4-6
ONE POINT REPAIR GUIDE
2. POWER ON ERROR (12 V, 5 VA)
Fundamental power check points
2-1. 12 V
1) Check 12 V at WFC602.
2) If 12 V is not checked at the point, then find PVDD at pin1 of WIC607.
3) 1), 2) is NG Replace WIC607.
If you can’t check PVDD voltage, then you replace woofer SMPS board.
2-2. 5 VA
1) Check 5 VA at WFC601.
2) If 5 VA is not checked at the point, then find PVDD at pin1 of WIC606.
3) 1), 2) is NG Replace WIC606.
If you can’t check PVDD voltage, then you replace woofer SMPS board.
< Woofer AMP board top view >
< Woofer AMP board top view >
12 V
at WFC602
PVDD
at pin1 of WIC607
PVDD
at pin1 of WIC606
5 VA
at WFC601
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