The boy and I set up the holiday train. After some futzing around, I got my old man's 1951 F3 running and debugged the various issues. We popped the modern loco on the rails...ran it for a spell, admired the details and such and turned off the set to do something else. Later in the day, I fired it back up and there is no sound from the engine. Not even the beeping when the remote hasn't paired yet.
I did the usual of checking connections, volume, etc but nada. Everything else works, including the smoke generator and couplers.
We are running a Z-1000 transformer with TVS installed between the unit and track connection.