LG 37LF2500 - Page 63

Check the CVBS Cable
YES
Check MAIN B’D
C2011, C2012
MAIN B’D
C2011 (Right Sound)
C2012 (Left Sound)
signal ?
YES
NO
Replace MAIN B’D IC 100
AV3 Video OK ?
YES
Check MAIN B’D JK402 Replace MAIN B’D JK402
NO
YES
Making
Revision
2009. 2 . 1
23/34
LCD TV
Symptom
AV3 No Audio Problem
26~42LH2000
32~47LH3000/LH4000