
Most rotary switch and potentiometers would probably be sealed or locked with metal tabs bent over. You risk the potential of work hardening the tabs and having them break off. Replacement would be best. At the very least, if Roland no longer stocks them, you might be able to find out from Roland who their OEM supplier was/is for the item and buy direct from them. The OEM supplier might even have an updated replacement for it (This might affect he sound/tone of the circuit though so be careful).Goldenvoice388 said:Can such things be cleaned?