Antenna Modules; Removing The Antenna Modules - Dell OptiPlex 5490 All-In-One Service Manual

Steps
1. Align the screw hole on the audio board with the screw hole on the display-assembly base.
2. Replace the screw (M3x5) to secure the audio board to the display-assembly base.
3. Connect the audio-board cable to the system board.
Next steps
1. Install the side-I/O board.
2. Install the speakers.
3. Install the rear-I/O bracket.
4. Install the bottom cover.
5. Install the wireless card.
6. Install the system-board
7. Install the back cover.
8. Install the cable cover
9. Install the stand.
10. Follow the procedure in

Antenna modules

Removing the antenna modules

Prerequisites
1. Follow the procedure in
2. Remove the stand.
3. Remove the cable cover
4. Remove the back cover.
5. Remove the system-board
6. Remove the wireless card.
7. Remove the bottom cover.
8. Remove the rear-I/O
9. Remove the speakers.
116 Removing and installing components
shield.
(optional).
After working inside your
Before working inside your
(optional).
shield.
bracket.
computer.
computer.