Gottfried

It didn't work... Also I think it's unlikely for a brand new keyboard to have this sort of contaminant. But I will try other angles as well. Thanks anyway!

Thanks! Do you mean turn the keyboard with the keys at the bottom side and blow with compressed air?

Unfortunately this doesn't help. I bought it on Amazon and they said I need to pay the fee to sent the piano back for replacement or return. So it's some dust inside the key causing this problem? Should I try with a vacuum cleaner? Thanks a lot!

Hi, I just bought a brand new CDP-S100 four days ago, everything was fine during the first three days. However, when I practice today, one of the key (G4) has died, no sounds are produced when pressing it. It's a brand new piano and I couldn't find out the reason. Any advice or suggestion? Thanks in advance!