Button board
Description Spare part number
Button board (includes cable) 716735-001
Before removing the 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 battery (see
Battery on page 33), and then remove the following components:
a. Service cover (see
Service cover on page 34)
b. Keyboard (see
Keyboard on page 44)
c. Bottom cover (see
Bottom cover on page 48)
d. Right speaker (see
Speakers on page 50)
Remove the button board:
1. Turn the computer right side up, with the front toward you.
2. Open the computer.
3. Release the ZIF connector (1) to which the button board cable is attached, and then disconnect
the button board cable (2) from the system board.
4. Close the computer.
52 Chapter 4 Removal and replacement procedures
