB VRAM DIMM in slot 1. To go to 4 MB, install three 1MB VRAM DIMMs in slots 1, 2, & 3. T able 1: V ideo T able f or P ower Macintosh 7200 Series/WS 7250 PIXEL DEPTHS MONIT OR DISPLA Y SIZE 1 MB V[...]

Specifications Disk Storage - 7 Disk Storage Hard Drive PM 7200/75 and 7200/90 500 MB internal SCSI hard drive PM 7200/120 1.2 GB internal SCSI hard drive WS 7250/120 2 GB internal SCSI hard drive Floppy Drive One Apple SuperDrive 1.4 MB floppy drive CD-R OM Drive One internal AppleCD 600i 4x CD-ROM drive or 1200i 8x CD-ROM drive[...]

Specifications PC Compatibility Card (Optional) - 8 PC Compatibility Card (Optional) Processor 7" Card 5x86 processor operating at 100 MHz 12" Card Pentium processor operating at 100 MHz DRAM 7" Card 8 MB DIMM standard, expandable to 64 MB 12" Card 8 MB built-in, expandable to 72 MB VRAM 7" Card 1 MB 12" Card 1 MB, exp[...]

Specifications PC Compatibility Card (Optional) - 9 Cache 7" Card 128K Level 2 cache 12" Card 256 K Level 2 Cache Sound Sound Blaster 16-compatible support Software MS-DOS version 6.22 included Networking Support for Novell NetWare SPX/IPX, TCP/IP, and NETBEUI protocols in MS-DOS and Windows environments using the built-in Ethernet connec[...]

Specifications Electrical - 10 Electrical Line V oltage PM 7200 100-240 VAC, RMS single phase, automatically configured WS 7250/120 100-270 VAC, RMS single phase, automatically configured Frequency 50-60 Hz, single phase Maximum Po wer 150 W maximum, not including monitor Note : the power supply has two voltage settings: 115V and 230 V. The power s[...]

Specifications Physical - 11 Physical Dimensions Height 6.5 in. (15.6 cm) Width 14.37 in. (36.5 cm) Depth 16.93 in. (43.0 cm) W eight 22 lb. (9.97 kg); weight varies depending on devices installed[...]

Specifications Environmental - 12 En vironmental Operating T emperature 50 to 104° F (10 to 40° C) Storage T emperature —40 to 116° F (—40 to 47° C) Relative Humidity 5% to 95% noncondensing Maximum Altitude 10,000 ft. (3,048 m)[...]

Service Source K Troubleshooting Power Macintosh 7200 Series/ WS 7250[...]

Troubleshooting General - 1 General The Symptom Charts included in this chapter will help you diagnose specific symptoms related to your product. Because cures are listed on the charts in the order of most likely solution, try the first cure first. Verify whether or not the product continues to exhibit the symptom. If the symptom persists, try the [...]

Troubleshooting Cleaning Procedure for Card Connectors - 2 Cleaning Procedure for Card Connectors It is possible for residue to build up on the gold edge connector pins on some PCI cards, which could cause a variety of symptoms. If you are having problems with a PCI card, inspect the connector pins with a magnifying glass. If you find residue, use [...]

Troubleshooting Symptom Charts/ Power Supply - 3 Symptom Charts Power Supply System doesn’t power up 1 Reseat ROM SIMM (if present). 2 Reset Cuda chip. (Refer to The Cuda Chip in Basics for instructions.) 3 Reset logic board. (Refer to Resetting the Logic Board in Basics for instructions.) 4 Replace power supply. 5 Replace logic board.[...]

Troubleshooting Symptom Charts/ Error Chords - 4 Error Chords One-part error chord sounds during startup sequence 1 Disconnect SCSI data cable from hard drive and reboot system. If startup sequence is normal, initialize hard drive. Test unit again with SCSI data cable connected. If error chord still sounds, replace hard drive. 2 Disconnect floppy d[...]

Troubleshooting Symptom Charts/ System - 5 System Does not power on, screen is black, fan is not running and LED is not lit 1 Check power cables. 2 Plug monitor directly into wall socket, and verify that monitor has power. 3 Reseat ROM SIMM (if present). 4 Reset Cuda chip. (Refer to The Cuda Chip in Basics for instructions.) 5 Reset logic board. (R[...]

