An F key on my Fatar 880 has stopped working. Pressing the key triggers some MIDI, but obviously not the right one (i.e. no sound when key pressed). And no MIDI (NOTE OFF command) is triggered when releasing the key.
I have no experience in dismantling keyboards, so before I ruin the whole thing or leave it to the service shop I'd appreciate if anyone more knowledgeble could give some guidelines how to approach this problem.