Compaq 435 Maintenance and Service Guide - Page 68

Power button board, Top cover see

Page 68 highlights

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 43), and then remove the following components: ● Memory module/wireless module compartment cover (see WLAN module on page 44) ● Hard drive (see Hard drive on page 48) ● Keyboard (see Keyboard on page 53) ● Top cover (see Top cover on page 56) 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. 60 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
43
), and then remove the following components:
Memory module/wireless module compartment cover (see
WLAN module
on page
44
)
Hard drive (see
Hard drive
on page
48
)
Keyboard (see
Keyboard
on page
53
)
Top cover (see
Top cover
on page
56
)
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.
60
Chapter 4
Removal and replacement procedures