Troubleshooting Symptom Charts/ System - 6 Clicking, chirping, or thumping 1 Remove all PCI cards and test the unit. If problem does not occur with cards removed, begin replacing them one at a time to determine which card is causing the problem. Replace problem card with known-good card. 2 Remove hard drive. If problem no longer occurs, replace har[...]

Troubleshooting Symptom Charts/ System - 7 System shuts down intermittently 1 Make sure air vents are clear. Thermal protection circuitry may shut down system. After 30 to 40 minutes, system should be OK. 2 Make sure power cord is firmly plugged in. 3 Verify fan is plugged in and working (if present). Replace if necessary. (Note: Some 90 MHz versio[...]

Troubleshooting Symptom Charts/ System - 8 System intermittently crashes or hangs 1 Verify system software is version 7.5.2 or later (Power Macintosh 7200/75 or 7200/90) or 7.5.3 or later (Power Macintosh 7200/120 or WS 7250/120). 2 Verify DIMMs are noncomposite. 3 Verify software is known-good. Do a clean install of the system software. 4 Verify s[...]

Troubleshooting Symptom Charts/ System - 9 During startup, following message is displayed, "This startup disk will not work on this Macintosh model...." 1 Verify that startup disk is good. 2 Verify system software is version 7.5.2 or later (Power Macintosh 7200/75 or 7200/90) or 7.5.3 or later (Power Macintosh 7200/120 or WS 7250/120). 3 [...]

Troubleshooting Symptom Charts/ System - 1 0 2) Disconnect hard drive SCSI cable and power cable. 3) Remove hard drive from chassis. 4) Turn drive over and examine part number label on 50-pin SCSI connector (removing drive carrier if necessary). If label reads “1280S p/n TM12S012” and “REV 02-B”, replace drive. Note : Only Revision “02”[...]

Troubleshooting Symptom Charts/ Video - 1 1 Video Screen is black, boot tone is present, drive operates, fan is running, and LED is lit 1 Adjust brightness on monitor. 2 Clear parameter RAM. Hold down <Command> <Option> <P> <R> during startup but before "Welcome to Macintosh" appears. 3 Reset Cuda chip. (Refer to T[...]

Troubleshooting Symptom Charts/ Video - 1 2 Screen is black, no boot tone and drive does not operate, but fan is running and LED is lit 1 Reset Cuda chip. (Refer to The Cuda Chip in Basics for instructions.) 2 Reset logic board. (Refer to Resetting the Logic Board in Basics for instructions.) 3 Remove all DRAM DIMMs and try replacing them one at a [...]

Troubleshooting Symptom Charts/ Video - 1 3 Boot tone is present and screen lights up, but nothing is displayed on screen 1 Reset Cuda chip. (Refer to The Cuda Chip in Basics for instructions.) 2 Reset logic board. (Refer to Resetting the Logic Board in Basics for instructions.) 3 Replace monitor cable. 4 Test with known-good monitor. Replace monit[...]

Troubleshooting Symptom Charts/ Floppy Drive - 14 Floppy Drive Internal floppy drive does not operate 1 Replace floppy disk with known-good disk. 2 Replace floppy drive cable. 3 Replace floppy drive. 4 Replace logic board. Retain customer's DIMMs. During system startup, disk ejects; display shows icon with blinking “X” 1 Replace disk with [...]

Troubleshooting Symptom Charts/ Floppy Drive - 15 Does not eject disk 1 Shut down computer. Hold mouse button down while you restart computer. 2 Replace floppy drive cable. 3 Replace floppy drive. 4 Replace logic board. Retain customer's DIMMs. Attempts to eject disk, but doesn’t 1 Reseat floppy drive bezel and drive so bezel slot aligns cor[...]

Troubleshooting Symptom Charts/ Floppy Drive - 16 MS-DOS drive does not recognize a disk formatted on a 1.4 MB drive To read and write files with either MS-DOS or 1.4 MB drive, format all disks with MS-DOS drive first. Internal floppy drive runs continuously 1 Replace disk with known-good floppy disk. 2 Replace floppy drive cable. 3 Replace floppy [...]

