- 25 Jun 2017
I have recently purchased a LGB 20985 Loco with a new MFX decoder. The Loco uses a 5-volt smoke unit and the performance is not up to par. It is very weak compared to some of my older LGB models. I contacted Marklin and they sent me another smoke unit. I also had the same problem with my 20755 Loco with MFX. I replaced the unit in the 20985 the other day and it worked about the same. I then tested the voltage output under load and it is right at 5.17 volts. Some of my older LGB with 5-volt smokers do very well but I find the voltage output is closer to the 6 volt range. I would like to raise the voltage slightly but I can't figure out which CV controls the smoke voltage. I use a Massoth system and recently was able to adjust the sound volumes for all the different sounds with out any issues. It seems as long as the cv value range is 0-255, the massoth system will adjust those cv's just fine. I just can't understand the manual and have no idea which cv controls smoke unit voltage. Does anyone know or have a more detailed CV list then what the loco manual provides? Any help would be much appreciated.