Some thoughts...
Having the sensor "too" close to the inner platter rim/tape will cause the motor to run backwards (at least this was the case with a JVC deck I got running a long time ago).
Do not touch or attempt to clean the inner plater rim (treat it gently).
If it's a bad motor run/start cap the Denon's I've seen had two identical caps on the board (which can be a bit confusing) with one being the "run/start" and the other being "speed control".
Just a fiddler and not a tech.
DeKay
Having the sensor "too" close to the inner platter rim/tape will cause the motor to run backwards (at least this was the case with a JVC deck I got running a long time ago).
Do not touch or attempt to clean the inner plater rim (treat it gently).
If it's a bad motor run/start cap the Denon's I've seen had two identical caps on the board (which can be a bit confusing) with one being the "run/start" and the other being "speed control".
Just a fiddler and not a tech.
DeKay