Acer Aspire ONE 722, Service Manual, Page: 136 / 222

4-12 Troubleshooting
Microphone Failure
0
If internal or external Microphones fail, perform the following:
Figure 4-7. Microphone Failure
1. Check that the microphone is enabled. Navigate to
Start

Control Panel

Hardware
and Sound

Sound
and select the
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:

Select the microphone and click
Configure
.

Select
Set up microphone
.

Select the microphone type from the list and click
Next
.

Follow the on-screen prompts to complete the test.
7. If the Issue is still not resolved, refer to
Online Support Information
.
Start
OK
NG
OK
OK
NG
Swap M/B
Check M/B
Mic cable
Check MIC
wire of LCD
module
Re-assemble the
MIC cable to M/B
Swap MIC wire of
LCD module