WIRING DIAGRAM FOR BACHMANN NIAGARA

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Bachmann harness diagram | Model Railroad Hobbyist magazine
I removed all of the Bachmann electronics, and hard-wired the decoders to the correct wires. it is a well known fact that Bachmann does not use NMRA colors for DCC. I cannot agree strongly enough! It is now my policy to completely gut every bit of wire from a Bachmann steam locomotive whenever possible, and rewire it properly myself.
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Bachmann Heisler Tips - girr
The wire colors listed on Bachmann's diagrams appear to match the loco, which is good. I have traced out the main PWB. It contains three 12 volt regulators, the circuitry to drive the firebox flicker and some power control circuits for the cab lights and smoke. All of the wiring is interconnected on this board so that rooting out the harnesses