#1
I'm hoping someone might be able to give me some guidance. I recently picked up a 2010 PRS C22 (lefty) and noticed that (1) the push-pull hardly makes any difference and (2) the tone control doesn't taper, instead quickly phasing in at about 3 on the dial.

I'm not sure if anyone ever played around with the wiring before I bought it, but it doesn't seem to track the schematic PRS has on their website. For example, the cap is a .033uF instead of the stated .022uF, and connects to the live pole of the volume control, rather than the center. The pot reads "A (|) 15A500K 10 11", so I don't think there's an issue with the type of pot.

Any suggestions or tips would be great as the push-pull seems almost useless and the tone control behaves like an on-off switch. I've included a couple pics for reference.



Last edited by mishary at Jul 29, 2016,
#2
Well, if a 6 year old guitar has parts in it which aren't stock, and the controls don't seem to function properly, there's a strong possibility somebody who didn't know what they were doing tried to "hop it up", and rather wound up f***ing it up...

If you have a small digital multi-meter, you could guesstimate the pot's tapers.

If you can, wire the guitar back to stock, as shown at the PRS website.

Have the PuPs been changed? If so, the problems you're having might have been in conjunction with that.

I haven't been under the hood of an electric in pushing 40 years. I don't know what help I can be beyond that which I've already said.

There are guys here that do this stuff frequently, so I'd hang around and wait for real help.

I play lefty too, and not too long ago PRS announced they were no longer going to support left hand players. I'm not certain if that was across acoustic / electric lines, or just the acoustic only. That's worth some fact checking.

In any case, if you got a good price on the guitar, the wiring mess could be responsible. Although, you may indeed have to take that, "gift horse" to the dentist.