Yamaha CP300 sticking key

[Justin Havu]

Played our church's CP300 for a Wednesday night service, and the A above middle C has a bit more resistance to it then the other keys, it almost feels like it's sticking on something. Going to see if I can investigate the issue this afternoon.

[Skinny]

Look straight on at it at key level. Is the key tilted to the left or right? I remember a common problem with Yamaha keys where the plastic near the pivot point of the key would fail, and it would tilt one way, causing it to rub on the adjacent key. Used to happen all the time to my church"s Clavinova.

[synthizen2]

Look straight on at it at key level. Is the key tilted to the left or right? I remember a common problem with Yamaha keys where the plastic near the pivot point of the key would fail, and it would tilt one way, causing it to rub on the adjacent key. Used to happen all the time to my church"s Clavinova.

 

Yes... this is exactly what happened to a Clavinova CLP-350 that I still own but no longer use (a few keys now trigger at full velocity, and I never bothered to fix that). But back when it was working, I had to do the above broken-pivot-point repair by simply replacing the offending key.

[Mr -G-]

Same thing happened to me with a P80 piano. If you look in the net, somebody suggested a fix by inserting/embedding a hot pin in the plastic to recreate the pivot point at the end of the key and make it stand vertically.

That might work but instead of experimenting I just ordered a new key from Yamaha and replaced it myself.

Just note that keys have a note name and number (D 110 in my case). They asked me that when I ordered it (it is printed/engraved on the top and on the bottom, towards the pivot end). I do not know if all the same-note keys are interchangeable.

[Justin Havu]

Thanks, all! The key itself was in perfect shape. There was a ton of nasty white gunk on top of the hammer underneath where the key sits. Cleaned it, and she's good to go.