Michael500

Thank you very much for your helpful post. I have the same keyboard but only one key was affected. I purchased all 7 strips from PacPart, tore down the whole thing and replaced the strips. Piano plays like new again! I had been chasing this problem for over a year before I found your post. I'm guessing every Casio piano is built this way and this fix probably would work for 90% of these issues. Thanks again for your help!!