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TouchPad button board
Description Spare part number
TouchPad button board (includes bracket and cable) 640885-001
Before removing the TouchPad button board, remove the following components:
1. Battery (see
Battery on page 40)
2. Service access cover (see
Service access cover on page 41)
3. Hard drive (see
Hard drive on page 42)
4. Optical drive (see
Optical drive on page 44)
5. Keyboard (see
Keyboard on page 50)
6. Top cover (see
Top cover on page 52)
Remove the TouchPad button board:
1. Release the zero insertion force (ZIF) connector (1) to which the TouchPad button board cable is
attached, and then disconnect the cable (2) from the TouchPad.
2. Slide the TouchPad bracket to the left (3) and then remove it.
3. Remove the TouchPad button board (4).
Reverse the above procedure to reassemble and install the TouchPad button board.
58 Chapter 4 Removal and replacement procedures ENWW