Internal & External Speaker Failure - Acer Aspire V3-731 Service Manual

Internal & External Speaker Failure
If internal Speakers fail, perform the following, one at a time. Do not replace a non-defective
FRU:
S TA R T
C heck M B
S P K cable
C heck S P K
m odule
S w ap M B
Figure 4-6. Internal Speaker Failure
Sound Problems
Perform the following, one at a time.
1. Boot the computer.
2. Navigate to Start
Check the Device Manager to determine that:
The device is properly installed

There are no red X 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 task bar

Drag the slider to 50. Confirm that the volume is not muted.

4-10
R eassem ble the
N G
S P K cable to M B
S w ap R eassem ble
N G
The S P K m odule
 
Control Panel
0
S TA R T
C heck I/O B oard
C onnection
C heck I/O
B oard O K?
S w ap M B

System and Security
R eassem ble I/O
N G
B oard FP C
N G S w ap I/O B oard

System Device Manager.
Troubleshooting
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