Converting Bachmann DCC to DC?

Discussion in 'HO Scale Model Trains' started by chessie4155, Nov 20, 2007.

  1. steamhead

    steamhead Active Member

    Yes...the decoder boards are in the tender. They have (mine do...) the rectangular 8-pin plug, so a short harness will do the trick. Just remove the jumper plug and plug the decoder in...It's a snap..!!
  2. wjstix

    wjstix Member

    You can use either a decoder with the 8-pin connector integral to the decoder, or one with a short harness between the decoder and the 8-pin.

    BTW you don't have to match the decoder to the system you use, any decoder will work with any system - I use a Digitrax Zephyr, and have decoders from TCS (the easiest to set the CV's on), Digitrax, Soundtraxx, and I think there's an NCE in there somewhere, along with the QSI sound equipped engines. All work fine.
  3. chessie4155

    chessie4155 Active Member

    Here;s what I removed.
  4. puddlejumper

    puddlejumper Member

    Light boards. Explains why these units were slower when running with your other engines w/o light boards.

  5. chessie4155

    chessie4155 Active Member

    I thought they looked kind of funny to be DCC boards, I didn't see where you could plug anything into the board. oh well, they run a lot better now.
  6. wjstix

    wjstix Member

    Hmmm...the only Bachmann engine I have that came DCC equipped (a steam engine) had a lightboard with a small decoder plugged into it. I'd say what you removed are in fact decoders, a light board wouldn't have that much stuff on it. Hang on to them if you decide to change them back to DCC.
  7. chessie4155

    chessie4155 Active Member

    Ah, Ok, thanks, I will keep them then.
  8. Russ Bellinis

    Russ Bellinis Active Member

    It looks like those are a combination light board and decoder board. I think that black integrated circuit on one side just off center length wise is probably the decoder chip.
  9. puddlejumper

    puddlejumper Member

    Ahh, yes, you're probably right. A directional light board would only have diodes on there, no othe chips.


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