Compaq CQ50-139WM HP G50 Notebook PC and Compaq Presario CQ50 Notebook PC - Ma - Page 74

TouchPad on/off button board, Top cover see

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TouchPad on/off button board Description TouchPad on/off button board (includes cables) Spare part number 486630-001 Before removing the TouchPad on/off 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 40). 5. Remove the following components: a. Optical drive (see Optical drive on page 41) b. Hard drive (see Hard drive on page 43) c. Keyboard (see Keyboard on page 52) d. Keyboard cover (see Keyboard cover on page 54) e. Display assembly (see Display assembly on page 57) f. Top cover (see Top cover on page 64) Remove the TouchPad on/off button board: 1. Turn the top cover upside down, with the front toward you. 2. Release the ZIF connector on the TouchPad button board to which the TouchPad on/off board cable is attached, and disconnect the TouchPad on/off board cable (1) from the TouchPad button board. 66 Chapter 4 Removal and replacement procedures

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TouchPad on/off button board
Description
Spare part number
TouchPad on/off button board (includes cables)
486630-001
Before removing the TouchPad on/off 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
40
).
5.
Remove the following components:
a.
Optical drive (see
Optical drive
on page
41
)
b.
Hard drive (see
Hard drive
on page
43
)
c.
Keyboard (see
Keyboard
on page
52
)
d.
Keyboard cover (see
Keyboard cover
on page
54
)
e.
Display assembly (see
Display assembly
on page
57
)
f.
Top cover (see
Top cover
on page
64
)
Remove the TouchPad on/off button board:
1.
Turn the top cover upside down, with the front toward you.
2.
Release the ZIF connector on the TouchPad button board to which the TouchPad on/off board
cable is attached, and disconnect the TouchPad on/off board cable
(1)
from the TouchPad button
board.
66
Chapter 4
Removal and replacement procedures