Maintenance and Service Guide

Power button board
Description Spare part number
Power button board 926529-001
Power button board cable 926517-001
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 optical drive (see Optical drive on page 34).
6. Remove the bottom cover (see Bottom cover on page 41).
7. Remove the fan/heat sink (see Heat sink assembly on page 59).
8. Remove the display (see Display assembly on page 67).
To remove the power button board:
1. Disconnect the cable from the power button board (1).
2. Remove the Phillips PM2.0×2.0 screw (2) that secures the board to the computer.
3. Remove the power button board from the computer (3).
Reverse this procedure to install the power button board.
Component replacement procedures 79