Troubleshooting Symptom Charts/ Hard Drive - 17 Hard Drive Single internal hard drive does not operate; drive doesn’t spin 1 Replace hard drive. If problem resolved, reinstall SCSI device driver and system software. 2 Replace power supply. No internal SCSI drives operate 1 Verify there are no duplicate SCSI device addresses. 2 Disconnect external[...]

Troubleshooting Symptom Charts/ Peripherals - 18 Drive does not appear on the desktop 1 Verify there are no duplicate SCSI device addresses. 2 Update SCSI device driver using Drive Setup. Check drive’s directory structure using Disk First Aid. 3 Replace SCSI hard drive cable. 4 If drive is not initialized, use Drive Setup to initialize. 5 Replace[...]

Troubleshooting Symptom Charts/ Peripherals - 19 Peripherals Cursor does not move 1 Check mouse connection. 2 Inspect inside of mouse for buildup of dirt or other contaminants. Clean mouse if necessary. 3 If mouse was connected to keyboard, connect mouse to computer ADB port instead. If mouse works, replace keyboard. 4 Replace ADB cable. 5 If mouse[...]

Troubleshooting Symptom Charts/ Peripherals - 20 Double-click doesn’t open application, disk, or server 1 Remove duplicate system folders. 2 Clear parameter RAM. Hold down <Command> <Option> <P> <R> during startup but before "Welcome to Macintosh" appears. 3 If mouse was connected to keyboard, connect mouse to co[...]

Troubleshooting Symptom Charts/ Peripherals - 21 Known-good serial printer does not work 1 Verify you have correct version of system software. 2 Verify that Chooser is set correctly. 3 Reinstall correct printer drivers. 4 Do clean install of system software. 5 Replace printer interface cable. 6 Replace logic board. Retain customer's DIMMs. Kno[...]

Troubleshooting Symptom Charts/ CD-ROM Drive - 22 CD-ROM Drive CD-ROM drive does not work 1 Try using known-good compact disc. 2 Replace CD-ROM drive mechanism. Macintosh does not display CD-ROM icon once CD is inserted in drive 1 Verify that CD-ROM software is installed. 2 Replace CD-ROM drive mechanism. 3 Replace SCSI data cable. Computer with 60[...]

Troubleshooting Symptom Charts/ Miscellaneous - 23 Miscellaneous No sound from speaker 1 Verify that volume setting in Control Panel is 1 or above. 2 Clear parameter RAM. Hold down <Command> <Option> <P> <R> during startup but before “Welcome to Macintosh” appears. 3 Verify speaker is plugged into logic board. 4 Replace [...]

Troubleshooting Symptom Charts/ Miscellaneous - 24 Transferring/print- ing large files across certain repeaters causes Power Macintosh 7200/90 to hang or exhibit poor performance or Power Macintosh 7200/90 locks up or times out when run- ning under TCP 1 Verify computer is Power Macintosh 7200/90 and attached to Ethernet network. 2 Test to see if p[...]

Troubleshooting Symptom Charts/ Miscellaneous - 25 Identifying Logic Boards As a general rule, if the Power Macintosh 7200/90 computer has a serial number of xx545xxxxxx or higher, then the computer should have the revised logic board already installed. If the computer has a serial number of xx544xxxxxx, xx543xxxxxx or below, verify that the board [...]

Service Source K T ake Apart Po wer Macintosh 7200 Series/ WS 7250[...]

Take Apart Top Housing - 1 Top Housing No preliminary steps are required before you begin this procedure. Note: The top housing covers the top, front, and left and right sides of the computer. Top Housing[...]

Take Apart Top Housing - 2 1 Press the two tabs at the front corners of the top housing to release the top housing from the bottom chassis. Left Tab Right Tab[...]

Take Apart Top Housing - 3 2 Pull the top housing forward about 1 to 2 inches and lift straight up to remove the top housing from the computer.[...]

Take Apart Bezels - 4 Bezels Before you begin, remove the top housing. Note: As you face the computer, the bezels are in the middle of the top housing’s front panel. CD-ROM Bezel Blank Bezel[...]

Take Apart Bezels - 5 1 From the inside of the top housing, push out on the moon-shaped opening at the bottom of the bezel to release the tab. Lift up the bezel to remove it from the top housing. Tab[...]

