Power button board
Description Spare part number
Power button board (includes cable) L09552-001
Before removing the power button board, follow these steps:
1. Turn o the computer. If you are unsure whether the computer is o 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 following components:
a. Bottom cover (see Bottom cover on page 33)
b. Battery (see Battery on page 34)
c. Hard drive (see Hard drive on page 37)
d. Solid-state drive (see Solid-state drive on page 39)
e. WWAN module (see WWAN module on page 40)
f. Keyboard (see Keyboard on page 43)
g. Internal frame (see Internal frame on page 47)
Remove the power button board:
1. Position the computer upright and open as far as possible.
2. Disconnect the power button board cable from the system board (1).
Component replacement procedures 63
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