[redk9258]

You should not have let anything move when you had it apart (obviously)! This belt is a bitch to change! It probably would have been a good idea to clean the mode switch since you were so deep in. Hopefully these pictures help. Notice how the holes have to line up. When you put the control cam back on there is a projection that goes into the groove. Also note that One screw is shorter than the 2 others. If this is out of place, the mechanism will jam. While you are in this machine, check the power supply caps. I will almost guarantee capacitor C17 - 3300uF @ 16V will be bad. This will cause any tape to play in EP instead of the correct speed. Check ESR on the rest too, if you can. It might be best just to replace all.