HP Compaq NC6140 Maintenance And Service Manual page 113

8. Release the zero insertion force (ZIF) connector 1 to which
the keyboard cable is attached and disconnect the keyboard
cable 2.
9. Release the ZIF connector 3 to which the pointing stick
cable is attached and disconnect the pointing stick cable 4.
Disconnecting the Keyboard and Pointing Stick Cables
10. Remove the keyboard.
Reverse the above procedure to install the keyboard.
Maintenance and Service Guide
Removal and Replacement Procedures
6–23