Rich,
I don't want to sound like a smart donkey,but you went thru this before, you will get the bulb from the decoder to light,because of the traces being connected,on the decoder. you have to test from the truck itself,for power pick-up.
Cheers,
Frank
I have an NCE DA-SR decoder on an Athearn Genesis F7B loco.
If I lift the rear truck off the rails, the loco loses power and the motor linkage stops spinning.
With the rear truck off the rails, I put a pair of wires connected to a 12 volt incandescent bulb onto the terminals of the decoder where the pick up wires from the front truck connect. The bulb lights. So this would seem to indicate that the pick up wires are carrying power from the rails to the decoder.
So I am confused.
Is it a decoder problem where power is not transmitted from the terminals to the motor?
Rich
Alton Junction