I need help. I have a YAMAHA SQ 16. Yes I know it's "Ancient". Nevertheless, it's still very useful at least to me.
The problem is that about seven white keys have "dropped" and I need to get them raised so that the touch sensitivity can be restored. I have noticed that the mechanical design of the key bases for SQ 16 is different from most other brands. Kindly advise on what to do . There is hardly anyone around who can maintain it but at least I can open it up.
I await your response. Thanks a heap.

Lawrence