HP Compaq nc8430 Maintenance And Service Manual page 136

Removal and Replacement Procedures
2. Make note of which antenna cable is attached to which
antenna clip on the Mini Card module before disconnecting
the cables, then disconnect the wireless antenna cables 1
from the Mini Card module.
3. Remove the wireless antenna cables from the top cover clips
(2 and 3) through which they are routed.
4. Disconnect the display cable 4 from the system board.
Disconnecting the Wireless Antenna and Display Cables
5–46 Maintenance and Service Guide