Dell OptiPlex 7770 All-in-One Service Manual

Removing the antennas

1. Follow the procedure in Before working inside your computer.
2. Remove the following components:
   1. Stand
   2. Back cover
   3. System board shield
   4. Base cover
   5. I/O bracket
   6. Speakers
   7. WLAN card
   8. I/O board
   9. PSU
   10. PSU fan
3. To remove the antenna:
   1. Remove the antenna cables from the routing guides on the display assembly base [1].
   2. Remove the two screws (M2x2.5) that secure the antenna modules (2) to the middle frame [2].
   3. Carefully peel the tape that secures the antenna cables (2) to the middle frame [3].
   4. Release the antenna modules (2) from the tabs and lift the antenna modules off the middle frame.