HP Pavilion dv4-3000 HP Pavilion dv4 Entertainment PC - Maintenance and Servic - Page 58

TouchPad button board, Position the top cover upside down, with the front toward you.

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TouchPad button board Description TouchPad button board NOTE: The TouchPad button board cable is included in the Cable Kit, spare part number 640363-001. Spare part number 640337-001 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 33). 5. Remove the following components: a. Hard drive (see Hard drive on page 36) b. Optical drive (see Optical drive on page 39) c. Keyboard (see Keyboard on page 41) d. Top cover (see Top cover on page 46) Remove the TouchPad button board: 1. Position the top cover upside down, with the front toward you. 2. Release the ZIF connector (1) to which the TouchPad button board cable is connected and then disconnect the cable (2) from the TouchPad. 3. Remove the Phillips 2.0x2.0 screw (3) which secures the TouchPad button board to the top cover. 50 Chapter 4 Removal and replacement procedures

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TouchPad button board
Description
Spare part number
TouchPad button board
NOTE:
The TouchPad button board cable is included in the Cable Kit, spare part number
640363-001.
640337-001
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
33
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
36
)
b.
Optical drive (see
Optical drive
on page
39
)
c.
Keyboard (see
Keyboard
on page
41
)
d.
Top cover (see
Top cover
on page
46
)
Remove the TouchPad button board:
1.
Position the top cover upside down, with the front toward you.
2.
Release the ZIF connector
(1)
to which the TouchPad button board cable is connected and then
disconnect the cable
(2)
from the TouchPad.
3.
Remove the Phillips 2.0x2.0 screw
(3)
which secures the TouchPad button board to the top
cover.
50
Chapter 4
Removal and replacement procedures