They don't exist
When I first played my Pro IE upon delivery the volume pot was all screwy and the pick tone switch wasn't doing anything. The tone was really distorted and output was weak.
I was frustrated.
But, after a few days of playing it, the bass has healed itself. I think the pots and switches needed manipulation to clean the contact surfaces.
I still need the jack adaptor to get looked as because of noise any time I move. Kulit17 provided a schematic. So the tech can check it out when he tweaks the input adaptor.
