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TouchPad button board

Description Spare part number

TouchPad button board (includes TouchPad button board cable and TouchPad cable) 720672-001

Before removing the TouchPad button board, follow these steps:

1. Turn off 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 the power from the computer by unplugging the power cord from the computer.

3. Disconnect all external devices from the computer.

4. Remove the battery (see

Battery on page 47), and then remove the following components:

a. Optical drive (see

Optical drive on page 48)

b. Hard drive (see

Hard drive on page 49)

c. Keyboard (see

Keyboard on page 56)

d. Top cover (see

Top cover on page 60)

Remove the TouchPad button board:

1. Turn the top cover upside down with the front toward you.

2. Release the ZIF connector (1) to which the TouchPad board ribbon cable is attached, and then

disconnect the TouchPad board ribbon cable from the TouchPad board.

3. Detach the TouchPad button board ribbon cable (2) from the TouchPad board. (The TouchPad

button board ribbon cable is attached to the TouchPad board with double-sided adhesive.)

4. Release the two clips (3) that secure the TouchPad button board to the top cover.

5. Remove the TouchPad button board (4).

Reverse this procedure to install the TouchPad button board.

64 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts

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