Take Apart CD-ROM Drive - 6 CD-ROM Drive Before you begin, remove the top housing. Note: As you face the computer, the CD-ROM drive is in the bottom right drive bay. CD-ROM Drive[...]

Take Apart CD-ROM Drive - 7 1 Lift up the top tabs and pull out the CD-ROM EMI shield to remove it from the front of the CD-ROM drive. CD-ROM Shield[...]

Take Apart CD-ROM Drive - 8 2 Disconnect the SCSI cable, power cable, and CD audio cable from the back of the CD-ROM drive. CD Audio Cable SCSI Cable Power Cable[...]

Take Apart CD-ROM Drive - 9 3 Pull up the retaining clip (which is located at the back of the CD-ROM drive) and slide the CD- ROM forward to remove it from the internal chassis. Note: Be sure to remove the CD-ROM drive from its carrier before returning the drive to Apple. CD-ROM Drive[...]

Take Apart Floppy Drive - 10 Floppy Drive Before you begin, remove the top housing. Note: As you face the computer, the floppy drive is in the top right drive bay. Floppy Drive[...]

Take Apart Floppy Drive - 11 1 Remove the CD-ROM shield, the blank shield, and the floppy drive shield from the front of the unit. CD-ROM Shield Blank Shield Floppy Drive Shield[...]

Take Apart Floppy Drive - 12 2 Flip open the chassis support foot. Chassis Support Foot[...]

Take Apart Floppy Drive - 13 3 Disconnect the floppy drive cable from the back of the floppy drive. Floppy Drive Cable Floppy Drive[...]

Take Apart Floppy Drive - 14 4 Pull out on the plastic drive rails that hold the floppy drive to the drive chassis and push the drive back to release it. Replacement Note: If you are replacing the floppy drive, remove the EMI gasket from the defective drive and attach the gasket in the center of the replace- ment drive’s top surface, with the “[...]

Take Apart Hard Drive - 15 Hard Drive Before you begin, remove the top housing. Note: As you face the computer, the hard drive is in the top left drive bay. Hard Drive[...]

Take Apart Hard Drive - 16 1 R emove the CD-ROM shield, the blank shield, and the floppy drive shield from the front of the unit. CD-ROM Shield Blank Shield Floppy Drive Shield[...]

Take Apart Hard Drive - 17 2 Disconnect the SCSI cable and hard drive power cable from the back of the hard drive. Power Cable SCSI Cable[...]

Take Apart Hard Drive - 18 3 Pull up the retaining clip at the back of the hard drive and push back the hard drive to remove it from the drive chassis. Note: For information on removing the hard drive from its carrier and returning drives, cables, and carriers to Apple, refer to Additional Procedures in the Hard Drives manual. Retaining Clip Hard D[...]

Take Apart Chassis Latch - 1 9 Chassis Latch Before you begin, remove the top housing. Note: The chassis latches mount in the internal chassis and secure the internal chassis to the external chassis frame. Chassis Latch Chassis Latch[...]

Take Apart Chassis Latch - 2 0 1 Use a screwdriver to push out the tab indicated in the illustration. Slide the latch forward and lift it from the chassis. Tab[...]

Take Apart Drive Rails - 21 Drive Rails Before you begin, remove: • Top Housing • All Drives Note: The drive rails attach to the internal chassis underneath the CD-ROM drive and the extra hard drive bay. Drive Rails[...]

Take Apart Drive Rails - 22 1 First, release the chassis latches. Next, flip open the chassis support foot and then swing open the internal chassis that contains the power supply. IMPORT ANT : On some 90 and 120 MHz versions there is a fan that plugs into the logic board at connector J70. You must unplug the fan as you are swinging open the chassis[...]

Take Apart Drive Rails - 23 2 Use a screwdriver to push out the tab indicated in the illustration. 3 Slide the drive rail either forward or backward (depending on which way the tabs are facing) and lift it from the chassis. IMPORT ANT : On some 90 and 120 MHz versions there is a fan that plugs into the logic board at connector J70. Be sure to plug [...]

Take Apart Battery - 2 4 Battery Before you begin, remove the top housing. Note: As you face the computer, the battery is near the front left corner of the logic board. Battery[...]

