Installing The Wwan Card; Wlan Card; Removing The Wireless Local Area Network - Wlan Card - Dell Precision 7720 Owner's Manual

Installing the WWAN card

NOTE: Depending on the configuration you choose, you may or may not have WWAN card.
1. Slide the WWAN card to the WWAN card slot.
2. Replace the M2.0x3.0 screw to secure the WWAN card to the computer.
3. Route the antenna cables through the routing channels and connect them to the WWAN card.
4. Install the:
a) base cover
b) battery
c) battery cover
5. Follow the procedure in

WLAN card

Removing the Wireless Local Area Network - WLAN card

1. Follow the procedure in
2. Remove the:
a) battery cover
b) battery
c) base cover
3. To remove the WLAN card from the computer:
a) Remove the M2.0x3.0 screw that secures the WLAN card to the computer [1].
b) Remove the shield that secures the antenna cables [2].
c) Disconnect and un-route the antenna cables connected to the WLAN card and remove the WLAN card from the computer [3,4].
After working inside your computer.
Before working inside your computer.
Disassembly and reassembly 21