Audio Board; Removing The Audio Board - Dell OptiPlex 7490 All-In-One Service Manual

Steps
1. Align the screw holes on the side I/O-board with the screw holes on the display-assembly base.
2. Replace the two screws (M2.5x3.5) to secure the side I/O-board to the display-assembly base.
3. Route the SIO-signal cable, SIO-power cable, and audio-board cable through the routing guides on the display-assembly
base.
4. Connect the SIO-signal cable, SIO-power cable, and audio-board cable to the connectors on the system board.
5. Align the screw holes on the side I/O-board shield with the screw holes on the display-assembly base.
6. Replace the two screws (M3x5) to secure the side I/O-board shield to the display-assembly base.
Next steps
1. Install the speakers.
2. Install the rear-I/O bracket.
3. Install the bottom cover.
4. Install the system-board
5. Install the hard drive.
6. Install the back cover.
7. Install the cable cover
8. Install the stand.
9. Follow the procedure in

Audio board

Removing the audio board

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.
10. Remove the side-I/O
About this task
The following image indicates the location of the audio board and provides a visual representation of the installation procedure.
74 Removing and installing components
shield.
(optional).
After working inside your
Before working inside your
(optional).
shield.
bracket.
board.
computer.
computer.