Take Apart Battery - 2 5 1 First, release the chassis latches. Next, flip open the chassis support foot and then swing open the internal chassis that contains the power supply. IMPORT ANT : On some 90 and 120 MHz versions there is a fan that plugs into the logic board at connector J70. You must unplug the fan as you are swinging open the chassis. B[...]

Take Apart Battery - 2 6 2 Use a screwdriver to gently pry up one side of the battery cover.[...]

Take Apart Battery - 2 7 3 Lift up the battery to remove it from the logic board. IMPORT ANT : On some 90 and 120 MHz versions there is a fan that plugs into the logic board at connector J70. Be sure to plug the fan back in when you put the unit back together.[...]

Take Apart Power Supply - 28 Power Supply Before you begin, remove the top housing. Note: As you face the computer, the power supply is in the back right corner. IMPORT ANT : When replacing the power supply, be sure the voltage switch on the back of the power supply is set correctly (115V in the U.S.). Power Supply[...]

Take Apart Power Supply - 29 1 Disconnect the power supply cables from the back of the CD-ROM drive and hard drive(s). CD Power Cable Hard Drive Power Cable[...]

Take Apart Power Supply - 30 2 First, release the chassis latches. Next, flip open the chassis support foot and then swing open the internal chassis that contains the power supply. IMPORT ANT : On some 90 and 120 MHz versions there is a fan that plugs into the logic board at connector J70. You must unplug the fan as you are swinging open the chassi[...]

Take Apart Power Supply - 31 3 To secure the internal chassis in the up position, flip down the chassis support arm. Make sure the tab on the bottom of the support arm is securely fastened in the hole provided in the bottom chassis. W arning : To be safe, never work on the computer with the internal chassis in the up position unless the chassis sup[...]

Take Apart Power Supply - 32 4 Disconnect the power supply cables from the logic board. Note: The 22-pin cable supplies 5 V and +/- 12 V power for the logic board. Power Supply Cables[...]

Take Apart Power Supply - 33 5 From the back of the computer, remove the two screws that secure the power supply to the chassis. Screw Screw[...]

Take Apart Power Supply - 34 6 Release the chassis support arm and swing down the internal chassis. IMPORT ANT : On some 90 and 120 MHz versions there is a fan that plugs into the logic board at connector J70. Be sure to plug the fan back in when you put the unit back together. Chassis Support Arm Tab[...]

Take Apart Power Supply - 35 7 Slide the power supply forward and pull it out of the computer. You will need to feed the power supply cables that connect to the logic board up through the hole in the chassis. IMPORT ANT Make sure the power supply switch on the back of the power supply is set to the correct voltage (115V in the U.S.) The switch is a[...]

Take Apart Power Supply - 36 Replacement Note: There are two metal tabs on the back of the metal chassis that lock into the power supply. When replacing the power supply, slide it back until it locks into place.[...]

Take Apart Speaker - 3 7 Speaker Before you begin, remove the top housing. Note: As you f ace the computer, the speaker is in the front left corner of the bottom chassis. Speaker[...]

Take Apart Speaker - 3 8 1 Swing open the expansion card cover.[...]

Take Apart Speaker - 3 9 2 Remove the two Torx screws that secure the speaker to the metal chassis. Screw Screw[...]

Take Apart Speaker - 4 0 3 Disconnect the speaker cable from the logic board. 4 Press the latch holding the speaker to the chassis and lift the speaker out of the computer. Speaker Cable Latch[...]

Take Apart Power Actuator - 4 1 Power Actuator Before you begin, remove the top housing. Note: As you f ace the computer, the power actuator is in the front left corner of the bottom chassis (directly beneath the speaker). Power Actuator[...]

Take Apart Power Actuator - 4 2 1 Push in the tab that secures the power actuator to the chassis and push the power actuator out of the computer. Power Actuator Tab[...]

Take Apart PCI Covers - 43 PCI Covers Before you begin, remove the top housing. Note: As you f ace the back of the computer, the PCI covers are on the right side of the rear panel. PCI Covers[...]

Take Apart PCI Covers - 44 1 Swing open the expansion card cover.[...]

