Internal Speaker Failure - Acer Aspire One D270 Series 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
Manager
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
Troubleshooting
http://mycomp.su - Maintenance and Service Guide,Service Manual,Motherboard Schematics for Laptop/notebook
Ремонт ноутбуков.Запчасти и комплектующие для ноутбука. Схемы,сервис мануалы,инструкции по разборке ноутбука.
→
Start Control Panel
. Check the Device Manager to determine that:
→
Start Control Panel
0
→
System and Maintenance
→
Hardware and Sound
→ →
System Device
→
Sound
. Confirm that
0
4-11