Read LG 42SL90QD-DA (CHASSIS:LT91L) Service Manual online
Check Signal format
Is it supported?
Check the RCA Cable
YES
MAIN B’D JK402 Check
Replace MAIN B’D JK404
YES
NO
Check MAIN B’D R465
Video Signal ?
NO
YES
Check MAIN B’D C211
Video Signal ?
Replace
MAIN B’D C211
NO
Replace MAIN B’D IC 100
YES
Making
전자 - 6-2
Revision
2009. 2 . 1
LCD TV
Symptom
AV2 (CVBS) No Video
Problem
6/25
Click on the first or last page to see other 42SL90QD-DA (CHASSIS:LT91L) service manuals if exist.