HP Compaq NC4400 Maintenance And Service Manual page 104

Removal and Replacement Procedures
5. Turn the computer right-side up with the front toward you.
6. Open the computer as far as possible.
7. Slide the keyboard back 1 until the pointing stick cable is
accessible.
8. Release the zero insertion force (ZIF) connector to which the
pointing stick cable is connected and disconnect the pointing
stick cable 2 from the system board.
Disconnecting the Pointing Stick Cable
5–22 Maintenance and Service Guide