Thanks, Audrey. No, I am not using anything done on the KN6000 but I thank you for the warning.

Thanks to you, Bill. You do bring up a very good point. My uncle had this keyboard and it was a unit marketed for the U.K. He had a good organ technician that put in a U.S. power supply and was told that it is totally a U.S. model. I don't know about whether the fuse that you mention is still in it. If the U.S. models normally don't have them, I would think with the conversion, it would be removed. Yes, I did immediately check to see if the plug in the keyboard and in the wall were tightly secure and they are. Do you think installing the Expansion Boards have anything to do with this? So far, it hasn't happened again but as I said, I haven't used the keyboard much since it did.

Mark