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HEy Guys well I was a new owner to a soundtrax 820041 decoder last week from the train show in Springfield. I was all happy to get it home and play. Well I did after I installed it in my SD70M UP. I did everything right I might add. I got it home and ran it on my layout and it was running choppy but I figured it was because it was brand new and the loco was too. So i had it on the layout for a few days trying to get a smooth run. What I was experiencing was this I would start the loco speed up and it would start to move and then stop and start to move and stop a few times. So I thought nAturally a dirty track and got to cleaning. Then When I got to a section on my layout behind Burger King I have a reverse loop module there because the trains heads in the opposite direction. So I have the tracks isolated. Once it hits the isolation section It ALWAYS shorted out. ALWAYS. SO After I gave it a push passed that point and it was in a isolated section where my Reverse lop module does it job. I would hit the stop button on my Lenz throttle to reset it and start the lco back up. After doing so It was on. I then gave it some power to go and as soon as I di The Reverse loop module under neather would be making that sound like the guy from the computer commercial "LIKE A YETTY" It was clicking as fast as the motor I made go. Then it would get to the next isolated section and ZAP! Short curciut and shut off again. I had this problem over and over again. WOuld not go away with all I tried. I check and cleaned track. Checked all my wiring to the loco over and over. I even went far as to remove the decoder and install in another loco think I had a Loco problem. Nope didnt work. In fact once in the new loco it would do the same thing, in which that loco ran fine an hour before I removed the Digitrax decoder from it. So it defintely was not the loco. I finally had to call Soundtraxx and he said I did a great job trouble shooting and he could not offer anymore so send it to them to test it out there and if all is right it was a wiring problem (NOT) and if there is a problem they will fix it or send me another one. The weird thing is it would really act up on the reversing. I wonder if the decoder was not reconizing the switch and shorting out or just not switching therefore causing the short. That seems more likely since all my other trains operate perfectly fine through there. The moral to this topic is the more you spend the more problems you have. [B)]
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