Acer ICONIA TAB A200 Service Manual page 36

6. Speakers
Loud tone sounds in the left speaker and then switches to the right speaker.
7. Front Microphone
Tap the screen to start the test. When the "Recording" screen appears, speak into the device.
Check if the voice is recorded when the screen switches to the "Playing" screen.
2-7
Figure 2:10. Speakers Test
Figure 2:11. Front Microphone Test
Diagnostic Utilities