Microphone Failure - Acer Aspire 7750Z Service Manual

Microphone Failure

If internal or external Microphones fail, perform the following.
Figure 4-7. Microphone Failure
1.
Check that the microphone is enabled. Navigate to Start
Recording tab.
2. Right click on the Recording tab and select Show Disabled Devices (clear by
default). The microphone appears on the Recording tab.
3. Right click on the microphone and select Enable.
4. Select the microphone then click Properties. Select the Levels tab.
5. Increase the volume to the maximum setting and click OK.
6. Test the microphone hardware:
a. Select the microphone and click Configure.
b. Select Set up microphone.
c. Select the microphone type from the list and click Next.
d. Follow the on-screen prompts to complete the test.
7. If the Issue is still not resolved, refer to
4-12
Start
Check M/B
Mic. cable
Check MIC
wire of LCD
module
Swap M/B
Online Support
0
OK
Re assemble the
NG
MIC cable to M/B
OK
Swap MIC wire of
NG
LCD module
 
Control Panel
Information.
Sound and select the
Troubleshooting