Mark, thanks. My intent was that maybe some of the information I posted would help someone else.
Many thanks to GRJ who emailed me a detailed photo of what to do. I was able to de-solder the diodes and get the locomotive running. It now runs perfectly although it still has the premier pacific sound file in it. I have tried three times unsuccessfully to change the sound file. The process keeps hanging up.
I decided to load the MTH Loader program on my laptop which runs Windows 10. It's new but a bottom of the line laptop. I only bought it to have a portable computer. At first it didn't work because I needed something called .NET Framework. I got that installed and now the Loader program now works. I just tried loading the new sound file on the other computer and I get this error message:
X CRITICAL ERROR: NO SERIAL PORTS DETECTED ON THIS COMPUTER.
I can get around a computer but I am by no means an expert. Any suggestions on this?
