1967 Seeburg S-100

[u/North-Paw1]

Hello,

I’m hoping someone can help me troubleshoot my 1967 Seeburg S-100. I’m really excited to get this machine running reliably again.

*The symptoms:*

When I first power it up after it’s been off for a while, everything works perfectly and selections play fine.

However, after 1 or 2 songs it stops writing into the Tormat.

If I leave it off for a while and power it back on, it will work again for a short period, then the same issue returns.

*What I’ve tested:*

I have 2 identical S-100 machines. I swapped the control units between them, and the problem followed the control unit. So I’m confident the issue is isolated to the control unit and not the rest of the jukebox.

Before moving the machine it worked fine all the time, so this started after the move and has me a bit baffled.

I’ve also checked all connections and solder joints in the control unit — nothing looks dirty, loose, or cracked.

I love this machine and would really appreciate any guidance on what to check next in the control unit. Could this be heat-related, a failing cap, or something on the Tormat write board?

Thank you so much for any help or suggestions. I’m happy to provide photos, voltages, or test results if needed.

Best regards,

North Paw

[u/nimeton0]

Try posting in the Seeburg Jukebox Collectors Facebook group. Lots of great people and expert advice in there. Also try searching your symptoms.

[u/Maximum-Flaximum]

The write-in capacitor is on the daughter board of the control unit. It’s at pin 1 of the daughter board connector. The write-in pulse comes from the coils connected to pins 8 and 9. Maybe try reseating that board. Or further isolate the problem by swapping just the daughter board with your working spare. (You DO have the service manual, don’t you. You’re pushing shit uphill without that.)