Compaq Presario CQ42-100 Compaq Presario CQ42 Notebook PC and HP G42 Notebook - Page 66

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 41). 5. Remove the following components: a. Hard drive (see Hard drive on page 42) b. Optical drive (see Optical drive on page 45) c. Keyboard (see Keyboard on page 52) d. Top cover (see Top cover on page 54) 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). 58 Chapter 4 Removal and replacement procedures

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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
41
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
42
)
b.
Optical drive (see
Optical drive
on page
45
)
c.
Keyboard (see
Keyboard
on page
52
)
d.
Top cover (see
Top cover
on page
54
)
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)
.
58
Chapter 4
Removal and replacement procedures