I bought a used Yamaha P-45 few months ago. It's pretty old, like 5+ years old.
It worked fine all this while, but last week the electronic started misbehaving where the piano thinks the function key is always pressed, even though it's not. For example, if I press E4 key, it will turn on the metronome instead of playing the note. Basically the piano is unplayable. Can't even use it as a midi keyboard.
I tried so many things, from doing factory reset by holding down C8 while powering on, to leaving the piano unplugged for few days, and also tried to disassembling it, cleaning some dust from the board, then reassembling. But nothing works. This reddit post has the same problem as mine, in case you're wondering what the problem looks like: https://www.reddit.com/r/piano/comments/vwg...ha_p45_problem/

So the only thing left to do is send it to a technician. Anyone know any reputable digital piano technician in KV area?

Update: Nvm I managed to fix it myself. The issue is with the function switch, it's malfunctioning. I don't really use the function key, so I just desoldered it.

This post has been edited by imnotabot: Jun 11 2023, 10:50 PM