Dell Latitude 7220 Service Manual page 34

Steps
1. Slide the wireless card at an angle into the wireless-card slot.
2. Connect the antenna cables to the WLAN card. The following table provides the antenna-cable color scheme for the WLAN card that
is supported by your tablet.
Table 2. Connectors on the wireless card
Antenna
Main (white triangle)
Auxiliary (black triangle)
3. Place the WLAN card bracket on the WLAN card.
4. Replace the screw (M2x3) to secure the WLAN card bracket to the WLAN card.
Next steps
1. Install the display assembly.
2. Install the batteries.
3. Follow the procedure in
34 Removing and installing components
after working inside your tablet.
Cable Color
White
Black