I recently installed a sound board on this engine and it hasn't quite worked right since. The engine won't change direction on command. The only time it will is when it's been turned off for at least 10 seconds, and then I have to turn it off again and wait another 10 seconds for the electronic e-unit to switch.
The sound works fine, but the bell and horn were reversed, which prompted me to get out my multimeter to check the circuits and where the wires run. When I started doing this I realized that the wires from the track pick-up appear to be reversed. The black wires go to the center rail and the red wires go to the outer rails. Is this correct?
Other than RVs, I have always known red to be power and black ground. Is AC power on trains different ?
Thanks for the help!
Tom