Power button board
Description Spare part number
Power button with connector cable 486853-001
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 55).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 59)
b. Optical drive (see
Optical drive on page 57)
c. Keyboard (see
Keyboard on page 72)
d. Keyboard cover (see
Keyboard cover on page 76)
e. Display assembly (see
Display assembly on page 83)
f. Top cover (see
Top cover on page 95)
g. System board (see
System board on page 110)
Remove the power button board:
1. Disconnect the low insertion force (LIF) cable (1) from the power button board.
2. Remove the Phillips PM2.0×4.0 screw (2) that secures the power button board to the system board.
Component replacement procedures 113
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