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Dell 2120 manual

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Table of contents for the manual

  • Page 1

    Dell Latitude 2120 Service Manual  Notes, Cautions, and Warnings If you purchased a Dell n Series computer, any references in this document to Microsoft Windows operating systems are not applicable. Information in this document is subject to change without notice. © 2010DellInc.Allrightsreserved. Reproduction of this material [...]

  • Page 2

    Back to Contents Page Battery Dell Latitude 2120 Service Manual Removing the Battery 1. Follow the procedures in Before Working Inside Your Computer . 2. Slide the battery release latch into the unlock position. 3. Slide and remove the battery from the computer. WARNING: Before working inside your computer, read the safety information that shipped [...]

  • Page 3

    Replacing the Battery To replace the battery, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 4

    Back to Contents Page Keyboard Dell Latitude 2120 Service Manual Removing the Keyboard 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the screws that secure the keyboard. 4. Open the display and then push a flathead screwdriver through the screw socket from where you removed the keyboard screw. W[...]

  • Page 5

    5. Starting in the top left corner of the keyboard, lift the keyboard up, and then flip the keyboard. 6. Disconnect the keyboard data cable and remove the keyboard from the computer.[...]

  • Page 6

    Replacing the Keyboard To replace the keyboard, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 7

    Back to Contents Page Access Panel Dell Latitude 2120 Service Manual Removing the Access Panel 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access - panel screws under the keyboard. 5. Remove the access - panel screws on the bottom of the computer. WARNING: Before w[...]

  • Page 8

    6. Starting near the hinges, lift the access panel and remove it from the computer. Replacing the Access Panel To replace the access panel, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 9

    Back to Contents Page Memory Modules Dell Latitude 2120 Service Manual Removing the Memory Modules 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Pry the retention clips away from the memory module. 6. Remove the memory module from the computer. WARN[...]

  • Page 10

    Replacing the Memory Modules To replace the memory modules, insert the memory module in the memory slot at an angle, then press down the memory module to snap the memory module in place. Back to Contents Page[...]

  • Page 11

    Back to Contents Page Coin - Cell Battery Dell Latitude 2120 Service Manual Removing the Coin - Cell Battery 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Disconnect the coin - cell battery cable from the system board. 6. Remove the coin - cell batt[...]

  • Page 12

    Replacing the Coin - Cell Battery To replace the coin - cell battery, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 13

    Back to Contents Page WLAN Card Dell Latitude 2120 Service Manual Removing the WLAN Card 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Disconnect the WLAN antenna cables from the card. 6. Remove the screw that secures the WLAN card to the system boa[...]

  • Page 14

    7. Remove the WLAN card from the computer. Replacing the WLAN Card To replace the WLAN card, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 15

    Back to Contents Page WWAN Card Dell Latitude 2120 Service Manual Removing the WWAN Card 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Disconnect the WWAN antenna cables from the card. 6. Remove the screw that secures the WWAN card to the system boa[...]

  • Page 16

    7. Remove the WWAN card from the computer. Replacing the WWAN Card To replace the WWAN card, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 17

    Back to Contents Page Hard Drive/Hard - Drive Brackets Dell Latitude 2120 Service Manual Removing the Hard Drive/Hard - Drive Brackets 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Remove the screws that secure the hard drive to the system board. 6.[...]

  • Page 18

    7. Lift the hard drive up to remove it from the computer. 8. Remove the hard - drive bracket screws from both sides of the hard drive.[...]

  • Page 19

    9. Remove the hard - drive bracket from the hard drive. Replacing the Hard Drive/Hard - Drive Brackets To replace the hard drive/hard - drive brackets, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 20

    Back to Contents Page Heatsink Dell Latitude 2120 Service Manual Removing the Heatsink 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Disconnect the speaker cable from the system board and remove it from its routing path. 6. Disconnect the fan power [...]

  • Page 21

    7. Loosen the captive screws on the heat sink. 8. Lift the heat sink up to remove it from the computer.[...]

  • Page 22

    Replacing the Heatsink To replace the heatsink, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 23

    Back to Contents Page DC Power Cable Dell Latitude 2120 Service Manual Removing the DC Power Cable 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Disconnect the DC power cable from the system board. 6. Remove the screw that secures the DC power - cab[...]

