Athearn SD70 not DCC ready? Or is it?

Athearn SD70 not DCC ready? Or is it?

Post by Rathburn » Thu, 18 Oct 2001 01:01:36



I finally got around to assembling my "ready to run" Athearn SD70.
I don't see any DCC plug inside or any mention of DCC in the instructions.
It is a wiring job?  Does anyone know where the wires go to?
Any idea why there is no DCC plug?

--
Please visit
http://communities.msn.com/BubbasBendRailfanandClearCutSociety/photos...
to see some of my train photos.

 
 
 

Athearn SD70 not DCC ready? Or is it?

Post by Marc Goldstei » Thu, 18 Oct 2001 06:39:55


"DCC Ready" with the SD70 series means that the circuit board is sized to be
replaced with either the Digitrax DH150A or the NCE DA-SR type decoders. A
bit of a stretch of the term, I agree, but I really like the NCE decoders so
I would have used one anyway.

Marc

Quote:
> I finally got around to assembling my "ready to run" Athearn SD70.
> I don't see any DCC plug inside or any mention of DCC in the instructions.
> It is a wiring job?  Does anyone know where the wires go to?
> Any idea why there is no DCC plug?

> --
> Please visit
> http://communities.msn.com/BubbasBendRailfanandClearCutSociety/photos...
> to see some of my train photos.


 
 
 

Athearn SD70 not DCC ready? Or is it?

Post by David R. Campbel » Thu, 18 Oct 2001 07:17:13


Quote:

> I finally got around to assembling my "ready to run" Athearn SD70.
> I don't see any DCC plug inside or any mention of DCC in the instructions.
> It is a wiring job?  Does anyone know where the wires go to?
> Any idea why there is no DCC plug?

> --
> Please visit
> http://communities.msn.com/BubbasBendRailfanandClearCutSociety/photos...
> to see some of my train photos.

The best way in my opinion is to use a decoder that replaces the
existing board. I just completed two SD70M's. One using a Digitrax
DH150A, while the other has a NCE DA-SR installed. I did this to compare
them. All connections were soldered, and the Athearn bulbs were replaced
with 1.5 volt Miniatronics bulbs. I have the ditch lights wired to flash
on the NCE unit which turned out great.

I have only a few locomotives that I have installed decoders in and I
was trying to come up with a way to install the resistors for the 1.5
volt bulbs and locate them so they would not cause problems. I finally
decided to mount them directly on the decoder which worked very well.
This allowed me to isolate them from other components and make sure they
do not touch anything.

My choice is the NCE DA-SR since the locomotive runs smoother than the
one using Digitrax. I should say that they were programed using the
standard speed table and I may be able to make the Digitrax match it I
guess. The NCE unit is sold as the silent running series decoder. As it
turns both run without motor noise but the NCE equipped unit seems to
run smoother. I hope this helps.

best regards,

David Campbell
Norton, VA

 
 
 

Athearn SD70 not DCC ready? Or is it?

Post by Rathburn » Thu, 18 Oct 2001 08:24:48


Thanks.  I need to replace the ditch light bulbs which I broke anyway so
will try that.
I hope the decoders come with some sort of instructions?

--
Please visit
http://communities.msn.com/BubbasBendRailfanandClearCutSociety/photos...
to see some of my train photos.

Quote:


>> I finally got around to assembling my "ready to run" Athearn SD70.
>> I don't see any DCC plug inside or any mention of DCC in the
instructions.
>> It is a wiring job?  Does anyone know where the wires go to?
>> Any idea why there is no DCC plug?

>> --
>> Please visit

http://communities.msn.com/BubbasBendRailfanandClearCutSociety/photos...
Quote:
>> to see some of my train photos.

>The best way in my opinion is to use a decoder that replaces the
>existing board. I just completed two SD70M's. One using a Digitrax
>DH150A, while the other has a NCE DA-SR installed. I did this to compare
>them. All connections were soldered, and the Athearn bulbs were replaced
>with 1.5 volt Miniatronics bulbs. I have the ditch lights wired to flash
>on the NCE unit which turned out great.

>I have only a few locomotives that I have installed decoders in and I
>was trying to come up with a way to install the resistors for the 1.5
>volt bulbs and locate them so they would not cause problems. I finally
>decided to mount them directly on the decoder which worked very well.
>This allowed me to isolate them from other components and make sure they
>do not touch anything.

