Hi:
Are the transistor and capacitor that you speak of inside the motor casing?
One day the deck was turning very slowly. I took the casette mechanism out of the deck. I put the deck into "Play" mode and using my finger gently turned the shaft of the motor to get it spinning. During every revolution I noticed that the fuse was glowing bright and then dim. Eventually the motor stopped turning and the fuse blew out. I suspect that it is the brush inside the motor.
How do you even open the motor up?
Thanks for your help.
Derek