LG SPH7B-W User Manual

4-3
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 SPH7B-W Specifications

General

Brand	LG
Model	SPH7B-W
Category	Speaker System
Language	English