TouchPad button board
Description Spare part number
TouchPad button board (includes cable) 664993-001
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 battery (see
Battery on page 33), and then remove the following components:
a. Service cover (see
WLAN module on page 38)
b. Keyboard (see
Keyboard on page 48)
c. Top cover (see
Top cover on page 56)
Remove the TouchPad button board and cable:
1. Turn the top cover upside down, with the front edge toward you.
2. Release the ZIF connector to which the TouchPad cable is attached, and then disconnect the
TouchPad cable (1) from the TouchPad button board.
3. Remove the two Phillips PM2.0×3.8 screws (2) that secure the TouchPad button board to the
top cover.
4. Remove the TouchPad button board (3) and cable.
Reverse this procedure to install the TouchPad button board and cable.
60 Chapter 4 Removal and replacement procedures
