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10.
Remove the top cover (2).
Reverse this procedure to install the top cover.
Power button board
Description Spare part number
Power button board (does not include cable)
NOTE: The power button board cable is not included in the power button board spare part kit. The
power button board cable is included in the Cable Kit, spare part number 640422-001.
640439-001
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 59), and then remove the following components:
●
Optical drive (see
Optical drive on page 60)
●
Hard drive (see
Hard drive on page 62)
●
Keyboard (see
Keyboard on page 70)
●
Top cover (see
Top cover on page 74)
Remove the power button board:
1. Turn the top cover upside down, with the front toward you.
2.
Release the power button board cable from the clip (1) built into the top cover.
Component replacement procedures
77