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Power button board
Description Spare part number
Power button board 443153-001
Before removing the power 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 37).
5.
Remove the switch cover (see
Switch cover on page 50).
6.
Remove the keyboard (see
Keyboard on page 52).
Remove the power button board:
1. Disconnect the power button board cable (1) from the system board.
2. Remove the power button board cable from the clips (2) built into the top cover.
3. Remove the Phillips PM2.5×5.0 screw (3) that secures the power button board to the computer.
4. Disconnect the microphone cable (1) and the speaker cable (2) from the power button board.
54 Chapter 4 Removal and replacement procedures