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Thread: Bachman Sante Fe GP40

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    Default Bachman Sante Fe GP40

    Just recently acquired a Bman GP40, came with a train set.

    I took some pictures of the insides.

    Can anyone tell me if this is DCC ready? (plug in decoder)
    If so does anyone know what decoder will work here? I don't need sound.

    It looks like there are holes for a 6 pin decoder at the one end for a plug
    The holes are labelled as per the note.

    It looks like it was manufactured in 2017
    Attached Images Attached Images
    Last edited by lilleyen; 16th Mar 2019 at 02:17 PM. Reason: remove vertical copy pic

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    It's DCC Ready to the extent that those contacts are where you would solder decoder wires. It does not accept a "plug in" decoder.

    -Mark

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    Quote Originally Posted by Spookshow View Post
    It's DCC Ready to the extent that those contacts are where you would solder decoder wires. It does not accept a "plug in" decoder.

    -Mark
    Thanks Mark,

    Would you know if that's all there is to it, or are there other considerations, like insulating the motor etc.?
    I'm not afraid of soldering but I don't relish the idea of disassembling the whole engine if I don't have to.
    Afraid I'll bugger something up.
    Converting to DCC soon and i like this little engine and would like be able to use it on my new system if possible.
    If there was a YouTube video of someone doing this exact thing, then I would be more confident about it.

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    That's all there is to it. Just solder the colored decoder wires to the appropriate contact (orange=M+, gray=M-, etc).

    -Mark

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    Quote Originally Posted by Spookshow View Post
    That's all there is to it. Just solder the colored decoder wires to the appropriate contact (orange=M+, gray=M-, etc).


    -Mark
    What colour wires go to HL and L and BL (R is pretty obvious I think)
    Can't figure out what HL and BL stand for

    BTW, thanks for your help, much appreciated.
    Been perusing the Spookshow recently.
    Very impressive!
    Interesting reading and great pictures.
    Last edited by lilleyen; 17th Mar 2019 at 10:01 AM.

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    Please head over to the NMRA and check the appropriate standard at https://www.nmra.org/sites/default/f...2015.05.22.pdf - the first page has a table of wire color codes. Even though it's just a draft, all the decoders I've seen follow it.

    Heiko

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    Do your research, because this is off the top of my head, but this is what it looks like per my guess.

    M+ and M- are your motor connections, the orange and gray wires (if it runs backwards, switch these two.)

    R and L (right and left rail) are the track connections, red and black wires.

    HL and BL are the headlight and backup light, white and yellow wires, respectively.

    Now, you'll have a blue wire as well, which is the + power connection for the headlights. This can be omitted in some cases, not sure if that's the case here, or if there's a common power pad somewhere.

    Also, it seems to me that something would have to be removed to disconnect the DCC power from the motor, but I'm not familiar with this engine enough to say if that holds here.

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    Quote Originally Posted by Heiko View Post
    Please head over to the NMRA and check the appropriate standard at https://www.nmra.org/sites/default/f...2015.05.22.pdf - the first page has a table of wire color codes. Even though it's just a draft, all the decoders I've seen follow it.

    Heiko
    Thanks Heiko,

    That clears up a lot.

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    Quote Originally Posted by conrailandrew View Post
    Do your research, because this is off the top of my head, but this is what it looks like per my guess.

    M+ and M- are your motor connections, the orange and gray wires (if it runs backwards, switch these two.)

    R and L (right and left rail) are the track connections, red and black wires.

    HL and BL are the headlight and backup light, white and yellow wires, respectively.

    Now, you'll have a blue wire as well, which is the + power connection for the headlights. This can be omitted in some cases, not sure if that's the case here, or if there's a common power pad somewhere.

    Also, it seems to me that something would have to be removed to disconnect the DCC power from the motor, but I'm not familiar with this engine enough to say if that holds here.
    Aha! So R is not red. The plot thickens.
    I wonder if I contacted Bachman if they could tell me if I have to unground the engine?
    Worth a try.
    Thanks for the help
    Last edited by lilleyen; 17th Mar 2019 at 02:26 PM.

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    ah r is red, it is also right rail
    b is black, it is also left rail

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    Quote Originally Posted by victor miranda View Post
    ah r is red, it is also right rail
    b is black, it is also left rail
    but there was no "b"

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    but but but.
    there has to be!
    it is left rail!

    In the steamers b-mann makes there is no red or black wire in the tender because they use
    orange and grey for the motor leads (most times) and the rails are on the PC board without wires leading to it...

    the standard is
    rt rail --> red wire
    lft rail --> black wire

    motor lead that was to rt rail --> orange
    motor lead that was to lft rail --> gray

    the headlamp wires I keep forgetting.
    yellow and white and blue...

    victor

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    Quote Originally Posted by victor miranda View Post
    but but but.
    there has to be!
    it is left rail!

    In the steamers b-mann makes there is no red or black wire in the tender because they use
    orange and grey for the motor leads (most times) and the rails are on the PC board without wires leading to it...

    the standard is
    rt rail --> red wire
    lft rail --> black wire

    motor lead that was to rt rail --> orange
    motor lead that was to lft rail --> gray

    the headlamp wires I keep forgetting.
    yellow and white and blue...

    victor
    Makes sense. Thanks.

    What I meant was on my PC board soldering holes/spots, there wasn't a B listed there.

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    Is there anything in the included documentation that talks about decoder installation? There usually is (although with Bachmann, not always).

    -Mark

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    the 'el' is the B. I am betting it is Left rail...

    think R is Right rail.

    victor

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