Dell Latitude 9420 Service Manual page 42

About this task
The following image indicates the location of the WLAN antenna module and provides a visual representation of the installation
procedure.
Steps
1. Align and place the WLAN antenna module in the slot on the system.
2. Replace the two (M1.6x3) screws that secure the WLAN antenna module to the palm-rest assembly.
3. Connect the WLAN antenna module's Proximity sensor cable to the RF board and route the Proximity sensor cable in the
routing guides.
4. Align and place the Proximity sensor bracket on the RF board.
5. Replace the single (M1.6x1.8) screw securing the Proximity sensor bracket to the palm-rest assembly.
Next steps
1. Install the battery.
2. Install the WWAN card.
3. Install the base cover.
4. Install the SIM card tray.
5. Install the SD card.
6. Follow the procedure in
42 Removing and installing components
After working on your computer.