Button board
Description Spare part number
Button board 441632-001
Before removing the 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 32).
5.
Remove the memory/WLAN module compartment cover (see
Memory module on page 35).
6.
Remove the following components:
a.
Switch cover (see
Switch cover on page 41)
b.
Keyboard (see
Keyboard on page 43)
Remove the button board:
1. Release the ZIF connector (1) to which the button board cable is connected, and disconnect the
cable (2) from the system board.
2. Remove the Phillips PM2.0×3.0 screw (3) that secures the button board to the computer.
3. Remove the button board (4).
Reverse this procedure to reassemble and install the button board.
46 Chapter 4 Removal and replacement procedures
