z
MIC Trouble
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. Trouble Shooting
- 86 -
YES
NO
Voltage across C628
or L602 is about 2.5V?
change the Main Board
Check the signal
level at each side of MIC600.
Is it a few tens mVAC?
START
MICBIAS Voltage of
U102 is about 2.5V?
Replace U102
NO
Replace MIC600
NO
YES
Replace U102
NO
Check the soldering of
C630-C638,L603,L604
END
Re-solder R100 & L100
Summary of Contents for KM710
Page 1: ...Date May 2008 Issue 1 0 Service Manual Model KM710c Service Manual KM710c Internal Use Only ...
Page 173: ...Note ...
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