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TouchPad board and TouchPad button board
NOTE: The top cover, spare part number 495399-001, includes the TouchPad board and cable, and
the TouchPad button board and cable.
Before removing the TouchPad board and 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 39).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 40)
b. Optical drive (see
Optical drive on page 46)
c. Keyboard (see
Keyboard on page 50)
d. Switch cover (see
Switch cover on page 48)
e. Speaker (see
Speaker on page 53)
f. Display lid switch module (see
Display lid switch module on page 54)
g. Display assembly (see
Display assembly on page 55)
h. Top cover (see
Top cover on page 60)
Remove the TouchPad board and TouchPad button board:
1. Turn the top cover upside down, with the front toward you.
2. Release the ZIF connectors on the TouchPad button board (1) and TouchPad board (2) to which
the TouchPad board cable is connected.
3. Disconnect and remove the TouchPad board cable (3).
Component replacement procedures 63