Seeburg M100C - Picking Up - No Motor Power

[dberman51]

Not on the Seeburg but I have definitely had trouble with corrosion on Jones plugs in other equipment. In my experience cleaning the pins is only temporary, and the only cure is replacement. I believe some types are still being manufactured but I haven't looked in a couple of years.

-David

[arcadetechgw]

Thanks to everyone who replied. It seems like the Jones Plug is a low probability.

My next plan is to exercise the selector banks. I know which ones work, so I'll try those first, and then go down the line with that as a baseline. If I find anything sticky, it may be the problem.

[arcadetechgw]

The next trick is if the selecto-o-matic bank is bad, how hard is that to remove?

[arcadetechgw]

Interesting problems: (I made some progress - see below).

I can play some A side songs just fine. But it doesn't reset them, so it plays them again and again.

I think this is due to either a bad solenoid (or connections to the solenoid)

Now I have the same problem on the B side.

The record not rejecting was fixed by adjusting the wire for the trip switch actuator.

The way the select / played deselect works is:
Drop a quarter.
Select songs. As you select, the selector pulls the tab towards the outside.

Once the song is played, before the carriage moves, the solenoid on the contact block resets the selection.

Do I have this right? I have read the manual from cover to cover. It isn't clear.

[dberman51]

Almost. The cancel solenoid on the contact block is energized when the mech locates the selection and detents to stop scanning and load the selected record. The popularity meter is incremented at the same time.

-David

[arcadetechgw]

Thanks - that helps a lot.  I can have them select a record and have my finger on the solenoid and see if it kicks or not.  

Then it's just tracking down the wiring from there to where it goes, to see where the signal drops out.

[arcadetechgw]

For my next troubleshooting effort, I'm going to use grabber clips and my VOM to see if the cancel solenoid gets voltage when the song is selected. I'll have to backtrack from there to check the wiring to the source.

The wiring diagram isn't very clear - is there a clearer one available somewhere?

[jukeboxmarty]

Do not rule out the cancel plunger physically getting stuck in the coil sleeve.

It's a common issue.

[arcadetechgw]

Thank you. I haven't pulled that yet, so I'll take the action to do that.

These things are fairly complex.  Amazing technology for their time, that's for certain.

[arcadetechgw]

Buehler? Buehler?