  • Page 24

    7. Lift up to remove the DC power cable from the computer. Replacing the DC Power Cable To replace the DC power cable, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 25

    Back to Contents Page Display Assembly Dell Latitude 2120 Service Manual Removing the Display Assembly 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Disconnect the speaker cable from the system board and remove it from its routing path. 6. Disconnec[...]

  • Page 26

    7. Disconnect the display data cable from the system board. 8. Remove the screws that secure the display assembly.[...]

  • Page 27

    9. Remove the display assembly by sliding it toward the base of the computer. Replacing the Display Assembly To replace the display assembly, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 28

    Back to Contents Page Display Bezel Dell Latitude 2120 Service Manual Removing the Display Bezel 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Remove the display assembly . 6. Using a plastic scribe, pry and remove the rubber screw - covers from the[...]

  • Page 29

    8. Starting at the bottom of the display bezel, disengage the display bezel from the display assembly, and then remove the display bezel. Replacing the Display Bezel To replace the display bezel, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 30

    Back to Contents Page Display- Hinge Covers Dell Latitude 2120 Service Manual Removing the Display - Hinge Covers 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Remove the display assembly . 6. Remove the display bezel . 7. Pivot the hinge cover away[...]

  • Page 31

    Back to Contents Page Camera Dell Latitude 2120 Service Manual Removing the Camera 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Remove the display assembly . 6. Remove the display bezel . 7. Disconnect the cable from the camera module. 8. Peel the [...]

  • Page 32

    9. Remove the screws that secure the camera to the display assembly. 10. Lift the camera module up to remove it from the display assembly.[...]

  • Page 33

    Replacing the Camera To replace the camera, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 34

    Back to Contents Page Display Panel/Bracket Dell Latitude 2120 Service Manual Removing the Display Panel/Bracket 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Remove the display assembly . 6. Remove the display bezel . 7. Disconnect the display touc[...]

  • Page 35

    9. Remove the display data cable from the display panel. 10. Remove the display panel from the display assembly.[...]

  • Page 36

    11. Remove the screws that secure the display bracket, and then remove the display bracket from the display assembly. Replacing the Display Panel/Bracket To replace the display panel/bracket, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 37

    Back to Contents Page Display Cable Dell Latitude 2120 Service Manual Removing the Display Cable 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Remove the display assembly . 6. Remove the display bezel . 7. Remove the display panel . 8. Disconnect th[...]

  • Page 38

    10. Remove the display cable from the display assembly. Replacing the Display Cable To replace the display cable, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 39

    Back to Contents Page Display Hinges Dell Latitude 2120 Service Manual Removing the Display Hinges 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Remove the display assembly . 6. Remove the display bezel . 7. Remove the display panel . 8. Loosen the [...]

  • Page 40

    Replacing the Display Hinges To replace the display hinges, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 41

    Back to Contents Page System Board/Bluetooth Module Dell Latitude 2120 Service Manual Removing the System Board/Bluetooth Module 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Remove the hard drive . 6. Remove the WWAN card . 7. Remove the WLAN card [...]

  • Page 42

    12. Starting from the side where the USB ports are located, lift up the system board and remove the system board. 13. Disconnect the Bluetooth module cable from the system board.[...]

  • Page 43

    14. Remove the screw that secures the Bluetooth module to the system board. 15. Remove the Bluetooth module from the system board.[...]

  • Page 44

    Replacing the System Board/Bluetooth Module To replace the system board/Bluetooth module, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 45

    Back to Contents Page Secure Digital (SD) Card Dell Latitude 2120 Service Manual Removing the SD Card 1. Follow the procedures in Before Working Inside Your Computer . 2. Press in on the SD Card to release it. 3. Pull and remove the SD Card from the computer. WARNING: Before working inside your computer, read the safety information that shipped wit[...]

  • Page 46

    Replacing the SD Card To replace the SD Card, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 47

    Back to Contents Page SIM Card Dell Latitude 2120 Service Manual Removing the SIM Card 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Press in on the SIM Card to release it. 4. Pull and remove the SIM Card from the computer. WARNING: Before working inside your computer, read the safety information that [...]

  • Page 48

    Replacing the SIM Card To replace the SIM Card, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 49

    Back to Contents Page Hard Drive Accelerator Card Dell Latitude 2120 Service Manual Removing the Hard Drive Accelerator Card 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the battery . 3. Remove the keyboard . 4. Remove the access panel . 5. Remove the screw that secures the hard drive accelerator card to the system bo[...]

