4–22 Maintenance and Service Guide
Removal and replacement procedures
Power button board
Before removing the display assembly, 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 4-7).
5. Disconnect the wireless antenna cables from the wireless module (see “Wireless module” on page 4-14).
6. Remove the keyboard (see “Keyboard” on page 4-17).
7. Remove the switch cover (see “Switch cover” on page 4-20).
Remove the power button board:
1. Disconnect the power button board cable 1 from the power button board.
2. Remove the Phillips PM2.0×3.0 screw 2 that secures the power button board to the switch cover.
3. Remove the power button board 3.
Reverse this procedure to install the power button board.
Description Spare part number
Power button board 531215-001
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