Read LG 47SL90QD-AA (CHASSIS:LB91L) Service Manual online
Making
Revision
2009. 2 . 1
14/25
LCD TV
Symptom
Digital TV No Audio Problem
Digital TV Video OK ?
Revision
YES
Replace MAIN B’D IC 100
Click on the first or last page to see other 47SL90QD-AA (CHASSIS:LB91L) service manuals if exist.