Dell Latitude 9420 Service Manual page 35

Steps
1. Peel off the two pieces of tape securing the gray WWAN antenna cable in place at the bottom side of CPU shielding cover
and unroute the wireless antenna cables from the routing guides on the system board and the routing guides along the top
side of the battery.
2. Peel off the piece of tape securing the WLAN antenna cables in place at the top side of the battery.
3. Loosen the single captive screw securing the WLAN bracket to the system board.
4. Lift the WLAN bracket off the system board.
5. Disconnect the antenna cables connected to the WLAN module.
6. Unroute the WLAN antenna cables and blue WWAN antenna cable from the metal clips on the system board and the routing
guides along the sides of the battery.
NOTE: The cables for the WLAN antennas are routed over the plastic bracket at the upper right corner and within the
routing guides along the bottom right side of the battery. You must be careful when unrouting the antenna cables from
their routing guides while they are still attached to the wireless card.
7. Disconnect the speaker cable from the connector on the system board and unroute the speaker cable from the routing
guides along the top side of the battery.
Removing and installing components 35