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5. Lift the power button board (4) to remove it.
Reverse this procedure to install the power button board.
Application button board
Description Spare part number
Application button board 652516-001
Before removing the application 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 45).
5. Remove the service access cover (see
Service access cover on page 46).
6. Remove the optical drive (see
Optical drive on page 58) or upgrade bay hard drive (see Upgrade
bay hard drive on page 60).
7. Remove the keyboard (see
Keyboard on page 65).
8. Remove the top cover (see
Top cover on page 81).
94 Chapter 4 Removal and replacement procedures