Mark:
Here more info:
"If all this fails,though very remotely,you may have accidentally "locked" your Tsunami.If this is the case it won't accept any CV change,even resetting.You can have the info on "locking/unlocking" your decoder on the Soundtraxx website...Google "Soundtraxx",click on "manuals" then "diesel sound user's guide",page 10."-From Internet Site
Set CV29 to a value of 34 and see if that corrects the problem. A value of 6 is for operating only on the short address. -From Internet Site
Greg