Take Apart PCI Covers - 45 2 From the back of the computer, press in and lift up on the PCI cover to remove it. PCI Cover[...]

Take Apart Rear Panel - 46 Rear Panel Before you begin, remove the top housing. Note: The rear panel covers the back side of the computer through which all the external connectors are accessible. Rear Panel[...]

Take Apart Rear Panel - 47 1 First, release the chassis latches. Next, flip open the chassis support foot and then swing open the internal chassis that contains the power supply. IMPORT ANT : On some 90 and 120 MHz versions there is a fan that plugs into the logic board at connector J70. You must unplug the fan as you are swinging open the chassis.[...]

Take Apart Rear Panel - 48 2 Lift the rear panel straight up to unhook it from the chassis. Once the rear panel is un- hooked, you can remove it from the computer. Note : There are tabs on the rear panel that hook into the metal chassis. IMPORT ANT : On some 90 and 120 MHz versions there is a fan that plugs into the logic board at J70. Be sure to p[...]

Take Apart Rear Panel - 49 Replacement Note : To replace the rear panel, you must first follow the procedures for removing the logic board. Instead of fully removing the logic board from the chassis, however, just slide it forward about an inch. Once you have the rear panel in place, slide the logic board back toward the rear panel until the board [...]

Take Apart PCI Cards - 50 PCI Cards Before you begin, remove the top housing. Note: PCI expansion cards, if present, install perpendic- ularly to the logic board in one of three PCI slots. They are located directly beneath the plastic PCI guide. If installing third-party PCI cards, use the middle PCI slot for better clearance with the expansion car[...]

Take Apart PCI Cards - 51 1 Swing open the expansion card cover to provide access to the logic board.[...]

Take Apart PCI Cards - 52 2 Grab the corners of the PCI card and pull up the card to remove it. Replacement Note: When installing third-party PCI cards, use the middle PCI slot for better clearance with the expansion card cover. If the expansion card cover will not close completely once the third- party card is installed, remove the expansion card [...]

Take Apart VRAM DIMMs - 53 VRAM DIMMs Before you begin, remove the top housing. Note: VRAM DIMMs install in the VRAM DIMM slots on the logic board. Note: The Power Macintosh 7200 Series and WS 7250 computers use VRAM DIMMs (112-pin,70 ns or faster) instead of VRAM SIMMs. The VRAM SIMMs used in earlier Power Macintosh models are not compatible. VRAM[...]

Take Apart VRAM DIMMs - 54 1 First, release the chassis latches. Next, flip open the chassis support foot and then swing open the internal chassis that contains the power supply. IMPORT ANT : On some 90 and 120 MHz versions there is a fan that plugs into the logic board at connector J70. You must unplug the fan as you are swinging open the chassis.[...]

Take Apart VRAM DIMMs - 55 2 To secure the internal chassis in the up position, flip down the chassis support arm and make sure its bottom tab is securely fastened in the hole provided in the bottom chassis. W arning : To be safe, never work on the computer with the internal chassis in the up position unless the chassis support arm is down and secu[...]

Take Apart VRAM DIMMs - 56 3 Push down the release latch next to the VRAM DIMM. Grab the DIMM by the top corners and lift straight up to remove the DIMM. Note : See the following pages for important replacement information. VRAM DIMM Release Latch[...]

Take Apart VRAM DIMMs - 57 Replacement Note: Position the DIMM evenly over the slot and press down gently to install it. The release latch should click into place. Do not force the DIMM or you may damage it. Make sure the DIMM is evenly seated. Note: These computers use VRAM DIMMs (112-pin, 70 ns or faster) instead of VRAM SIMMs. The VRAM SIMMs use[...]

Take Apart VRAM DIMMs - 58 4 Be sure to release the chassis support arm before you swing down the internal chassis. IMPORT ANT : On some 90 and 120 MHz versions there is a fan that plugs into the logic board at connector J70. Be sure to plug the fan back in when you put the unit back together. Chassis Support Arm Tab[...]

Take Apart Logic Board - 5 9 Logic Board Before you begin, remove the following: • Top Housing • PCI Cards (if present) • Speaker • Power Actuator Note: The logic board is located in the very bottom of the bottom chassis. Logic Board[...]

