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TouchPad module
Description Spare part number
TouchPad button board (includes cable) 689946-001
TouchPad button board (includes cable) 712663–001
Before removing the TouchPad button board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn
the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4. Remove the display panel (see
Display panel on page 54).
5. Remove the base enclosure (see
Base enclosure on page 29).
Remove the TouchPad button board and cable:
1. Turn the top cover upside down, with the back edge toward you.
2. Disconnect the TouchPad cable (1) that secures the TouchPad to the system board.
3. Remove the 5 Phillips PM screws (2) that secure the TouchPad button board to the top cover.
4. Lift the TouchPad button board.(1).
48 Chapter 4 Removal and replacement procedures