Dell OptiPlex 7450 All-In-One Owner's Manual

Removing the speaker module

1. Follow the procedure in Before working inside your computer.
2. Remove the:
   1. stand
   2. back cover
   3. cable cover
   4. speaker cover
   5. system board shield
3. To release the speaker module:
   1. Disconnect the speaker cable from the connector on the system board [1].
   2. Unthread the speaker cables from the retention clips [2].
   
4. To remove the speaker module:
   1. Remove the screws that secure the speaker module to the chassis [1].
   2. Lift the speaker module and remove it from the chassis [2].