DZ125IN won't program...

Ski Aug 23, 2014

  1. Ski

    Ski TrainBoard Member

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    This is beyond frustrating. I have a Digitrax Zephyr (not an XTRA) and 5 Fox Valley Gevos (n scale of course) that I installed Digitrax DZ125INs in. Out of the 5, only 1 will program a new address or read back anything. All of the others give me the "d nd" code when I try to do anything with them. But they do run on address 03. Any ideas? By the way, I have a sixth FVM gevo and went with a TCS decoder...worked like a charm.

    Thanks in advance for any thoughts anyone has.
     
    Last edited by a moderator: Aug 24, 2014
  2. retsignalmtr

    retsignalmtr TrainBoard Member

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    Have you tried using all the programming modes? Pg, Ph, Pd and Po?
     
  3. lexon

    lexon TrainBoard Member

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    Blast mode

    Are you using the blast mode? I have read discussions about needing that method for some decoders.


    Rich
     
  4. Ski

    Ski TrainBoard Member

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    Thanks everyone. Not sure what is going on...I have only tried paged mode. I took two decoders out of two problem children and put them in the one loco that was good. I got one decoder to program in that loco, but the other refused to change anything. I then tried to program the remaining Gevos again, leaving the decoders in them...and they all programmed this time. What?!?!?!? But when I check the addresses on readback, I get all sorts of numbers back, but not the actual loco number. So I am now down to one decoder that will not program at all...and maybe two bad FVM loco circuit boards???? I am confusing myself...

    I have not tried blast mode...does the Zephyr do that?
     
  5. retsignalmtr

    retsignalmtr TrainBoard Member

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    I've heard of the blast mode but I don't think the Zephyr can do that. Try the other three programming modes. I sometimes have to try all four before a decoder will accept the new address.
     
  6. Ski

    Ski TrainBoard Member

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    The other modes don't work either. Emailed Matt at FVM and Digitrax. Both responded very quickly. Matt is sending me new boards to try...now that is great customer service!
     

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