Compaq Presario CQ57-300 Presario CQ57 Notebook PC Maintenance and Service Gui - Page 65

TouchPad button board, and the TouchPad button board cable

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TouchPad button board Description TouchPad button board (includes cable) Spare part number 646130-001 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 39), and then remove the following components: ● Optical drive (see Optical drive (select models only) on page 40) ● Keyboard (see Keyboard on page 49) ● Top cover (see Top cover on page 52) Remove the TouchPad button board and cable: 1. Turn the top cover upside down, with the top toward you. 2. Release the TouchPad board cable (1) and the TouchPad button board cable (2) from the top cover. (The TouchPad board cable and the TouchPad button board cable are attached to the top cover with double-sided tape.) 3. Remove the four Phillips PM2.0×4.0 screws (3) that secure the TouchPad button board to the top cover. Component replacement procedures 57

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TouchPad button board
Description
Spare part number
TouchPad button board (includes cable)
646130-001
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
39
), and then remove the following components:
●
Optical drive (see
Optical drive (select models only)
on page
40
)
●
Keyboard (see
Keyboard
on page
49
)
●
Top cover (see
Top cover
on page
52
)
Remove the TouchPad button board and cable:
1.
Turn the top cover upside down, with the top toward you.
2.
Release the TouchPad board cable
(1)
and the TouchPad button board cable
(2)
from the
top cover. (The TouchPad board cable and the TouchPad button board cable are attached to the
top cover with double-sided tape.)
3.
Remove the four Phillips PM2.0×4.0 screws
(3)
that secure the TouchPad button board to the
top cover.
Component replacement procedures
57