Trying to test the mech on a see burg LU unit. I know the preamp needs work but wondering if I should be able to check the mech without the preamp working. I have power plugged to amp and the mech cord plugged to amp but nothing seems to be happening. Before I spend a lot of money on the pre amp ,I ...

Just bought a seeburg 200LU3. Needs a lot of work and I don't know much. Please advise where I can get instruction and repair manuals