Everything on model trains, model railroads, model railways, locomotives, model train layouts, scenery, wiring, DCC and more. Enjoy the world's best hobby... model railroading!
How To Slow My Athearn RTR SD40
Tom writes:
“I have an Athearn RTR SD40 which won’t slow down. I’ve tried speed table programming without success. It has a soundtraxx Tsunami decoder. Anyone else had this happen?”
Add your comment, and view answers sent in by others by clicking ADD A COMMENT below.
SUBMIT YOUR QUESTION
Call soundtraxx. They are very helpful in selecting the proper CV setting.
Usually cv03 is the program setting for acceleration and cv04 is deceleration.
Tom, if you haven’t already, check the Motor Starting Value cv02. Lower setting = slower start. may be set too high.