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5.
Remove the bottom cover from the top cover.
Reverse this procedure to install the bottom cover.
Power button board
Description Spare part number
Power button board (includes cable) 730899-001
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 battery (see
Battery on page 27), and then remove the following components:
a. Service cover (see
Service cover on page 28)
b. Display assembly (see
Display assembly on page 37)
c.
Bottom cover (see
Bottom cover on page 42)
Remove the power button board:
1. Remove the two Phillips PM2.0×2.75 screws (1) that secure the power button board to the
top cover.
2.
Detach the power button board cable (2) from the top cover. (The power button board cable is
attached to the top cover with double-sided tape.)
44 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts