I have two DD40AX locos and one stopped running.  It was running when it just stopped.  I am using DC so I have to switch power between different blocks to run more than one loco.  It is possible it got power from two different blocks as it transited the insulated joint between the blocks.  This has happened before and it stopped also, but after the fuse reset it worked fine. 

What can I do?  I guess I could send it to you, but I am somewhat knowledgeable of electronics and if it needs a new fuse I could probably change it.  I noticed you have a new board with decoder for $55, but I don't need a decoder.  Another possibility is to jumper the fuse or jumper in another fuse. 

Bach-man: need help, Thanks, vonlocomotive