As an Authorized McIntosh repair center, we have had more than 2 Optical Encoders fail (one in an MX-132 and another in a C2200 I seem to recall) and they reflect your exact symptoms when failing. Take her in for service and McIntosh will take care of you.
Mcintosh Volume control acting erratic
Does anyone know what could be causing the volume control on a Mcintosh cp2200 to randomly change and sometimes freeze? I've tried covering the sensor for the remote thinking that their could be an interference, but it still does it. Just curious if anyone has experienced this with digital volume controls before.