Power button board
Description Spare part number
Power button board assembly 827035-001
Power button board cable (included in Cable Kit) 828418-001
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 32).
5. Remove the following components:
a. Service doors (see Service doors on page 33)
b. Optical drive (Optical drive on page 35)
c. Hard drive (Hard drive on page 37)
d. Keyboard (see Keyboard on page 43)
e. 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 power button board (1).
3. Remove the Phillips PM2.0×3.0 screw (2) that secures the board to the top cover.
54 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
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