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Thread: Bachman Sante Fe GP40

  1. #41
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    Well, the board is supposed to be a convenient way to wire up a decoder, but you really don't need it at all. If you remove it, you can just solder the red and black wires to the two metal posts that conduct track current from the chassis, the orange and gray wires to the red and blue wires that conduct current to the motor, the white wire to the headlight LED board, the yellow wire to the backup light LED board, and the blue wire to the blue wires going to each LED board.

    -Mark

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    Quote Originally Posted by Spookshow View Post
    Well, the board is supposed to be a convenient way to wire up a decoder, but you really don't need it at all. If you remove it, you can just solder the red and black wires to the two metal posts that conduct track current from the chassis, the orange and gray wires to the red and blue wires that conduct current to the motor, the white wire to the headlight LED board, the yellow wire to the backup light LED board, and the blue wire to the blue wires going to each LED board.

    -Mark
    What about the coil thingy's underneath the board? What is their function?
    Also wondering about resistors for the led's. Aren't there supposed to be some somewhere?
    If you are correct, it would certainly be a lot simpler.
    Attached Images Attached Images

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    I'd think any resistors for the lighting would be right on the LED boards, but that's just a guess. As for the coils? Sorry, an electronics expert I ain't, lol.

    -Mark

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    Quote Originally Posted by lilleyen View Post
    What about the coil thingy's underneath the board? What is their function?
    Inductors -- you won't need them. The motor can generate radio frequency noise that interferes with TVs and radios, so inductors help with suppression. Required for sale in the UK, I believe, where the problem was rampant.

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  6. #45
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    Quote Originally Posted by Spookshow View Post
    I'd think any resistors for the lighting would be right on the LED boards, but that's just a guess. As for the coils? Sorry, an electronics expert I ain't, lol.

    -Mark
    I'll take a closer look

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    Quote Originally Posted by Spookshow View Post
    Well, the board is supposed to be a convenient way to wire up a decoder, but you really don't need it at all. If you remove it, you can just solder the red and black wires to the two metal posts that conduct track current from the chassis, the orange and gray wires to the red and blue wires that conduct current to the motor, the white wire to the headlight LED board, the yellow wire to the backup light LED board, and the blue wire to the blue wires going to each LED board.

    -Mark
    So I could connect the red & black wires to the appropriate posts (solder/wire wrap around screws whatever), unsolder the wires from the pcb, (red motor, dark blue motor, yel, light blue, and white led wires), toss the pcb and connect directly to the same coloured wires on the decoder and connect the orange+ to red+ and grey+ to blue- wires coming from the motor,

    That would leave me with scads of room should this be successful, and does open the possibility of upgrading to a sound system later on if required. (Didn't want to practice with an expensive sound decoder anyway.)
    Without the board it would be a snap, plenty of room for a "stay alive" and the speaker grille is already in the fuel tank.
    I'm getting optimistic again. Pretty soon I'll be an old hand at installing decoders, (at least for this loco anyway).

    (If my eyes hold out that is. I'm slated for a laser iridotomy treatment on the 23 of this month, not sure of the outcome. Something do do with my "angles" and glaucoma prevention.)

    It's amazing what I have learned on this forum and all the help I've had so far.
    Thank you all again.

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  9. #47
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    I sent an email to Bachmann customer service and they're taking the fifth - These are not DCC ready and we do not install any decoders here.

    -Mark

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    Quote Originally Posted by Spookshow View Post
    I sent an email to Bachmann customer service and they're taking the fifth - These are not DCC ready and we do not install any decoders here.

    -Mark
    And you Bachmann will forever be Backmann!

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  13. #49
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    Quote Originally Posted by kingmeow View Post
    And you Bachmann will forever be Backmann!
    Well, in their defense they never did advertise these as DCC-Ready.

    -Mark

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    Quote Originally Posted by Spookshow View Post
    Well, in their defense they never did advertise these as DCC-Ready.

    -Mark
    It makes you wonder why they supplied it with those marked tabs on the pcb then doesn't it?
    Oh, and the speaker grille on the bottom.

    As I said earlier, didn't get much help from Bachmann.

    Digitrax on the other hand, knows how to treat a customer.

    I feel confidant that this collection of minds and expertise will help me solve the problem.
    Who needs Bachmann?

    Their products aren't bad, but they could use some lessons on public relations.
    This is the information age, word gets around.

    That's the great thing about forums like this one.
    Those that follow will find the answers they need here. (Hopefully)
    Glad you guys have my back.

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    Quote Originally Posted by lilleyen View Post
    It makes you wonder why they supplied it with those marked tabs on the pcb then doesn't it?
    My impression is that their models are designed mainly in China and whatever shows up here is often a surprise to them. Helluva way to run a railroad.

    -Mar

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  18. #52
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    this thread has been an entertaining read.

    bachmann is all over the place, some things are truly good and some things are
    just as far in the opposite direction.

    this loco in regard to DCC is like so much they do...
    in theory, the PCB is to make DCC installation easy.
    When one gives it a go to add DCC, it may well be removing the thing may be the best path.

    how do they so often manage to get so close to good and then find a way to undo all that effort?
    the old Lt Mtn, the Berk, can anyone explain the sand dome on the K4? the 44 tonner drives me nuts.
    the list can get long.
    For some reason I like the water tower they do. The spectrum 2-8-0 is an example where they got it all to good.

    as long as the price for the items is low, I can tolerate the odd ways of the b-mann.

    victor

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  20. #53
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    Quote Originally Posted by victor miranda View Post
    how do they so often manage to get so close to good and then find a way to undo all that effort?
    The tragic truth perfectly said.


    Quote Originally Posted by victor miranda View Post
    For some reason I like the water tower they do
    Me too
    Thanks, Tom

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