HP Presario CQ43-300 Compaq Presario CQ43 Notebook PC Maintenance and Service - Page 66

Power button board, Top cover see

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Power button board Description Power button board (includes cable) Spare part number 646129-001 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), and then remove the following components: ● Memory module/wireless module compartment cover (see WLAN module on page 42) ● Hard drive (see Hard drive on page 46) ● Keyboard (see Keyboard on page 51) ● Top cover (see Top cover on page 54) Remove the power button board: 1. Turn the top cover upside down, with the top toward you. 2. Remove the two Phillips PM2.0×3.0 screws (1) that secure the power button board to the top cover. 58 Chapter 4 Removal and replacement procedures

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Power button board
Description
Spare part number
Power button board (includes cable)
646129-001
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
), and then remove the following components:
●
Memory module/wireless module compartment cover (see
WLAN module
on page
42
)
●
Hard drive (see
Hard drive
on page
46
)
●
Keyboard (see
Keyboard
on page
51
)
●
Top cover (see
Top cover
on page
54
)
Remove the power button board:
1.
Turn the top cover upside down, with the top toward you.
2.
Remove the two Phillips PM2.0×3.0 screws
(1)
that secure the power button board to the
top cover.
58
Chapter 4
Removal and replacement procedures