have an Athearn Sd40-2 that I wired for DCC using a Digitrax DH163 decoder and the athearn wiring harness from Digitrax. I have only one problem now.
I also wired in a 12v headlight and used a 22 Ohm resistor.
However when I run the locomotive forward with the light on F8 the locomotive goes at top speed. When I push F8, the locomotive works properly in both directions.
With the light on the brake does not work and the throttle can be set at 0 and the locomotive still goes forward.
I have made sure the white wire from the decoder has the resistor attached to it inline with the lightbulb.
The blue wire is wired directly to the lightbulb.
Any suggestions to fix this problem would be appreciated.
Sincerely
Jaijef
I also wired in a 12v headlight and used a 22 Ohm resistor.
However when I run the locomotive forward with the light on F8 the locomotive goes at top speed. When I push F8, the locomotive works properly in both directions.
With the light on the brake does not work and the throttle can be set at 0 and the locomotive still goes forward.
I have made sure the white wire from the decoder has the resistor attached to it inline with the lightbulb.
The blue wire is wired directly to the lightbulb.
Any suggestions to fix this problem would be appreciated.
Sincerely
Jaijef