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proto 2000 gp38-2 decoder fit

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  • Member since
    July 2006
  • From: malahide dublin ireland
  • 129 posts
proto 2000 gp38-2 decoder fit
Posted by fingalrailroad on Monday, March 3, 2008 12:01 PM

 

     I  have proto 2000 gp38-2 and i have failed to get a response from the decoder a

digitrax dhi65lo .my nce pro cab will not rec. the decoder,this is in ho,there is some info  on the

 lights for this has anybody over come this problem

 

                                             patrick
 

  • Member since
    December 2004
  • From: WSOR Northern Div.
  • 1,559 posts
Posted by WSOR 3801 on Monday, March 3, 2008 12:21 PM

On these the number board light causes problems.  It is a 12v light, wired to a motor lead and somewhere else.  It ends up causing a short in DCC operation.  Take it out, and things should work. 

The light could be added to the decoder, using the extra function leads on the front of the decoder.

Mike WSOR engineer | HO scale since 1988 | Visit our club www.WCGandyDancers.com

  • Member since
    July 2006
  • From: malahide dublin ireland
  • 129 posts
Posted by fingalrailroad on Monday, March 3, 2008 1:18 PM

           

             thank you,     WSOR3801,I pulled the booths off and removed the number board lights and the rear light, the decoder responded and i have run  the loco successfuly.

 

                                         many thanks

 

                                                             patrick
 

 

  • Member since
    December 2005
  • From: East Granby, CT, USA
  • 505 posts
Posted by jim22 on Monday, March 3, 2008 9:40 PM

When I put a decoder in one of these engines, I pulled off ALL the lamp wires, replaced the lamps with 14v bulbs, wired the head and tail lights to the FOF and FOR outputs, and wired the number boards to the F1 and F2 outputs.  Then I programmed the decoder CVs to turn on both numberboards if the head and tail lights were activated with F0.  With that much rewiring, I just hardwired an NCE decoder instead of using the 8-pin plug.

Jim

  • Member since
    July 2006
  • From: malahide dublin ireland
  • 129 posts
Posted by fingalrailroad on Tuesday, March 4, 2008 4:28 AM

 

    hi jim.

               thanks for the info, i wonder why companies still make fitting a decoder so difficult.

 

                                  regards

                                                   patrick
 

  • Member since
    July 2006
  • From: malahide dublin ireland
  • 129 posts
Posted by fingalrailroad on Wednesday, March 5, 2008 5:34 AM

 

    yes i agree the decoder is super piece of enginering,the loco wiring is a mess.

     thanks everybody we are up and running.

                                                          patrick
 

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