Take Apart Logic Board - 6 0 1 Swing open the expansion card cover to provide access to the logic board.[...]

Take Apart Logic Board - 6 1 2 First, release the chassis latches. Next, flip open the chassis support foot and then swing open the internal chassis that contains the power supply. IMPORT ANT : On some 90 and 120 MHz versions there is a fan that plugs into the logic board at connector J70. You must unplug the fan as you are swinging open the chassi[...]

Take Apart Logic Board - 6 2 3 Disconnect the following cables from the logic board: both power supply cables, floppy drive cable, SCSI cable, and CD audio cable. CD Audio Floppy 10-Pin Power Supply 22-Pin Power Supply SCSI[...]

Take Apart Logic Board - 6 3 4 Disconnect the LED and speaker cables from the logic board. Speaker Cable LED Cable[...]

Take Apart Logic Board - 6 4 5 Remove the screw inside the top column support that secures the logic board to the chassis. Top Column Support[...]

Take Apart Logic Board - 6 5 6 Press down on the two tabs at the front of the logic board and slide the board forward (away from the rear panel) to release it from the tabs on the bottom chassis. Lift the logic board from the chassis to remove it. IMPORT ANT : Remove the EMI clip when you take the logic board out of the chassis. Failure to comply m[...]

Take Apart Logic Board - 6 6 7 Lift up the top edge of the EMI clip and pull it off the board to remove it. IMPORT ANT : Some 90 and 120 MHz versions have a fan that plugs into the logic board at J70. Be sure to plug the fan back in when you put the unit back together. Note: Remove the EMI clip and any cache, DRAM, or VRAM DIMM(s) before returning [...]

Take Apart Processor Fan - 67 Processor Fan Before you begin, remove the top housing. IMPORT ANT : Only some versions of the 90 and 120 MHz logic board use the processor fan. If you replace the processor fan, make sure you plug it back into the logic board before you replace the top housing. Processor Fan[...]

Take Apart Processor Fan - 68 1 Unplug the fan connector from the logic board. Fan Connector[...]

Take Apart Processor Fan - 69 2 First, release the chassis latches. Next, flip open the chassis support foot and then swing open the internal chassis that contains the power supply. Chassis Support Foot Internal Chassis[...]

Take Apart Processor Fan - 70 3 Remove the two screws that attach the processor fan to the internal chassis. Replacement Note : The processor fan installs at an angle so that it blows down directly on the processor when the internal chassis is closed. Screws[...]

Take Apart Processor Fan - 71 Replacement Note : Be sure to plug the processor fan connector back into the logic board. Fan Connector[...]

Take Apart Bottom Chassis - 7 2 Bottom Chassis Before you begin, remove: • Top Housing • PCI Cards (if present) • AV Module • Speaker • Power Supply • Power Actuator • All Drives • Chassis Latches • Drive Rails • Logic Board • Rear Panel • Fan (if present)[...]

Take Apart Bottom Chassis - 7 3 Note: The bottom chassis is what is left once all other modules have been removed.[...]

Service Source K Upgrades Po wer Macintosh 7200 Series/ WS 7250[...]

Upgrades P C Compatibility Cards - 1 PC Compatibility Cards There are three Apple PC Compatibility cards that can be installed in the Power Macintosh 7200 Series computers: • 7” 100 MHz PC Compatibility Card • 12” 100 MHz PC Compatibility Card • 12” 166 MHz-P PC Compatibility Card For more information about these cards and installation [...]

Upgrades Power Macintosh 7600 Upgrade - 2 Power Macintosh 7600 Upgrade The Power Macintosh 7600 Upgrade kit includes: • A Power Macintosh 7600 logic board • An EMI clip and EMI gasket • An AV module connector assembly • A video out cover • Two M 2.5x88mm screws • A Power Macintosh 7600 product ID label Note : Unlike the Power Macintosh [...]

Upgrades Power Macintosh 7600 Upgrade - 3 Before you begin, remove the following components. Refer to the Take Apart chapter in this manual for instructions. • Top Housing • Processor Fan (if present) • PCI Cards (if present) • Speaker • Power Actuator • Cache DIMM • DRAM DIMMs • VRAM DIMMs Note: Set the Cache, DRAM, and VRAM DIMMs [...]

