HP nc4000 - Notebook PC Maintenance And Service Manual page 112

6. Release the ZIF connector 1 to which the TouchPad cable is
attached and disconnect the cable 1 from the TouchPad
board.
7. Lift the TouchPad straight up and remove it 3.
Removing the TouchPad
Reverse the above procedure to install the TouchPad.
Maintenance and Service Guide
Removal and Replacement Procedures
5–39