Lionel TMCC Smoke Unit Troubleshoot- Voltage Regulator ?

SteimsOGR Forum Member SUPPORTING MEMBER

Just picked up a "new" Lionel UP GP-30 6-28860. It is not smoking, no fan or heat.

I applied 18 VAC directly to the smoke unit J1 connector and the fan spins and the heating element gets hot. I am not getting AC voltage to the J1 connector. I have reset the locomotive. I am seeing about 1 VAC as input to the smoke unit.

I suspect it is a problem with the AC Regulator. How can I confirm whether it is bad or it's not getting good serial information from the motherboard to turn on?

11/18/175:55 PM

Original Post

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