I bought a second-hand (possibly third) Privia from someone a few days ago. After some practicing at home, many of the keys have sunken in. Feeling brave, I took the thing apart and had little bits of the hammer fall off (they are small and black, and seem to control the bounce in the keys). After speaking with Casio tech, it seems like it's either I pay another $500 to have them come and replace and repair the whole thing, or i buy a replacement keyboard part from them and DIY. Has anyone experienced this before? TIA
