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Power button board
Description Spare part number
Power button board 531860-001
Before removing the power button board, 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 47).
5. Remove the following components:
a. Keyboard (see
Keyboard on page 60)
b. Keyboard cover (see
Keyboard cover on page 63)
Remove the power button board:
1. Turn the keyboard cover over.
2. Remove the Phillips 2.0×3.0 screw (1).
3. Disconnect the num lock cable (2).
4. Remove the power button board (3).
Reverse this procedure to install the power button board.
Component replacement procedures 65