HP G42-300 Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Maintenan - Page 69

Power button board, Remove the Phillips PM2.5×3.0 screw

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Power button board Description Power button board (with cable) Spare part number 600188-001 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 43). 5. Remove the following components: a. Hard drive (see Hard drive on page 44) b. Optical drive (see Optical drive on page 47) c. Keyboard (see Keyboard on page 53) d. Top cover (see Top cover on page 55) Remove the power button board: 1. Turn the top cover upside down with the rear edge toward you. 2. Remove the Phillips PM2.5×3.0 screw (1) that secures the power button board to the top cover. 3. Remove the power button board (2). Component replacement procedures 59

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Power button board
Description
Spare part number
Power button board
(with cable)
600188-001
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
43
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
44
)
b.
Optical drive (see
Optical drive
on page
47
)
c.
Keyboard (see
Keyboard
on page
53
)
d.
Top cover (see
Top cover
on page
55
)
Remove the power button board:
1.
Turn the top cover upside down with the rear edge toward you.
2.
Remove the Phillips PM2.5×3.0 screw
(1)
that secures the power button board to the top cover.
3.
Remove the power button board
(2)
.
Component replacement procedures
59