jrg320,
I’m sorry i missed your last posts…i just now found them….sorry for the delay.
I have found that the pwm can leak into the ground path via extra capacitance anywhere from that part of the circuit…meaning that you don’t have to necessarily have a physical short. For example when i press and hold the solder joints for the tap tempo led i can hear some of the pwm leak into the audio path via the capacitance of my finger. So with this in mind, make sure that the solder pads on this pwm rail don’t have excess solder on them and that the components are standing upright and not bent over close to other components or solder joints.
I’d be willing to look at for you if you can get it to me and back from me, somehow. If you live in the Chicago area you can come by the lab sometime, or you can mail it to me if you’d like. Depending on which model you have, I can possibly do some mods for you. I just want you to be able to use your Quaverato as a tremolo pedal.
Let me know.
-Brach