Gents,
Looks like you are on the right path. What I found is the plug receiver on the PCB-PCB1-OFA had come detached from the three traces on the PCB. After soldering the plug back to the board I could get continuity to two sides of the sensor on the PCB that is triggered by the magnet, but the middle trace I could not. I confirmed from the plug onwards to the connection to the controller board is OK. I removed the plug and noticed that the center trace is broken. After trying to repair it I assumed it would be easier to order a new one. I just check Lionel and from what I can tell this is no longer available. So I ask everyone, where can I get a replacement?
Good news as I tried to correct this, I arranged a static support where I could run the engine while stationary. Can't tell how it will do running slow, but the chuff seems to be triggering correctly now. Also, despite the additional obstacles, I am learning a lot more about the various components of the engine thanks to everyone's help.
Thank you very much to everyone who has taken the time.
Randy
