The master volume control CV is CV58, its values range from 0 to 15. The factory default value for this is 09.Digitrax SFX decoders have a factory default value of 09 set for CV58. This works well for 32 ohm speakers.The decoder will reset to this value whenever you do a decoder reset of CV8=8. Digitrax SFX decoders built for use with 8 ohm speakers should have this value changed to 4 or 5 for best operation value of 4 or 5, since the decoder may not supply enough current at high volume/drive levels.Your results may also depend upon track voltage present. Kato USA says ...
Q: I have read in some of the model magazines that the F2 button on the DT400 is a pressure sensitive playable whistle button. I have not noticed any difference in sound with the F2 button on my DT400. Is there some way to determine if this feature is present on my throttle? A: Most Digitrax DT400 and all DT402 series throttles have the capability of implementing the playable whistle feature when used with Digitrax sound decoders.Prior to the release of Digitrax sound decoders this feature was considered as an experimental throttle feature and was not fully documented. Once Digitrax released ...
Digitrax SoundFX lets you make your locos sound like the real thing!Remember, your Digitrax SoundFX 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. When used in conjunction with a separate DCC motor decoder in a single locomotive it is most practical to program both decoders to the same address and operating modes.For a more prototypical railroading experience, ...
The sound performance of any speaker is greatly affected by where and how the speaker is mounted and whether an adequate speaker enclosure or baffle is installed.The baffle is used to isolate to speaker diaphragm's front side sound waves from the out of phase rear sound waves. This minimizes sound cancellation, particularly at lower frequencies. For most efficient sound generation, the volume of the baffle should be as large as practically possible. The baffle walls should be acoustically rigid to prevent acoustic interference.Practical materials to use for the baffle are plastic, cardboard and sheetmetal. Common items such as cardboard tubes ...
If the sound output from your SoundFX decoder is distorted, try the following: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 removed. This is a common problem in speaker installed facing down toward the track. Remember, speakers are magnetic and will vacuum up magnetic debris along the track.2. Be sure that the CV58 volume is not set at a level that is too high for the speaker. For impedances below 32ohms (e.g. 8 to 30 ohms) set the volume setting lower to ...
I have loaded a new scheme but the CVs and Functions are not working as I expected. Load the sound project you programmed into Sound Loader.Select the "view>project description" from the menu.The text file that describes how the project you have loaded will appear on the screen.Read the text file to be sure the sound project is suitable for your needs.If not, load a different sound project and see if it works better for your application.
Many Digitrax SoundFX decoders come with two different sound schemes pre-installed. Check the decoder instruction sheet for which sound schemes are installed in the decoder you are using. Instruction sheets are available on this website on the product pages for each decoder.The decoders come from the factory with CV60 programmed to a value of 01 to play the default scheme. If you want to play the other pre-installed sound scheme, simply program CV60 to a value of 00. You can switch back and forth between the two schemes. Changing CV60 does not erase either pre-installed schemes.If you want to download ...
If you have trouble reading back CV's on the programming track, this may be due to insufficient current draw on the SFX064D function leads. You can always just re-program the CV value into a CV to get the desired results, even though reading CVs does not work. OPs mode is recommended for programming all CVs except CV01, CV17 & CV18 (2 digit and 4 digit addresses). If a second DCC decoder is present that is not Sound FX compatible then correct readback of CV data is not possible, since the NMRA CV readback was not designed for multiple decoder readback.
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 factory default setting for SoundFX decoders), sound will shut down. To remove the timeout and prevent sound shutdown, set CV11=00. This would leave the sound in the locomotive on until you remove power from the loco.Digitrax command stations continue to refresh locomotives by periodically sending packets to them as long ...
Most intermittent operation faults on all layouts, not only DCC ones, are caused by bad electrical connections and poor wheel pickups on locomotives. Poor electrical contact causes problems with sound decoder operation in particular. Sound decoder installations usually include a capacitor to store energy to keep the sound going when the decoder briefly loses electrical contact. When the track is dirty or corroded, it can't transmit the electricity and DCC signal needed to run locomotives. When the locomotive pick ups are dirty or corroded, they can't pick up the signal from the track. Check your track cleanliness and quality of wheel pickups ...
If the sound does not start when you run the locomotive with a sound decoder installed try the follwoing:1. Make sure you have selected the locomotive on a throttle. The sound will not run unless the locomotive is addressed in the system.2. Make sure the sound is not muted. Try toggling F8 which is the Digitrax standard function for muting the sound decoder.3. Made sure the volume in your decoder has not been turned down to a very low level.4. Check your installation to make sure the decoder is installed properly.
SDN144K0A installation question about the capacitorIs the 100microF capacitor needed? Or is it only for use in the Kato E8B unit when both LEDs are removed? If it is part of the installation, what size hole doesit need for mounting? The 100uF capacitor is required for all installations. The capacitor provides keep alive voltage to the decoder. This is important when the locomotive runs over a section of dirty track or is traveling through a non powered (insul-frog) turnout. On non-sound equipped locomotives, typically you will not see the locomotive hesitate or lose power when it encounters dirty track. With ...
Digitrax SoundFX Decoder Troubleshooting Guide This troubleshooting guide assumes that you are working with an operating Digitrax system that is able to run trains and that the locomotive you are troubleshooting is operational and has a Digitrax sound decoder and speaker installed correctly. If there is no sound, first make sure the decoder is not muted: Press the Function 8 (F8) key, and make sure F8 is OFF. Function 8 is used to toggle between sound active (F8 OFF) and mute (F8 ON). If there is no sound and the locomotive won’t move when the address is selected on your ...