Read LG 37LH200H (CHASSIS:LD91Y) Service Manual online
Check the CVBS Cable
YES
Check MAIN B’D
C2013, C2014
MAIN B’D
C2013 (Right Sound)
C2014 (Left Sound)
signal ?
YES
NO
Replace MAIN B’D IC 100
Component Video OK ?
YES
Check MAIN B’D JK400
Replace MAIN B’D JK400
NO
YES
Making
Revision
2009. 2 . 1
LCD TV
Symptom
Component No Audio Problem
22~42LH200H
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