HP Presario CQ45-300 Compaq Presario CQ45 Notebook PC - Maintenance and Servic - Page 81

TouchPad button board, Display assembly see

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TouchPad button board Description TouchPad bracket TouchPad button board Spare part number 494962-001 494965-001 Before removing the TouchPad 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 46) b. Optical drive (see Optical drive on page 44) c. Keyboard (see Keyboard on page 56) d. Switch cover (see Switch cover on page 58) e. Speaker assembly (see Speaker assembly on page 60) f. Display assembly (see Display assembly on page 62) g. Top cover (see Top cover on page 69) Remove the TouchPad button board: 1. Turn the top cover upside down with the front toward you. 2. Remove the four Phillips PM2.5×3.0 screws (1) that secure the TouchPad assembly to the top cover. 3. Remove the TouchPad bracket (2) from the top cover. Component replacement procedures 73

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TouchPad button board
Description
Spare part number
TouchPad bracket
494962-001
TouchPad button board
494965-001
Before removing the TouchPad 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
46
)
b.
Optical drive (see
Optical drive
on page
44
)
c.
Keyboard (see
Keyboard
on page
56
)
d.
Switch cover (see
Switch cover
on page
58
)
e.
Speaker assembly (see
Speaker assembly
on page
60
)
f.
Display assembly (see
Display assembly
on page
62
)
g.
Top cover (see
Top cover
on page
69
)
Remove the TouchPad button board:
1.
Turn the top cover upside down with the front toward you.
2.
Remove the four Phillips PM2.5×3.0 screws
(1)
that secure the TouchPad assembly to the top
cover.
3.
Remove the TouchPad bracket
(2)
from the top cover.
Component replacement procedures
73