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Power button board
Description Spare part number
Power button board (includes cable) 767254-001
Before removing the power 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 31), and then remove the following components:
a. Optical drive (see
Optical drive on page 32)
b. Top cover (see
Top cover on page 39)
Remove the power button board:
1. Turn the top cover upside down, with the front toward you.
2. Remove the Phillips PM4.5×2 broadhead screw (1) that secures the power button board to
the top cover.
3. Remove the power button board (2) with cable (the cable was disconnected from the system board
when removing the top cover).
Reverse this procedure to install the power button board.
46 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts