Jp15 piezo always sending signal

Jp15 piezo always sending signal

Hello forum

Yesterday I went to reharse for the firts time with my jp15 and I notisced something weird.
With the magnets volume to zero and the selector only to magnet, the piezo was still sending signals to the amplifier and I had to turn to zero the piezo volume knob.
Is it normal or is there something like an unwanted contact?
The previous owner changed the neck pickup and extended the split to position 1 and 3 as well. Maybe he messed up something.


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