>My choice is the NCE DA-SR since the locomotive runs smoother than the
>one using Digitrax. I should say that they were programed using the
>standard speed table and I may be able to make the Digitrax match it I
>guess. The NCE unit is sold as the silent running series decoder. As it
>turns both run without motor noise but the NCE equipped unit seems to
>run smoother. I hope this helps.

>best regards,

>David Campbell
>Norton, VA

 
 
 

Athearn SD70 not DCC ready? Or is it?

Post by David R. Campbel » Thu, 18 Oct 2001 09:18:25


Quote:

> Thanks.  I need to replace the ditch light bulbs which I broke anyway so
> will try that.
> I hope the decoders come with some sort of instructions?

> --
> Please visit
> http://communities.msn.com/BubbasBendRailfanandClearCutSociety/photos...
> to see some of my train photos.


> >> I finally got around to assembling my "ready to run" Athearn SD70.
> >> I don't see any DCC plug inside or any mention of DCC in the
> instructions.
> >> It is a wiring job?  Does anyone know where the wires go to?
> >> Any idea why there is no DCC plug?

> >> --
> >> Please visit

> http://communities.msn.com/BubbasBendRailfanandClearCutSociety/photos...
> >> to see some of my train photos.

> >The best way in my opinion is to use a decoder that replaces the
> >existing board. I just completed two SD70M's. One using a Digitrax
> >DH150A, while the other has a NCE DA-SR installed. I did this to compare
> >them. All connections were soldered, and the Athearn bulbs were replaced
> >with 1.5 volt Miniatronics bulbs. I have the ditch lights wired to flash
> >on the NCE unit which turned out great.

> >I have only a few locomotives that I have installed decoders in and I
> >was trying to come up with a way to install the resistors for the 1.5
> >volt bulbs and locate them so they would not cause problems. I finally
> >decided to mount them directly on the decoder which worked very well.
> >This allowed me to isolate them from other components and make sure they
> >do not touch anything.

> >My choice is the NCE DA-SR since the locomotive runs smoother than the
> >one using Digitrax. I should say that they were programed using the
> >standard speed table and I may be able to make the Digitrax match it I
> >guess. The NCE unit is sold as the silent running series decoder. As it
> >turns both run without motor noise but the NCE equipped unit seems to
> >run smoother. I hope this helps.

> >best regards,

> >David Campbell
> >Norton, VA

Yes both come with complete instructions. The NCE info is a little
easier to follow in my opinion.

David Campbell
Norton, VA

 
 
 

Athearn SD70 not DCC ready? Or is it?

Post by Frisco20 » Thu, 18 Oct 2001 11:59:03


Well, darn!

Everybody else's SD-70 had a built-in board!

Wonder how yours might have been left off...

 
 
 

Athearn SD70 not DCC ready? Or is it?

Post by Rathburn » Thu, 18 Oct 2001 22:46:39


??  It this a joke or something? There is a board inside the unit, but it is
not a DCC
decoder.

--
Please visit
http://communities.msn.com/BubbasBendRailfanandClearCutSociety/photos...
to see some of my train photos.

Quote:
>Well, darn!

>Everybody else's SD-70 had a built-in board!

>Wonder how yours might have been left off...

 
 
 

Athearn SD70 not DCC ready? Or is it?

Post by Nicholas Lorvi » Thu, 18 Oct 2001 22:51:58


Quote:
> ??  It this a joke or something? There is a board inside the unit, but it
is
> not a DCC
> decoder.

You take out that curcuit board and replace it with a decoder, either the
Digitrax DH150A or one of the NCE ones that fit. It's not a big job, the
most pokey part is the bulb bit, either installing resistors or changing
them with higher voltage ones.

Nicholas
Lier, Norway

 
 
 

Athearn SD70 not DCC ready? Or is it?

Post by Rathburn » Thu, 18 Oct 2001 23:14:31


Got it thanks much.

--
Please visit
http://communities.msn.com/BubbasBendRailfanandClearCutSociety/photos...
to see some of my train photos.

Quote:

>> ??  It this a joke or something? There is a board inside the unit, but it
>is
>> not a DCC
>> decoder.

>You take out that curcuit board and replace it with a decoder, either the
>Digitrax DH150A or one of the NCE ones that fit. It's not a big job, the
>most pokey part is the bulb bit, either installing resistors or changing
>them with higher voltage ones.

>Nicholas
>Lier, Norway