HP (Hewlett-Packard) LW340UA Laptop User Manual


 
5. Remove the TouchPad button board (4) and cable.
Reverse this procedure to install the TouchPad button board and cable.
TouchPad LED board
Description Spare part number
TouchPad LED board (includes cable) 640292-001
Before removing the TouchPad LED 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 48), and then remove the following components:
Optical drive (see
Optical drive on page 49)
Hard drive (see
Hard drive on page 51)
Keyboard (see
Keyboard on page 56)
Top cover (see
Top cover on page 59)
Remove the TouchPad LED board and cable:
1. Turn the top cover upside down, with the front toward you.
2. Release the ZIF connector (1) to which the TouchPad LED board cable is connected, and then
disconnect the TouchPad LED board cable (2) from the TouchPad button board.
Component replacement procedures 65