HP COMPAQ NC2400 Maintenance And Service Manual page 126

Removal and Replacement Procedures
7. Release the ZIF connector 1 to which the keyboard cable is
attached and disconnect the keyboard cable 2.
8. Release the ZIF connector 3 to which the pointing stick
cable is attached and disconnect the pointing stick cable 4.
9. Remove the keyboard.
Disconnecting the Keyboard and Pointing Stick Cables
10. Remove the keyboard.
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