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TouchPad on/off button board
Description Spare part number
TouchPad on/off button board (includes cables) 486630-001
Before removing the TouchPad on/off 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 40).
5. Remove the following components:
a. Optical drive (see
Optical drive on page 41)
b. Hard drive (see
Hard drive on page 43)
c. Keyboard (see
Keyboard on page 52)
d. Keyboard cover (see
Keyboard cover on page 54)
e. Display assembly (see
Display assembly on page 57)
f. Top cover (see
Top cover on page 64)
Remove the TouchPad on/off button board:
1. Turn the top cover upside down, with the front toward you.
2. Release the ZIF connector on the TouchPad button board to which the TouchPad on/off board
cable is attached, and disconnect the TouchPad on/off board cable (1) from the TouchPad button
board.
66 Chapter 4 Removal and replacement procedures