Thanks for your help. I was able to pull up the black cover over the F1 switch around an eighth of an inch-but realize to 'wipe' the contacts you have to remove the whole large control board-then you should be able remove the black plastic cover to get at the contacts (well-maybe). I'll contact Ketron to see what they suggest. I can now save my registrations-guess the slight movement of the switch cover -along with pushing the button down-while sort of 'rocking it' helped a bit.
Cheers!
Gord