Dell OptiPlex 3000 Thin Client Service Manual page 37

Steps
1. Loosen the captive screw that secures the antenna cover to the antenna.
2. Remove the antenna cover from the antenna.
3. Remove the screw (M3x3) that secures the antenna to the chassis.
4. Unroute the antenna-cable from cable clip and the routing guides on the chassis.
5. Lift and pull the antenna along with its cable to remove it from the chassis.
Removing and installing components 37