Firstly, apologies that I'm not an electrical engineering enthusiast, I just have a piece of hardware that's stopped working, and I want to get it solved.
I have a midi keyboard, and some of the keys have stopped working. So I opened it up and cleaned the contacts with contact cleaner.
The same keys don't work. I tried pressing the pads directly, and they don't work.
Does this just mean that the contacts are burned out and there's nothing I can do about it? Or is it possible that the cause of this is some where else? (On the multi-pin plugs?).