All thanks, i cleaned it up but now it wont start.... I have a Lionel 6-84109, GP7, Lion Chief with Bluetooth.
When i apply power to the track the number board lights come on, and then i turn on the remote, but nothing happens, no beep beep Nothing. I did try a reset with the remote, but again nothing, and the light on the remote blinks. Next, i switched the engine to transformer, but only number board lights come on, and engine does not run. I suspect i may have shorted the board somehow, as the reason this started, i was replacing the smoke unit. Any ideas for trouble shooting that dont require an electrical degree??? THanks