FRU Removal and Replacement Procedures

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The following paragraphs contain field service-level removal/replacement procedures for the Notebook.

Caution: Prior to removing any of the internal FRUs in the notebook, remove the AC Adapter, battery, floppy and hard drives and all external options installed on the notebook.

6.5.1 Removing/Replacing the Notebook Battery Pack

The procedure for removing and replacing the battery pack(s) is as follows:

  1. Turn off the computer and disconnect the AC adapter and any external devices from the notebook.
  2. Turn the notebook over and lay the notebook on a flat surface.
  3. Locate the battery release button on the bottom of the notebook. Press the button in the direction of the arrow while sliding the battery out of its battery bay.

Note: Refer to Step 2 in Paragraph 6.5.2 for information on removing a secondary battery pack from the floppy drive cavity.

6.5.2 Removing/Replacing the Floppy Drive/CD-ROM

To remove and replace the Floppy Drive or CD-ROM Drive, perform the following procedure:

  1. Power the notebook off; disconnect the AC adapter from the notebook (if attached) and remove the battery pack(s) as described in Paragraph 6.5.1.
  2. Locate the floppy release button. Press and hold the button in the direction of the arrow while sliding the floppy drive (or other installed device such as CD-ROM drive or battery) out of the notebook bay.

Caution: When removing the floppy drive assembly or CD-ROM drive assembly, grasp it by its sides; otherwise damage to the floppy drive can occur.

  1. The floppy drive assembly can be further disassembled by removing the Phillips-head screws from the sides of the floppy drive assembly; lifting off the cover and lifting out the floppy drive and cable connector (ZIF connector type). Unplug the cable at the ZIF connector.
  2. 5.3 Removing/Replacing the Hard Drive

The procedure for removing and replacing the hard drive assembly is as follows:

  1. Power down the notebook, remove the battery packs, and disconnect the AC adapter, if installed.
  2. Disconnect any peripheral device interface cables from the external interface connectors and remove any installed PCMCIA options.
  3. Locate the HDD release button on the side of the notebook computer; press and hold the release button in the direction of the arrow while sliding the HDD assembly out of its bay.
  4. Replacement is essentially the reverse of Steps 1 through 3.
  5. 5.4 Removing/Replacing Dual Inline Memory Modules (DIMMs)

To remove and replace the expansion memory, use the following procedure:

1 . Power down the notebook; disconnect the AC Adapter (if attached) and remove the notebook battery packs as described in Paragraph 6.5.1.

  1. Using a small Phillips head screw driver, remove the two screws that secure the RAM Access Door to the base and remove the door.
  2. Push the two plastic springs away from the board edge and remove the board using a slight rocking motion.
  3. When installing a DIMM board, insert the edge of the board into the rear of its connector using a slight rocking motion at an angle to the surface of the board.
  4. Once the DIMM is fully inserted in the connector, push downward on both sides of the board to snap it in place.
  5. Repeat steps 4 and 5 for each DIMM module being installed. Then replace hardware earlier removed in Steps 1 and 2.
  6. 5.5 Removing/Replacing the Keyboard Assembly

The procedure for removing and replacing the keyboard assembly is as follows:

  1. Power the notebook off; disconnect the AC Adapter from the notebook (if attached) and remove the battery pack(s) as described in Paragraph 6.5.1.
  2. The top edge of the keyboard is held in place by latches above the PrtSc and F2 keys. Slide the latches toward the outer edges of the notebook.
  3. Using a small straight-blade screwdriver, lift the rear edge of the keyboard and lay the keyboard over on the glidepad.
  4. Unlock the keyboard ZIF connector on the main board and remove the keyboard cable; lift the keyboard out of the unit.
  5. When installing the replacement keyboard, essentially reverse Steps 1 through 4.

Left side release

Figure 6-3 Removing/Replacing the Keyboard Assembly

6.5.6 Removing/Replacing the Display Assembly

To access FRUs in the display assembly, remove the display assembly as described in the following procedure:

  1. Remove the keyboard assembly as described in Paragraph 6.5.5.
  2. Lean the LCD partially back (do not lean the LCD completely back as it may cause the LCD status cover to bind).
  3. Using both thumbs, press the front edge of the LCD status cover to release two latches on the rear edge of the cover. With a rocking motion, gently remove the LCD cover (Note: You may have to adjust the LCD cover and lift upward on the front edge of the LCD status cover).
  4. Remove the screw that secures the ground cable to the Main Board (located directly below the processor).
  5. Locate the display interconnect (hinge) board (plugs vertically into the main board just to the left of the CPU).
  6. Using two pairs of pliers, lift upwards on the left and right side of the display cable interface board and remove the board from the unit while pulling the ground cable from the base assembly.
  7. Lay the Display Assembly completely back and remove the four Phillips-head screws that secure the display hinges to the Base Case Assembly.
  8. Ensure that the display cables are free from the Top Case Assembly and remove the Display Assembly.
  9. Replacement is the reverse of Steps 1 through 8 above.
  10. 5.7 Removing and Replacing the LCD Status Assembly

To remove the LCD Status Assembly, perform the following procedure:

  1. Remove the keyboard assembly as described in paragraph 6.5.5.
  2. Lean the LCD partially back (do not lean the LCD completely back as it may cause the LCD status cover to bind).
  3. Using both thumbs, press the front edge of the LCD status cover to release two latches on the rear edge of the cover. Press down at air vent while lifting tabs in front. With a rocking motion, gently remove the LCD cover (Note: You may have to adjust the LCD cover and lift upward on the front edge of the LCD status cover).
  4. Remove the two Phillips-head screws and clips that secure the status LCD assembly to the base.
  5. Lower the LCD cover assembly and unlock the ZIF connector on the back of the LCD status assembly using a plastic stick.
  6. Lift the status LCD assembly out of the unit.
  7. Reinstallation of the status LCD assembly is the reverse of Steps 1 through 6.
  8. 5.8 Removing/Replacing the Top Case Assembly

