HP Compaq NC6140 Maintenance And Service Manual page 122

Removal and Replacement Procedures
5. Turn the computer display-side up with front toward you.
6. Open the computer as far as possible.
7. Disconnect the LED board cable 1 from the system board.
8. Insert a flat-bladed screwdriver into the four notches 2 on the
front edge of the switch cover 3 and lift up until the cover
disengages from the computer.
9. Remove the switch cover.
Removing the Switch Cover
Reverse the above procedure to install the switch cover.
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