Dell 23.8" OptiPlex 7410 All-in-One Desktop Computer (Gray) - Manual (Page 85)

Speakers
Removing the speakers
Prerequisites
1. Follow the procedure in Before working inside your computer .
2. Remove the stand .
3. Remove the back cover .
4. Remove the system-board shield .
5. Remove the I/O cover .
6. Remove the bottom cover .
About this task
The following image(s) indicate the location of the speakers and provides a visual representation of the removal procedure.
Steps
1. Disconnect the speaker cable (INT SPKR) from the audio board.
2. Remove the speaker cable from its routing guides on the display-assembly base.
3. Lift the speakers and its cable off the display-assembly base.
Installing the speakers
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
The following image(s) indicate the location of the speakers and provides a visual representation of the installation procedure.
Removing and installing Field Replaceable Units (FRUs) 85