Upgrades Power Macintosh 7600 Upgrade - 4 1 Remove the Power Macintosh 7200 logic board. (Refer to the Take Apart chapter for instructions.) IMPORT ANT : When you take the Power Macintosh 7200 logic board out of the chassis, remove the EMI clip or you may damage the board. The EMI clip is located next to the sound in and out ports. Note : Do NOT re[...]

Upgrades Power Macintosh 7600 Upgrade - 5 2 Install the EMI gasket between the sound in and sound out ports on the Power Macintosh 7600 logic board. Note : The gasket may already be installed. Be sure to check.[...]

Upgrades Power Macintosh 7600 Upgrade - 6 3 Install the EMI clip that came with the Upgrade Kit onto the Power Macintosh 7600 logic board in the same location as the one you removed from the old logic board at the very beginning of the upgrade procedure. IMPORT ANT : Once you have installed the EMI clip, do not set down the logic board or you may d[...]

Upgrades Power Macintosh 7600 Upgrade - 7 Note: For the next two steps, turn the computer so you are facing the inside of the rear panel. 6 Press in on the two plastic tabs at the bottom of the blank AV module cover, and push out on the cover to remove it. Note: Once the blank cover is removed, you will see a plastic frame with port holes for the A[...]

Upgrades Power Macintosh 7600 Upgrade - 8 7 Place the video out cover over the bottom two openings on the left side.[...]

Upgrades Power Macintosh 7600 Upgrade - 9 8 From the inside of the computer, position the AV module into the plastic frame so that its connectors fit into the appropriate holes in the frame. 9 Secure the AV module with the two screws that came in the Upgrade Kit. 1 0 Attach the AV module to the logic board. The AV connector on the logic board is lo[...]

Upgrades Power Macintosh 7600 Upgrade - 1 0 Note: At this point you must install a processor card in the computer. The processor card is not included in the Power Macintosh 7600 Upgrade Kit and must be purchased separately. The processor card installs perpendicularly to the logic board directly beneath the plastic PCI guide. Note : If you install a[...]

Upgrades Power Macintosh 7600 Upgrade - 1 1 1 1 Position the card evenly over the processor card slot and press down gently. Do not force the card or you may damage it. Make sure the card is seated evenly. Note: If the card is properly seated, the gold contacts on the card should not be visible. Heat Sink Processor Card[...]

Upgrades Power Macintosh 7600 Upgrade - 1 2 12 If you are installing a 132 MHz card, be sure to install the EMI grounding clip that came with the 132 MHz Upgrade Kit. (Back of Computer) Grounding Clip Processor Card Heat Sink Top Chassis (L18) Installing grounding clip[...]

Upgrades Power Macintosh 7600 Upgrade - 1 3 1 3 Replace the following components. Refer to the Take Apart chapter for instructions: • Power Actuator • Speaker • PCI Cards (if present) • Top Housing IMPORT ANT : Do not replace the processor fan (if present in the original Power Macintosh 7200 unit). The fan is not used with the Power Macinto[...]

Service Source K Exploded V ie w Po wer Macintosh 7200 Series/ WS 7250[...]

Exploded View 1 Top Housing 922-1642 Logic Board 661-1000 661-0979 661-1059 661-1080 CD-ROM Drive* 661-0913, 661-1240 Rear Panel 922-1655 Speaker 922-1639 Speaker Housing 922-1640 CD-ROM Carrier 922-0850 Floppy Drive 661-0121 Floppy Drive Cable 922-1636 LED Cable 922-0841 Power Actuator 922-1644 Floppy Drive Shield 922-1648 Hard Drive Carrier 922-0[...]

Exploded View 2 Top Housing 922-1642 Logic Board 661-1080 CD-ROM Drive 661-0913 661-1240 Rear Panel 922-1655 Speaker 922-1639 Speaker Housing 922-1640 CD-ROM Carrier 922-0850 Floppy Drive 661-0121 Floppy Drive Cable 922-1636 LED Cable 922-0841 Power Actuator 922-1644 Floppy Drive Shield 922-1648 Hard Drive Carrier 922-0621 Power Supply 661-0920 Har[...]