Acer Iconia Tab A700 Service Manual page 38

6. Speakers
Loud tone sounds in the left speaker and then switches to the right speaker.
7. Microphone
Tap the screen to start the test. When recording appears, speak into the top side of the device.
Check the recorded sound quality when the screen shows replaying.
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Figure 2:10. Speakers Test
Figure 2:11. Front Microphone Test
Diagnostic Utilities