Touchpad button board
Description Spare part number
Touchpad button board 768140-001
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 35).
5. Remove the following components:
a. Service doors (see
Service door on page 36).
b. Keyboard (see
Keyboard on page 46)
c. Hard drive (
Hard drive on page 38)
d. Optical drive (
Optical drive on page 42)
e. Top cover (see
Top cover on page 49)
Remove the touchpad button board:
1. Position the top cover upside-down.
2. Disconnect the cable from the touchpad (1).
3. Disconnect the cable from the card reader board (2).
4. Remove the Phillips PM2.0×3.0 screw (3) that secures the button board to the top cover.
5. Lift the right side of the touchpad button board up, and then pull it to the right to remove it from the
slot (4).
62 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
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