To remove and replace the top case assembly assembly, perform the following procedure:

  1. Remove the keyboard assembly as described in Paragraph 6.5.5.
  2. Remove the display assembly as described in Paragraph 6.5.6.
  3. Remove the LCD status assembly as described in Paragraph 6.5.7.
  4. Unplug the small cable located next to the keyboard ZIF connector.
  5. Flip the unit over and remove the eight screws from the base. Do Not remove the flat head screw at the rear of the unit next to the switch.

Note: You do not need to remove the two screws holding the RAM access door to the base assembly.

  1. Remove the screw to the right of the display cable interface board (located behind the status LCD assembly).
  2. Turn the unit over and lift the rear of the top case assembly one to two inches; then pull the top case towards you while keeping the base in place.
  3. Reinstallation of the top case assembly is the reverse of Steps 1 through 7 above.
  4. 5.9 Removing/Replacing the Glidepad Assembly

To remove/replace the glidepad assembly, perform the following procedure:

  1. Remove the top case assembly as described in Paragraph 6.5.8.
  2. Flip the top case assembly over and lay it on a flat surface.
  3. Remove the four screws that secure the glidepad board assembly to the plastics.
  4. Carefully lift the glidepad board out of the plastics. Note that the glidepad is tethered to the button board by a cable and LIF connectors.
  5. Replacement of the glidepad assembly is the reverse of Steps 1 through 4 above.
  6. 5.10 Removing/Replacing the IR/Sound Assembly

To remove and replace the IR/sound assembly, perform the following procedure:

  1. Remove the top case assembly as described in Paragraph 6.5.8.
  2. Some versions of the IR/sound board contain two cables that connect to the left side of the main board. Disconnect these cables, if present.
  3. Remove three screws that hold the IR/sound board to the unit (two screws are located at the rear which secure a rear bezel and one screw is in the front).
  4. Grasp the front left corner and front right corner of the board; remove the board from the unit.
  5. Replacement of the IR/sound board assembly is essentially the reverse of Steps 1 through 4 above.

Note: Ensure that the I/O port address switch settings on the original board match the setting of the replacement board (refer to Figure 5-3 in Section 5).

6.5.11 Removing/Replacing the Power Supply Board

To remove and replace the Power Supply Board, perform the following procedure:

  1. Remove the Top Case Assembly as described in Paragraph 6.5.8
  2. Remove the holding screw on the left side of the board.
  3. Firmly grasp the board and use a side-to-side rocking motion while lifting up on the board.
  4. When reinstalling the Power Supply Board, ensure that the plastic cap that rests on top of the Closed Cover Switch has the slanted surface facing the front of the Notebook.
  5. 5.12 Removing/Replacing the CMOS Battery

To remove and replace the CMOS battery, use the following procedure.

Note: Replacement of the CMOS battery will result in the loss of customer-

definable settings. Replace CMOS battery only if the battery is defective.

  1. Remove the top case assembly as described in Paragraph 6.5.8.
  2. Disconnect the battery cable from the main board; lift the battery from the base.
  3. Reinstall replacement battery.
  4. 5.13 Removing/Replacing the Main Board

To remove and replace the main board assembly, perform the following procedure:

  1. Remove the top case assembly as described in Paragraph 6.5.8.
  2. Using a 5 mm hexdriver, remove the four hex standoffs (shortest is located next to the PS/2 connector and the longest is located at the rear of the unit).
  3. Remove the four Phillips head screws securing the main board to the base plastics.
  4. Lift up on the front edge of the main board until it clears the battery cavity; then pull the main board forward and out of the plastics.
  5. Reassembly is the reverse of steps 1 through 4 above.

New P/S Board

Figure 6-4 Replacing the Main Board Assembly

6.5.14 Removing/Replacing HDD Connector Board

To remove and replace the HDD connector board Assembly, perform the following procedure:

  1. Remove the top case assembly as described in Paragraph 6.5.8.
  2. Remove the main board assembly as described in Paragraph 6.5.13.
  3. Turn the main board over and lay on a flat surface.
  4. Using a small Phillips screwdriver, remove the two screws securing the HDD connector board to the main board.
  5. Replacement is the reverse of Steps 1 through 4.
  6. 5.15 Removing/Replacing Inverter Board

To remove and replace the inverter board assembly, perform the following procedure:

  1. Remove the top case assembly as described in Paragraph 6.5.8.
  2. Remove the main board assembly as described in Paragraph 6.5.13.
  3. Turn the main board over and lay on a flat surface.
  4. Unplug the speaker cable assembly connected to the display interface board.
  5. Remove the four rubber screw covers and the four screws beneath the covers.
  6. Pull on the inside edges of the bezel to remove it starting with the bottom of the bezel.
  7. Disconnect the connectors at the top and bottom of the inverter board.
  8. Use a small Phillips-head screwdriver to remove the two screws holding the inverter board to the plastics. Remove the inverter board.
  9. To replace the inverter board, reverse Steps 1 through 8.

Caution: Prior to removing the LCD bezel, ensure that the AC adapter is disconnected and that all internal battery packs are removed. Failure to observe this precaution could expose you to dangerous high voltages.

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