Power button board
Description Spare part number
Power button board (includes cable) 730959-001
Before removing the power button board, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover (see Service cover on page 51), and then remove the following components:
a. Battery (see Battery on page 53)
b. Keyboard (see Keyboard on page 63)
c. Base enclosure (see Base enclosure on page 75)
d. Fan (see Fan on page 77)
e. Heat sink (see Heat sink on page 84)
Remove the power button board:
1. Release the ZIF connector (1) to which the power button board cable is connected, and then disconnect
the power button board cable from the system board.
2. Remove the Phillips PM2.0×3.0 broad head screw (2) that secures the power button board to
the top cover.
88 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ENWW
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