Earphone Loop Back Testing - Acer Z630 Service Manual

Acer

10.16 earphone loop back testing

inserting the earphone into the audio Jack hole, speak to the MIC on the
earphone,you will hear the vocie from the receiver on the earphone.
10.17 Dual mic test
Please select a test Mic,then blowing on selected Mic,success if you hear sound
from speaker,or fail.
SERVICE GUIDE
Page : 56/68
Language :English
Date : 2015-07-06