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47SL90QD-AA (CHASSIS:LB91L) - LG TV Service Manual (repair manual). Page 55

Read LG 47SL90QD-AA (CHASSIS:LB91L) Service Manual online

Making 
Revision
2009. 2 . 1
15/25
LCD TV
Symptom
Analog TV No Audio Problem
Revision 
Analog TV Video OK ?
YES
Check MAIN B’D
R2046 Signal (SIF)
Replace MAIN B’D IC100
YES
MAIN B’D
L1101 Signal (SIF)
Replace MAIN B’D IC1102
NO
NO
YES
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