I need to find some info on the phonograph in the RCA model 65U I'm restoring. Radio and cabinet are done but having problems with the player. It's marked as 960260-2-k. Tone arm seems to be sitting too high at rest and when it swings over to record starting point it doesn't drop all the way to the record. It does kick back when finished. Schematic or service info would be helpful. Can't find it in Rider's manual.