SoundTraxx DSD-150/DSX Owners Manual - Manual (Page 31)

Digital Sound Decoder Owner's Manual 31
There are a several throttles on the market that have only five function buttons. The following example describes one
way to reconfigure the DSD for such a throttle and still maintain access to most of the DSD’s functionality.
We’ll use the FL (F0 on some units) key for turning on the headlight and backup light and use automatic direction
control to select which light is on. Since lights require electricity, we’ll also set the dynamo to come on automatically
when the lights are turned on.
We’ll use the F1 key to turn on both auxiliary function outputs F1 and F5. This makes particular sense if both outputs
have been setup as a firebox flicker effect
The F2 and F3 keys will be used for the whistle and bell respectively. The F4 key will control the coupler clank sound.
The two functions that had to be given up are the cylinder blow down effect and the audio mute function. The cylinder
blowdown effect can still be used by enabling the automatic blowdown effect (see Configuring Background Sounds)
which will produce the effect whenever the locomotive is brought to a stop. The audio mute function can be imple-
mented by setting CV 50, volume control, to zero when sound is not desired. Not too bad a sacrifice!
Using the DSD Technical Reference, we look up the proper bits to set for each CV and after a bit of head scratching,
come up with the following list of values:
CV 33 = 129 (0x81), FL(fwd) = headlight and dynamo
CV 34 = 130 (0x82), FL(rev) = backup light and dynamo
CV 35 = 68 (0x44), F1 = F1 and F5 outputs
CV 36 = 8 (0x08), F2 = Whistle
CV 37 = 2 (0x02), F3 = Bell
CV 38 = 32 (0x20), F4 = Coupler
CV 39-42 = 0, Functions not used.
Once these are programmed into the proper CVs, the DSD will exhibit the functionality described above. To enable
the Auto-blowdown effect, set CV 51 to 255 (0xFF).