Maybe I'm trying to solve a problem that I don't have.  With some of my other DCC engines, I can press a function key (like 3 or 6) and the engine will appear to turn off (perhaps the decoder is still active).  With my Bachmann's (Climax, Shay, 4-6-0), they continue to give off sound (which I can of course mute).  Someone suggested that keeping them "on" is using up power.

Am I worrying about a problem I don't have?

Thanks.

I have several Bachmann HO Spectrum DCC w/sound engines and they run great.  What function key (or other key) do I use to turn them off?  Right now they are all "on" as long as they are on the track.

Thanks for your help.