Korg Trinity

Hello All, hopefully I can get some help here. I have old Korg trinity
keyboard in excellent condition which has only seen occassional use in my
home studio. Mysteriously, the F# key above middle "C" quit working for no particular reason. Has any Korg keyboard owner experienced this
problem before? Does anyone have any ideas? Thanks in advance for
time.

I'm assuming that if you're playing a program, the F and G keys on either side of it both sound the program? (In other words, you haven't set up your sound to stop at the F immediately below that F#?) If so, take it in to get it looked at.

In general, you might also want to try korgforums.com for questions about Korg gear; the people over there have a much larger breadth of knowledge about Korg gear than people here (I post on both).