haime

Hi, I have this problem with my Celviano AP650 in some keys. I coudn't find the rubber parts in a good price here in Brazil. I get a person who made them in a 3D printer using PU filament. I changed every keys. Everything is fine now. The keys became slightly noisier. But they are good for me.

Hi,

I'm from Brazil and faced the same touch response problem on 1 Key with my AP650. Fotunately I didn't have to take apart the piano. I just used the air compressed can a couple of times between the keys, using the extension tube to reach inside. It worked! Thank you for your help.