It's way too high class for me  

I just picked up an RX-7000, the roller and heads are stuck in the on position (no tape inside), and none of the tape buttons work. Suggestions?

Also, service manual anyone?

very nice box indeed change the belts and go from there

Change belts and roll belt until it releases/lowers. 

Thanks guys. Recommendation for sourcing belts? DocP seems highly recommended on this site.