Trouble Shooting - LG 22LG3000 Service Manual

1. No Power (LED Blank )
CheckQ903, IC903,ZD920 IC902
and relative circuit
Copyright©2008 LG Electronics.Inc.All right reserved
Only for training and service purposes

TROUBLE SHOOTING

No Power
Check power
cord and board
interface
OK
Check F901, BD901
OK
Check Q901
OK
Check IC901
OK
Check T901
OK
NG
Plug in power cord and
NG
Replace F901 or BD901
NG
Replace Q901
NG
Replace IC901
NG
Replace T901
NG
Replace
IC902
- 23 -
interface
Q903, ZD920, IC903
LGE Internal Use Only