I use my Ampeg SCR-di as a practice tool and mixer anytime I am practicing silently as it has a aux in volume control. As I was practicing the other day , I pulled it off the desk accidentally . It hit the ground sideways, and since there were inputs being used, I believe there was damage to the board that the aux and input are soldered to. Now there is a constant noise when anything is plugged into the AUX inputs (both) . If nothing is plugged into the AUX inputs , it functions as normal. Anyone know where parts are available? I assume I can email Ampeg, but was thinking that there may be a supplier...