Well, this unit was not a very good design.
As long as the unit is turned on the tape deck motor will stay running. The only time the motor will stop is if you turn the unit off or if you push pause.
I ended up replacing the motor (it was going bad and stopped turning). So the motor is bad you will have to replace the motor and the resistor (my replacement resistor did not burn-up).
I also set it up so that I can turn the motor off if I am not using the tape deck and just playing CD's.
Just remember if you don't know what you are doing - Attempting repairs can be dangerous.
Jeff G.
November 2005