Lionel 18005 constant volt light board

NYCBuffaloOGR Forum Member

i have my 1-700e running but cant get the 8504-080 constant light board to work in the loco. Works fine on bench with led light but not in the loco using the frame as common. I have the yellow wire going to center rail pickup and the red to a resistor and the led. I bypassed the board for now and just added a diode to the resistor and connected that to the center rail still using the frame as ground and that works so my ground path is ok. Anyone know the wiring secret of the constant voltage board??!

4/29/183:16 PM

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