HP ENVY dv4-5b00 HP Envy dv4 Maintenance and Service Guide - Page 58

TouchPad button board, cable is attached to the top cover by double-sided tape.

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TouchPad button board Description TouchPad button board (includes cable) Spare part number 682488-001 Before removing the TouchPad button board, follow these steps: 1. Shut down the computer. 2. Disconnect the power from the computer by unplugging the power cord from the computer. 3. Disconnect all external devices from the computer. 4. Remove the battery (see Battery on page 30), and then remove the following components: a. Service door (see Service door on page 32) b. Hard drive (see Hard drive on page 33) c. Optical drive (see Optical drive on page 36) d. Keyboard (see Keyboard on page 42) e. Top cover (see Top cover on page 45) Remove the TouchPad button board: 1. Turn the top cover upside down, with the front toward you. 2. Release the TouchPad button board cable (1) from the top cover. (The TouchPad button board cable is attached to the top cover by double-sided tape.) 3. Release the TouchPad ZIF connector to which the TouchPad button board cable is connected, and then disconnect the TouchPad button board cable (2) from the TouchPad board. 4. Remove the three Phillips M2.0×3.5 screws (3) that secure the TouchPad button board bracket to the top cover. 5. Remove the TouchPad button board (4). 50 Chapter 4 Removal and replacement procedures

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TouchPad button board
Description
Spare part number
TouchPad button board (includes cable)
682488-001
Before removing the TouchPad button board, follow these steps:
1.
Shut down the computer.
2.
Disconnect the power from the computer by unplugging the power cord from the computer.
3.
Disconnect all external devices from the computer.
4.
Remove the battery (see
Battery
on page
30
), and then remove the following components:
a.
Service door (see
Service door
on page
32
)
b.
Hard drive (see
Hard drive
on page
33
)
c.
Optical drive (see
Optical drive
on page
36
)
d.
Keyboard (see
Keyboard
on page
42
)
e.
Top cover (see
Top cover
on page
45
)
Remove the TouchPad button board:
1.
Turn the top cover upside down, with the front toward you.
2.
Release the TouchPad button board cable
(1)
from the top cover. (The TouchPad button board
cable is attached to the top cover by double-sided tape.)
3.
Release the TouchPad ZIF connector to which the TouchPad button board cable is connected,
and then disconnect the TouchPad button board cable
(2)
from the TouchPad board.
4.
Remove the three Phillips M2.0×3.5 screws
(3)
that secure the TouchPad button board bracket
to the top cover.
5.
Remove the TouchPad button board
(4)
.
50
Chapter 4
Removal and replacement procedures