Thank You GGG ! I had a MTH F59 amtrak diesel 20-2189 that stopped listening for the watch dog signal so I sent the boards to him and he replaced the bad board and actually had it in stock.
this is what I call service as I expected to be waiting for the board exchange from MTH itself so didn't think I would see the boards returned so soon actually I think less than 2 weeks time including shipping time to and from!
Thank You so much G, if anyone needs a good and prompt repairman this is a good person to deal with!