HP COMPAQ NC2400 Maintenance And Service Manual page 127

11. If it is necessary to replace the LED board cable, release the
ZIF connector 1 to which the LED board cable is attached
and disconnect the LED board cable 2 from the
system board.
12. Remove the LED board cable 3.
✎
The LED board cable is included with the switch cover spare
part kit and is also available in the Cable Kit, spare part number
412753-001.
Removing the LED Board Cable
Reverse the above procedure to install the keyboard.
Maintenance and Service Guide
Removal and Replacement Procedures
5–35