Complete Train Control
Run Your Trains, Not Your Track!
©2011 Digitrax, Inc.
www.digitrax.com
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ation it is useful to connect the optional 100uF storage capacitor or larger value
to help overcome pickup dropouts due to dirty track etc.
Using this decoder in other locomotives
The factory supplied SDN144A0 sound project is selectable for an GP38
(default) or Alco C420 diesel locomotive, by the value in CV60. If you want
to install it in a different and compatible locomotive, such as; an Fairbanks
Morse H16-44 or SD24 etc, you can simply load a different sound project for
that type of locomotive. For all installations it is likely that the frames and/or
shells may need modification, and it is possible to use another after-market
8ohm speaker e.g. round 13mm to allow an easier install.
Customizing Your Decoder
Your Digitrax SDN144A0 Sound FX decoder is ready to run and will operate
and generate sound using address 03 with no additional programming. On your
Digitrax system, simply select the locomotive’s address and the sound will
start. On some DCC systems, it is necessary to select the locomotive address
AND send a command to start the sounds.
For a more prototypical railroading experience, your decoder can be
customized for your specific locomotive by programming some of the
Configuration Variables, or CVs, available. Digitrax Sound decoders can be
programmed using either the paged mode or direct mode method on a
programming track or with the operations mode using the main line. See the
Digitrax Decoder Manual or the Digitrax web site for more information.
Initial Test and Programming:
This decoder is preprogrammed and tested
with an GP38 diesel locomotive sound scheme, and is ready to operate on
factory default address 03. Before customizing the decoder it is useful to
run it on the factory default address 03 to check the installation. The follow-
ing sections show how to change the locomotive address and customize the
decoder
For more information on general decoder installation and programming tech-
niques and examples visit the www.digitrax.com
Changing the Decoder Address
The first CV most people change is the decoder address. This allows you to
independently control each loco with a unique address. Digitrax decoders are
shipped with CV01 (AD2), the two digit address, set to 03. Following is a brief
description of how to change the decoder address with a Digitrax DT series
throttle. See your Starter Set Manual for complete programming instructions.
1. Place the loco on the programming track. Go into Program Mode on your system.
On DT400/DT402 press
PROG
. On DT300, DT100 & DT200 press
RUN/STOP &
