Power button board
Description Spare part number
Power button board
NOTE: The power button board cable is available using spare part number 833143-001.
833140-001
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 34).
5. Remove the optical drive (see Optical drive on page 35).
6. Remove the bottom cover (see Bottom cover on page 38).
7. Remove the system board (see System board on page 56).
To remove the power button board:
1. Remove the Phillips PM2.5×5.0 screw (1) from the left hinge.
2. Rotate the left hinge upward.
3. Remove the Phillips PM2.0×2.5 screw (3) that secures the power button board to the computer.
Component replacement procedures 61
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