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Copyright©2008 LG Electronics.Inc.All right reserved - 23 - LGE Internal Use Only
Only for training and service purposes
TROUBLE SHOOTING
1. No Power (LED Blank )
No Power
Check power
cord and board
interface
NG
Plug in power cord and
interface
OK
Check F901, BD901
NG
Replace F901 or BD901
OK
Check Q901
NG
Replace Q901
OK
Check IC901
NG
Replace IC901
OK
Check T931
Replace T931
NG
OK
Replace IC903 IC902
CheckQ934, IC932, IC933 and
relative circuit
NG