Have a Kato N Scale SD70ACe, Bush 4141. Has ESU DCC sound decoder factory installed. The other day, I knocked the small layout it’s on knowing several cars and a few locomotives off the rails. Nothing to the carpeted floor though!! Now, I’m having issues, in that the locomotive does NOT run, or respond to anything. Shows no signs of power to decoder. However, frame IS getting power, that was checked. Seems as if maybe something blew up on the board. But, no signs of damage, and no odors of burnt electronics! Have ESU manual printed out, for the Select boards. Does this also cover what looks to be a drop in board for the ACe? Ran fine prior to the incident! Do not have a LOK Programmer, since I’ve only got 2 units with ESU sound. The UP 844, and the Bush 4141. And still having issues with getting the LocoBuffer USB installed and working! Help and/or information is much appreciated, as always!! Thanks.