I think I've seen this problem once before but don't know what model seeburg it was. Anyway I have the LPC ready to be picked up and after several hundred test plays, the mech decides to jamb up. The motor will be on and trying to turn but no go. Turn off the motor and it sort of backs up a hair away from the side it was trying to go. For the life of me I just don't see what it is. There is a little play in there and if I toggle the reversing switch back and forth it will scan 4 or 5 spaces then jamb, flip the switch and it goes the other way. I'm pulling my hair out and I don't have much left! It isn't anything mechanical from the mech to the cabinet, when it's stuck all areas of the mech can still be wiggled around. Nothing at all like the cable getting stuck, that's for sure. I'm thinking something with the bell crank for the tone arm, but the tone arm does move left and right.
Once again, I can't find my books from Ron Rich in case he has any tips for that in there.
Tony