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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

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