Panasonic RR-830 Desktop Cassette Transcriber / Recorder "deck rewind fast forward" Questions

...deck. The pedal works - it was tested on other unit. Otherwise, the unit rewinds, plays and fast forwards fine. Note, it also fast forwards okay when play is depressed. It just doesn't rewind with ...

...so minimally. Any idea what's going on? It could be the rewind solenoid is jamed up or there is a switch that comes loose under the tape deck. Either way, it will need to be serviced. ...