  • Page 50

    7. Remove the hard drive accelerator card metal bracket from the card. Replacing the Hard Drive Accelerator Card To replace the hard drive accelerator card, perform the above steps in reverse order. Back to Contents Page[...]

  • Page 51

    Back to Contents Page System Setup Dell Latitude 2120 Service Manual  Overview  Entering System Setup  Boot Menu  Navigation Keystrokes  System Setup Menu Options  Overview Use System Setup to: l Change the system configuration information after you add, change, or remove any hardware in your computer l Set or chang[...]

  • Page 52

    System Information ¡ Memory Technology ¡ DIMM A Size l Processor Information ¡ Processor Type ¡ Core Count ¡ Processor ID ¡ Current Clock Speed l Device Information ¡ Primary Hard Drive ¡ Video Controller ¡ Video BIOS Version ¡ Video Memory ¡ Panel Type ¡ Native Resolution ¡ Audio Controller ¡ Wi - Fi Device ¡ Cellular Device ¡ Blue[...]

  • Page 53

    NOTE: Successful password changes take effect immediately. Internal HDD Password This field lets you set, change, or delete the password on the system's internal hard disk drive (HDD). Successful changes take place immediately and require a system restart. The HDD password travels with the hard drive, so the HDD is protected even when installe[...]

  • Page 54

    Back to Contents Page Fast Boot Allows you to enable or disable the Fast Boot feature. The following options are available: l Minimal — Boot quickly unless the BIOS has been updated, memory changed, or the previous POST did not complete. l Thorough — Do not skip any steps in the boot process. l Auto — Allow the operating system to control thi[...]

  • Page 55

    Back to Contents Page Diagnostics Dell Latitude 2120 Service Manual  Device Status Lights  Battery Status Lights  Battery Charge and Health  Keyboard Status Lights  LED Error Codes  Device Status Lights  Battery Status Lights If the computer is connected to an electrical outlet, the battery light operates as foll[...]

  • Page 56

    Back to Contents Page LCD panel error 1. Reseat the LCD cable. 2. Replace the LCD panel. 3. Replace the video card/system board. OFF - FLASH - OFF Memory compatibility error 1. Install compatible memory modules. 2. If two modules are installed, remove one and test. Try the other module in the same slot and test. Test the other slot with both module[...]

  • Page 57

    Back to Contents Page Adding and Replacing Parts Dell Latitude 2120 Service Manual Back to Contents Page  Secure Digital Card  SIM Card  Access Panel  Coin - Cell Battery  WWAN Card  Heatsink  DC Power Cable  Display - Hinge Covers  Display/Display Brackets  Display Hinge  System Boa[...]

  • Page 58

    Back to Contents Page  Specifications  System Information  Memory  Audio  Ports and Connectors  Display  Touchpad  AC Adapter  Physical  Processor  Video  Communications  Drives  Keyboard  Battery  Environmental NOTE: Offerings may vary by region. For more [...]

  • Page 59

    Hard drive 2.5" SATA 2 HDD Display Type WSVGA (1024 x 600 pixels) and HD (1366 x 768 pixels),highdefinition,antiglare(AG),whitelight - emitting diode (WLED) Size 10.1 inches Active area (X/Y)  WSVGA 222.72 mm x 125.28 mm (8.76 inches x 4.93 inches) HD 222.73 mm x 125.22 mm (8.76 inches x 4.93 inches) Dimensions Heigh[...]

  • Page 60

    Back to Contents Page  Storage – 40°Cto~65°C( – 40°Fto~149°F) Coin - cell battery 3 V CR2032 lithium coin cell ACAdapter Input voltage 100 VAC – 240 VAC Input current (maximum) 1.5 A Input frequency 50 Hz – 60 Hz Output power 65 W Output current 4.34 A (maximum at 4 - second pulse) 3.34 A (continuous)[...]

  • Page 61

     Working on Your Computer Dell™Latitude™2120ServiceManual Before Working Inside Your Computer Use the following safety guidelines to help protect your computer from potential damage and to help to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that the following conditions ex[...]

  • Page 62

    l In Windows ® 7: Click Start , then click Shut Down . l In Windows Vista ® : Click Start , then click the arrow in the lower - right corner of the Start menu as shown below, and then click Shut Down . l In Windows ® XP: Click Start → Turn Off Computer → Turn Off . The computer turns off after the operating system shutdown process is c[...]