Acer ICONIA TAB A110 Service Manual page 109

18. External Audio Out Test
Press the External Audio out icon to test the external audio out function, the test process is
same as the "Audio Out Test" below, but it needs you plugging one earphone (with Mic
function).
Figure 4-46. Plugging the earphone with MIC function and press OK to start.
Figure 4-47. According to the Audio Out Test below, test the L channel and the
R channel, select which number you have heard.
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