HP G72-b49WM HP G72 Notebook PC - Maintenance and Service Guide - Page 71

Power button board, Remove the power button board

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Power button board Description Power button board Spare part number 616495-001 Before removing the power button board: 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 disconnecting the power cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see Battery on page 42). 5. Remove the following components: a. Hard drive (see Hard drive on page 43) b. Optical drive (see Optical drive on page 46) c. Keyboard (see Keyboard on page 54) d. Top cover (see Top cover on page 57) Remove the power button board: 1. Turn the top cover upside down with the rear edge toward you. 2. Remove the Phillips PM2.0×3.0 screw (1) that secures the power button board to the top cover. 3. Lift up and remove the power button board (2). Reverse this procedure to install the power button board. ENWW Component replacement procedures 61

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Power button board
Description
Spare part number
Power button board
616495-001
Before removing the power button board:
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 disconnecting the power cord from the AC
outlet and then disconnecting the AC adapter from the computer.
4.
Remove the battery (see
Battery
on page
42
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
43
)
b.
Optical drive (see
Optical drive
on page
46
)
c.
Keyboard (see
Keyboard
on page
54
)
d.
Top cover (see
Top cover
on page
57
)
Remove the power button board:
1.
Turn the top cover upside down with the rear edge toward you.
2.
Remove the Phillips PM2.0×3.0 screw
(1)
that secures the power button board to the top cover.
3.
Lift up and remove the power button board
(2)
.
Reverse this procedure to install the power button board.
ENWW
Component replacement procedures
61