HP 340 G3, Maintenance And Service Manual

Page: 65 / 112

TouchPad button board
Description Spare part number
TouchPad button board (includes bracket) 813517-001
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 26 ).
5. Remove the optical drive (see Optical drive on page 27 ), if installed.
6. Remove the bottom cover (see Bottom cover on page 34 ).
7. Remove the system board (see System board on page 53 ).
To remove the TouchPad button board:
1. Disconnect the cable from the system board (1).
2. Remove the three Phillips PM2.0×3.0 screws (2) that secure the TouchPad button board to the computer.
3. Remove the TouchPad and cable (3).
Reverse this procedure to install the TouchPad button board and cables.
Component replacement procedures 57