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4.
Remove the power button board (3) and cable.
Reverse this procedure to install the power button board.
Fingerprint reader board
Description Spare part number
Fingerprint reader board (includes cable and bracket) 681975-001
Before removing the fingerprint reader 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 47), and then remove the following components:
a. Hard drive (see
Hard drive on page 48)
b. Optical drive (see
Optical drive on page 53)
c. Keyboard (see
Keyboard on page 59)
d. Top cover (see
Top cover on page 63)
Component replacement procedures
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