LG SPJ4B-W Service Manual

4-5
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Only for training and service purposes.
WIC703
WIC703
ONE POINT REPAIR GUIDE
POWER ON ERROR
Fundamental power check points.
1-3. 3.3 VA
1) Check 3.3 VA at pin1 of WIC703.
2) Check 3.3V_PWM at pin6 of WIC703.
3) 1), 2) is NG  Replace WIC703.
If you can’t check PVDD voltage, then replace the PCB board.
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LG SPJ4B-W Specifications

General

Brand	LG
Model	SPJ4B-W
Category	Speaker System
Language	English