A SERVICE OF

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TouchPad button board
Description Spare part number
TouchPad button board (includes bracket and cable) 641143-001
Before removing the TouchPad button board, remove the following components:
1. Battery (see
Battery on page 48)
2. Service door (see
Service door on page 49)
3. Hard drive (see
Hard drive on page 50)
4. Optical drive (see
Optical drive on page 52)
5. Keyboard (see
Keyboard on page 57)
6. Top cover (see
Top cover on page 60)
Remove the TouchPad button board:
1. Position the top cover upside down, with the front toward you.
2. Release the ZIF connector (1), and then disconnect the TouchPad LED ZIF cable (2) from the
TouchPad button.board.
3. Remove the Phillips 2.0×3.0 screw (3) that secures the TouchPad bracket to the top cover.
4. Lift up and remove the TouchPad button board bracket (4). The TouchPad button is fused onto the
TouchPad button board bracket.
Component replacement procedures
65