Touchpad Board And Touchpad Button Board - HP 550 Maintenance And Service Manual

TouchPad board and TouchPad button board

NOTE: The top cover, spare part number 495399-001, includes the TouchPad board and cable, and
the TouchPad button board and cable.
Before removing the TouchPad board and 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
5. Remove the following components:
a. Hard drive (see
b. Optical drive (see
c. Keyboard (see
d. Switch cover (see
e. Speaker (see
f. Display lid switch module (see
g. Display assembly (see
h. Top cover (see
Remove the TouchPad board and TouchPad button board:
1. Turn the top cover upside down, with the front toward you.
2. Release the ZIF connectors on the TouchPad button board (1) and TouchPad board (2) to which
the TouchPad board cable is connected.
3. Disconnect and remove the TouchPad board cable (3).
Battery on page
Hard drive on page 40)
Optical drive on page
Keyboard on page 50)
Switch cover on page
Speaker on page 53)
Display lid switch module on page
Display assembly on page
Top cover on page 60)
39).
46)
48)
55)
Component replacement procedures
54)
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