Power button board
Description Spare part number
Power button board assembly 768203-001
Before removing the power button board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o 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 rst 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 30).
5. Remove the following components:
a. Service door (see Service door on page 31)
b. Keyboard (see Keyboard on page 40)
c. Hard drive (Hard drive on page 32)
d. Top cover (see Top cover on page 48)
Remove the power button board:
1. Position the top cover upside-down.
2. Disconnect the cable from the board (1).
3. Remove the Phillips PM2.5×3.0 screw (2) that secures the power button board to the top cover.
4. Slide the board upward to disengage it from the tabs (3).
Component replacement procedures 53
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