Read LG 42SL80YD-AA (CHASSIS:LB91T) Service Manual online
Making
Revision
2009. 2 . 1
LCD TV
Symptom
AV1 (CVBS) No Video
Problem
5/25
Check Signal format
Revision
Problem
Check Signal format
Is it supported?
Check the RCA Cable
YES
MAIN B’D JK402 Check
Replace MAIN B’D JK402
YES
NO
Check MAIN B’D R420
Video Signal ?
NO
YES
Check MAIN B’D C217
Video Signal ?
Replace
MAIN B’D C217
NO
YES
Replace MAIN B’D IC 100
S
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