Installing The Wlan Antenna Module - Dell Latitude 9420 Service Manual

5. Remove the WWAN card.
6. Remove the battery.
About this task
The following images indicate the location of the WLAN antenna module and provide a visual representation of the removal
procedure.
Steps
1. Remove the single (M1.6x1.8) screw securing the Proximity sensor bracket to the plam-rest assembly and lift the Proximity
sensor bracket off the system.
2. Peel off the piece of tape securing the WLAN antenna module's proximity sensor cable in place.
3. Disconnect the WLAN antenna module's Proximity sensor cable from the RF board and unroute the Proximity sensor cable
from the routing guides.
4. Remove the two (M1.6x3) screws that WLAN antenna module to the palm-rest assembly, and lift the WLAN antenna module
off the system.

Installing the WLAN antenna module

Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
Removing and installing components 41