Hi,
I’ve just restored a DCC 600: New belts, new pinchrollers and new gear, al from the DCC museum shop. And it works again 
Playing and recording is perfect.
One issue: on some tapes, when rewinding and it hits the end of the tape, you hear a rattle for half a second before it stops. Don’t know if this is the gear or the belt slipping. Any idea what is causing this?