3.
Swing the display hinges (2) up and back until the top cover is free for removal.
4.
Slide the top cover forward (3).
5.
Remove the top cover (4).
Reverse this procedure to install the top cover.
Function button board
Description Spare part number
Function button board (includes cable) 685409-001
Before removing the function 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 44), and then remove the following components:
a. Service cover (see
Service cover on page 46)
b. Bluetooth module (see
Bluetooth module on page 48)
c. Speaker assembly (see
Speaker assembly on page 50)
Component replacement procedures
83
