Shortly after I bought this locomotive, I ran across some negative info on the MRC decoder and lo and behold, I found out that's the one I have. The manual came with it, so I could reprogram certain items if I chose to, but I didn't. Initially I did set the Long Address to 1005 which worked perfectly. It ran fine for the last 4 months. All functions worked. Last week I was running it and thru some all thumbs glitch, I fat fingered something awful into it and it quit running. I played with it a day or so then had the brilliant idea to run it DC and prove at least that it still ran. It did but you have to run it at half speed for the sounds and light to work right. You get a hokey r/c remote to do the horn, bell etc. That works if you are a foot away from it. On Friday I called Athearn and Monday they answered. They said I needed the manual for that loco which I couldn't find. The guy said to do the reset operation with the r/c remote and if that didn't work to set CV125= 1 and that would also do a reset. Monday afternoon I finally found the manual and did the resets. Yesterday more fiddling around with no progress. This morning I was ready to send it back to Athearn, but needed to try probably the most logical thing. One by one in Program Track Mode I went thru every CV listed in the manual. I found several values that were off the money. When I changed the last bogus value which should have a range 0-2, but was actually 144, the diesel sound started up. It's all working better than ever now.
