I didn’t do much to the SMC2 today. I removed the CPA unit, cleaned the top, lightly sanded it, taped it off, and sprayed it with a hammertone silver. These also have a small circuit board in them that gets a little attention. This boards’ sole function is to reject a record if the jukebox had been turned off with a record clamped or playing. One capacitor gets replaced and then solder joints are inspected. I’ll usually find a few that need to be reflowed.
Tracy L has said his R mech was moving jerkily and the needle was landing way late or into the song instead of the run-in space. The motor did have a pretty bad vibration. The motor couple was marginal as well. I called him explaining what I had found and got the OK to proceed. I replaced the old motor with a good used late model motor and then installed a new motor couple.
New G…..it is time. Got the loud ass hum when in Play. I disconnected the speaker plug and using a couple of test leads I connected a speaker to just the ground and signal out of the amp. No hum!!!! This told me the hum was originating somewhere in the high voltage field coil circuit. I also pulled the big speaker to replace the crossover capacitor. When I pulled it several pieces of the speaker ring stayed behind. I gently removed them to reglue. The gigantic old capacitor, 4uf, got replaced with two 2.2uf in series to meet the value. I broke out all the small clamps I own, glued and set the speaker ring pieces and laid it all aside.
I took the mirrors back out of the New G, pulled the mech, and slid the R mech into place. I want to run it to get an idea of what else it might need. I almost immediately saw why the tonearm was landing so far into the record. The trip wire was pushing back against its reset bracket forcing the tonearm forward as it moved toward the record. I wanted to wait until Tracy was here to go through these adjustments with him hoping to help him learn a little about these jukeboxes he collects.
My Seeburg Life 