Remove the power button board:
1.Turn the top cover upside down, with the front toward you.
2.Remove the Phillips screw (1) and tape that secure the power button board to the top cover.
3.Release the clips, lift the power button board (2), and carefully slide the power button cable out from the guides (3) to remove the power button board.
Reverse this procedure to install the power button board.
Component replacement procedures 31