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Pinout for soundtraxx athearn oem decoder?

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  • Member since
    July 2020
  • 8 posts
Pinout for soundtraxx athearn oem decoder?
Posted by Traincraft199 on Saturday, August 1, 2020 2:34 PM

I bought a used athearn rtr sd40-2 on ebay. I want to know the cv list and pinouts for the connections but it's an old athearn soundstraxx decoder and I can't find any documentation on it.

Here are some pictures of it:https://drive.google.com/file/d/147urecJQVUEeodwaBHiX2a7o52FP8WXx/

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Posted by BigDaddy on Monday, August 3, 2020 4:25 PM

No authorization to see the picture

Henry

COB Potomac & Northern

By the Chesapeake Bay

  • Member since
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  • From: Reading, PA
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Posted by rrinker on Monday, August 3, 2020 6:02 PM

 If the decoder is plugged in to the 9 pin connector, it's a completely standard NRMA pinout for the 9 pin, same as any other decoder.

 As for the various tabs around the factory board, the track pickups and motor should be obvious. Fronnt and rear lights are usually in beween the track pickups at the front and rear of the board. The extras for ditch lights are where it gets confusing.

                                --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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Posted by UpNorth on Monday, August 3, 2020 11:05 PM

From Soundtraxx web site :

https://soundtraxx.com/factory-installed/athearn/ready-to-roll/

This is about all you will find.

Marc

  • Member since
    July 2020
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Posted by Traincraft199 on Tuesday, August 4, 2020 10:35 AM

BigDaddy

No authorization to see the picture

 Sorry it should work now

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  • From: Reading, PA
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Posted by rrinker on Tuesday, August 4, 2020 9:43 PM

 Now that I can see the pictures - what are you looking for? All the connections are actually clearly labeled on the board - see your first pic. RF - right front pickup, RR - right rear pickup, M+ - motor +, M- - motor -, SP+ - speaker +, SP- - Speaker -, etc.

                                   --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
    July 2020
  • 8 posts
Posted by Traincraft199 on Monday, August 10, 2020 9:40 AM

rrinker

 Now that I can see the pictures - what are you looking for? All the connections are actually clearly labeled on the board - see your first pic. RF - right front pickup, RR - right rear pickup, M+ - motor +, M- - motor -, SP+ - speaker +, SP- - Speaker -, etc.

                                   --Randy

I don't know what CK and V+ are though

do all soundtraxx decoders have the same cv list?

  • Member since
    February 2002
  • From: Reading, PA
  • 28,720 posts
Posted by rrinker on Monday, August 10, 2020 6:18 PM

 CK is the CurrentKeeper capacitor connection. V+ is the function common (+).

                           --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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