Read LG 37LH200H (CHASSIS:LD91Y) Service Manual online
Check Signal format
Is it supported?
Check the Component Cable
YES
MAIN B’D JK400 Check
Replace MAIN B’D JK400
YES
NO
Check MAIN B’D R419
Video Signal ?
NO
YES
Check MAIN B’D C209, C215 (Y)
C216 (Pb)
C214 (Pr)
Video Signal ?
Replace
MAIN B’D C209 or C214 or C215 or C216
NO
Replace MAIN B’D IC 100
YES
Making
Revision
2009. 2 . 1
LCD TV
Symptom
Component No Video/
No Color Problem
No Color Problem
22~42LH200H
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