TouchPad button board
Description Spare part number
TouchPad button board not spared
TouchPad button board cable L20451-001
Before removing the TouchPad button board, follow these steps:
1. Shut down the computer.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the optical drive (see Optical drive on page 33).
5. Remove the bottom cover (see Bottom cover on page 37).
6. Remove the battery (see Battery on page 40).
Remove the TouchPad button board:
1. Disconnect the system board cable from the ZIF connector on the TouchPad button board (1).
2. Disconnect the TouchPad cable from the ZIF connector on the TouchPad button board (2).
3. Remove the two Phillips M2.0×3.0 screws (3) that secure the board to the computer.
4. Remove the TouchPad button board from the computer (4).
Reverse this procedure to install the TouchPad button board.
Component replacement procedures 53