Read LG 47SL80YD-DA (CHASSIS:LT91T) Service Manual online
Check Signal format
Is it supported?
Check the Component Cable
YES
MAIN B’D JK402 Check
Replace MAIN B’D JK402
YES
NO
Check MAIN B’D R422
Video Signal ?
NO
YES
Check MAIN B’D C214, C209 (Y)
C215 (Pb)
C216 (Pr)
Video Signal ?
Replace
MAIN B’D C214 or C209 or C215 or C216
NO
Replace MAIN B’D IC 100
YES
Making
전자 - 6-2
Revision
2009. 2 . 1
8/25
LCD TV
Symptom
Component2 No Video/
No Color Problem
No Color Problem
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