I recently got an old CP-16A and am trying to restore it to working condition however it has one problem. When I plug it in to ac and run it nothing happens. If I leave the run button on for several minutes it will eventually start to run but very slowly. After a few more minutes it will start to run faster but never reaches sync speed (the red light is always on). If at any point I turn the run switch off the process starts back from the beginning. The power supply is good, it's giving off 20 vdc at 3 amps and I tested the camera with another power supply alligator clipped to the battery terminals and got the same results. Any help would be greatly appreciated. I'm trying to repair this myself without having to send it in. I'll link a video where you can see the speed ramping up and down on it's own. At the point I'd taken the video the camera had been powered on about 10 minutes.