One Point Repair Guide; Power Problem (Pvdd) - LG SL4Y Service Manual

1. NO POWER PROBLEM (PVDD)
No power problem occurs when you power on the unit
1-1. Solution
If you check these points and find PVDD voltage is not checked, replace woofer SMPS board.
1-2. Service hint (Any picture / Remark)
PVDD PVDD
pin7 at WIC607 pin7 at WIC607
Nearby WC686 Nearby WC686

ONE POINT REPAIR GUIDE

PVDD PVDD
pin7 at WIC606 pin7 at WIC606
Nearby WC610 Nearby WC610
< Woofer AMP board top view >
at WCA601 at WCA601
< Woofer AMP board bottom view >
PVDD PVDD
pin3, 4, 5, 6 at WCN601 pin3, 4, 5, 6 at WCN601
PVDD PVDD
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4-2
Only for training and service purposes.