Q: I have a DH163D decoder. How do I program it so the Mars light works?
A: Any function output on Digitrax FX decoders can be set up for any FX effect by programming its associated FX CV to the appropriate FX CV value.
For example, if CV52 (the FX CV for F2), is programmed with a CV value of 034, the violet wire F2 function output will be a Mars light when F2 is turned on for this decoder address and the decoder's direction is forward.