Is it possible to fry the programming part of the DCS50 Zephyr command station ? I put a loco on programming track and display came up d nd after a few seconds, I smelled electrical/smoke smell. I took loco off track, unplugged unit. Could smell hot/electrical smell from underside of DCS50. I plugged back in, selected a locomotive to run, and they run. I cannot read/write any loco address or CV's on any locomotives