I tested the repaired SMC1 harness in the 2 with the Seeburg MCU first and it worked well picking up the corners. (100/200 179/279 ) The first test I tried was to pick up a 200 selection moving from right to left and it did not. It is supposed to. All other selections worked as well. Put the Gen2 in place and after initializing the mech immediately picked up 100 and then went to rest on the right ! This was the selection in memory it wouldn’t pick up and would just scan the other day. I’m very surprised that the factory reset doesn’t wipe the active selection memory. So, this told me there was an issue with the connectors.
Then the fun started. I made a few more selections. The mech went all the way left and hung up. I turned the box off and on a hunch unplugged the mechanism connectors to the PCC and replugged. Turned the box back on and the mech acted fine. I will have to solder all the pins in the mechanism connector like the few I did the other day. Now I selected the corners again. And back to its old tricks. Picked up 179/279 and then just scanned. Not picking up 100/200 and has them locked in memory and just scanning away. There is something wrong with this Gen2 board. It still won’t do the built in detent timing tests either.
This evening I took apart two black boxes and a gray box that Kevin C sent me for repair. I do an initial inspection looking for physical damage. I’ll reflow any solder cracks and these will all usually have a few and then clean the edge connectors. These weren’t bad looking. I’ll test them in the juke tomorrow. The good old STD4 test mule. I had two of these STD4’s in 2020 and decided to restore one, sell it and keep the other for testing purposes. I finished it though and it was so nice I decided to keep it for myself. The other one went to Miss Pattie in El Paso. It’s actually nicer. These are my favorite 70’s jukeboxes. I’ve done maybe 10 of them?
My Seeburg Life 