JVC Audio Players & Recorders - Page 8 - Recent Questions, Troubleshooting & Support
No Power to Subwoofer (SP-PWC5)
The question is if the primary of the transformer is dead or the secondary? Or if something else has failed on the power board? What you can do is test around the board, using the meter with the earth lead connected to earth and see if you can see if there is any power anywhere on the board. If there is, the transformer must be good. And that either a regulator or other part (semi-conductor) has failed. Also check any big capacitors for trouble.
Fuses only blow one there is a short. Something open circuit would not affect the fuse. But would kill the power.
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