HP 520 HP 520 Notebook PC - Maintenance and Service Guide - Page 72

TouchPad cable

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TouchPad cable Description TouchPad cable Spare part number 438562-001 Before removing the TouchPad cable, 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 31). 5. Remove the following components: a. Hard drive (see Hard drive on page 32) b. Memory/WLAN module compartment cover (see Memory module on page 35) c. Optical drive (see Optical drive on page 39) d. Switch cover (see Switch cover on page 41) e. Keyboard (see Keyboard on page 43) f. Display assembly (see Display assembly on page 45) g. Base enclosure (see Base enclosure on page 50) h. Fan assembly (see Fan assembly on page 53) i. Heat sink (see Heat sink on page 55) j. System board (see System board on page 60) Remove the TouchPad cable: 1. Position the top cover with the front toward you. 64 Chapter 4 Removal and replacement procedures

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TouchPad cable
Description
Spare part number
TouchPad cable
438562-001
Before removing the TouchPad cable, 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
31
).
5
.
Remove the following components:
a
.
Hard drive (see
Hard drive
on page
32
)
b
.
Memory/WLAN module compartment cover (see
Memory module
on page
35
)
c
.
Optical drive (see
Optical drive
on page
39
)
d
.
Switch cover (see
Switch cover
on page
41
)
e
.
Keyboard (see
Keyboard
on page
43
)
f
.
Display assembly (see
Display assembly
on page
45
)
g
.
Base enclosure (see
Base enclosure
on page
50
)
h
.
Fan assembly (see
Fan assembly
on page
53
)
i
.
Heat sink (see
Heat sink
on page
55
)
j
.
System board (see
System board
on page
60
)
Remove the TouchPad cable:
1
.
Position the top cover with the front toward you.
64
Chapter
4
Removal and replacement procedures