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DCC Replacement board for Bachmann 70 ton Switcher

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  • Member since
    February 2007
  • 56 posts
DCC Replacement board for Bachmann 70 ton Switcher
Posted by stocksj on Friday, June 25, 2010 6:27 AM

Hello,

 I have a Bachmann GE 70ton Switcher which has a bad DCC board. The engine will run on DC. What would be a good replacement board for this engine since the DCC and electronics board are combined?

 

 Thanks

Tags: Bachmann , DCC , Decoders
  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Friday, June 25, 2010 7:10 AM

 I don;t think anyone has a board in that form factor, so short of replacing it with another of Bachmann's rather limited decoders, you'll probably have to wire one in. Here's an example from TCS: http://www.tcsdcc.com/Customer_Content/Installation_Pictures/HO_Scale/Bachmann/Spectrum_GE70/Bachmman_Spectrum_GE_70.html  I would also add that you should clip off those yeloow objects attached across the motor wires, those are rf supression capacitors and will interfere with smooth running of a better quality decoder like the TCS.

                                       --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    October 2006
  • From: Western, MA
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Posted by richg1998 on Friday, June 25, 2010 5:53 PM

What is the issue with the PC board other than being bad? I might have a PC board out of a 70 ton I do not need. The PC boards are rather simple.

Rich

If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.

  • Member since
    May 2008
  • 4,612 posts
Posted by Hamltnblue on Friday, June 25, 2010 6:02 PM

 Does anyone make a direct replacement.?  I know the problem is that sometimes they have the Head and Tail Light LED soldered on the board.

Springfield PA

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Friday, June 25, 2010 7:23 PM

Hamltnblue

 Does anyone make a direct replacement.?  I know the problem is that sometimes they have the Head and Tail Light LED soldered on the board.

 Not that I can find, and yes, the LEDs are on the circuit board, but the TCS install pictures show how to get around that.

 The stock DC board won;t do any good, really, the OP has the DCC On-Board version so that board is a decoder. The TCS install shows one with a plain light board, but the overall location of wires and stuff should eb the same.

Edit: I take that back, I looked again and the one shown MUST be the DCC On-Board, there's too many chips on the circuit board for it to just be directional lights.

 

                                                        --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

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