3. Remove the fingerprint reader board and cable assembly from the top cover (3).
Reverse this procedure to install the fingerprint reader assembly.
Power button board
Description Spare part number
Power button board assembly 767442-001
Before removing the power 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 42).
5. Remove the following components:
a. Service doors (see
Service door on page 43)
b. Keyboard (see
Keyboard on page 55)
c. Hard drive (
Hard drive on page 45)
Component replacement procedures 65
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