Soundtraxx Decoder & Bachmann Shay : LUSENET : Wiring for DCC : One Thread

I have a Bachmann On30 Shay with a Soundtraxx DSD-B2TSLC decoder running with a Digitrax Zepher. Everything works fine except I canít change the volume on the exhaust or Air pump. Iím no steam expert so I donít know which is which. I change the CV 122 and it still is very loud. The chuffing rate and volume is ok as I installed the cam. Can anyone help?

-- Gary Smith (, April 11, 2004


I don't believe they are independently adjustable. I have asked for this feature, but it doesn't seem that anyone else besides me and you that thinks this is a good idea.

-- Allan Gartner (, April 11, 2004.

The air pump is the sound that's going after the loco stops, the volume cv for the air pump is #123. The exhaust is the chuffing, it's cv is 122. both of mine are set in the decimal 70's.

-- Steve wilbur (, June 04, 2004.

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