© 2013 Digitrax, Inc.
www.digitrax.com
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SDH166D Troubleshooting
If the sound does not start in the decoder
1. Make sure you have selected the locomotive address on a throttle. The sound
will not run unless the locomotive is addressed in the system.
2. Check your installation to make sure the decoder is installed properly.
If the sound output sounds distorted
1. Check the speaker cone for magnetic debris that may have collected there.
Debris on the speaker will cause a loss of sound quality and must be re-
moved.
2. Be sure that the CV58 volume is not set at a level that is too high for the
speaker being used.
If the sound in your decoder shuts down after you stop it and you are
not using a Digitrax system for control.
On some DCC systems decoders
are not addressed by DCC packets after the locomotive is set to 0 speed. In this
case after the CV11 timeout elapses (6 second default), sound will “shutdown.”. To
defeat this feature, set CV11=00 to remove the timeout and shutdown.
To make
sounds, the decoder must have a command addressed to it at least once.
If you have trouble reading back CVs on the programming track
, this
may be due to insufficient current draw. Of course you can always just re-pro
-
gram the CV value into a CV to get the desired results, even if reading CVs does
not work. OPS mode is recommended for writing to (programming) all CVs ex-
cept CV01, CV17 & CV18 (2 digit and 4 digit addresses). If a second DCC decoder
is present that is not SoundFX compatible then correct read back of CV data is
not possible, since the NMRA CV read back was not designed for multiple decod-
er read back.
The SDH166D plays a Diesel scheme, but I want the Steam scheme.
If the factory scheme has not been erased, program CV60 to a value of 0 to
reselect the Steam scheme. Alternatively set CV60 to 01 to change to the SD38-2
sound scheme.
I have loaded a new scheme but the CVs and Functions are not what
I expected.
Load the sound project you programmed and then select the
view>project description” menu and then read the text file on the screen that de
-
fines how that project in particular uses CVs and functions for sound generation
and configuration.
Warranty & Repair
Digitrax gives a one year
“No Worries” Warranty
against manufacturing defects
and accidental customer damage on all Digitrax command stations, boosters,
throttles, decoders, power supplies and layout control devices.
That’s it! A simple, straightforward warranty with no tricky language!
Visit www.digitrax.com for complete warranty details and instructions for
returning items for repair.
Please return warranty items directly to Digitrax
- DO NOT return items
to place of purchase.
