Internal Microphone Failure - Acer Aspire One D255 Series Service Manual

Internal Microphone Failure

If the internal Microphone fails, perform the following actions one at a time to correct the problem. Do not
replace a non-defective FRUs:
Microphone Problems
If internal or external Microphones do no operate correctly, perform the following actions one at a time to
correct the problem.
1. Check that the microphone is enabled. Navigate to Start
Sound and select the Recording tab.
2. Right-click on the Recording tab and select Show Disabled Devices (clear by default).
3. The microphone appears on the Recording tab.
4. Right-click on the microphone and select Enable.
5. Select the microphone then click Properties. Select the Levels tab.
6. Increase the volume to the maximum setting and click OK.
7. 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 onscreen prompts to complete the test.
8. If the Issue is still not resolved, see "Online Support Information" on page 259.
132
Start
Check M/B
Mic cable
OK
Check MIC
wire of LCD
module
Swap M/B
OK
Re-assemble
the MIC cable
NG
to M/B
OK
Swap MIC wire
of LCD module
NG
Control Panel Hardware and Sound
Chapter 4