Internal Speaker Failure - Acer Aspire One 722 Service Manual

Internal Speaker Failure

If Internal Speakers fail, perform the following:
Figure 4-6. Internal Speaker Failure
Sound Problems
Perform the following, one at a time.
1. Boot the computer.
2. Navigate to Start
Manager. Check the Device Manager to determine that:
The device is properly installed

There are no red Xs or yellow exclamation marks

There are no device conflicts

No hardware is listed under Other Devices

3. If updated recently, roll back the audio driver to the previous version.
4. Remove and reinstall the audio driver.
5. Make sure that all volume controls are set mid range:
Click the volume icon on the taskbar

Drag the slider to 50. Confirm that the volume is not muted.

Click Mixer to verify that other audio applications are set to 50 and not muted.

6. Navigate to Start
4-10
Start
OK
Check M/B
SPK cable
OK
Check Logic
lower
OK
Swap M/B
 
Control Panel System and Maintenance
 
Control Panel Hardware and Sound
0
NG
Re-assemble the
SPK cable to M/B
NG
Swap Logic lower

 Sound. Confirm that

System Device
Troubleshooting
0