Did you experience such issues after 3 years of usage? Only 3 years? It's not so encouraging. I'm thinking to buy a new piano, maybe 709 or latest 809 when it will be in the stores, but it seems you posted not a good review! I'm not a technician, so I would not able to replace contacts and electronics on myself, so it would be a very bad problem for me. Any other user experience similar issues with top level CVP models? Thanks.