Hi Bernie,

This seems to be a fairly rare occurrence, as I have seldom had any reports of noisy keys...however, it obviously occasionally does happen.

If all (or most of) the keys are clunking, then it is probably a prematurely worn felt strip/pad that is under the keybed, and I think this can be replaced with a new part.

Here is a YouTube clip of the key removal/replacement/repair of a 10 year old CLP Clavinova.

http://www.youtube.com/watch?v=j8HzWe0p2Tg

Also, there is some great information on this Clavinova CVP Forum, and perhaps someone there has already done the deed with key noise repair.

http://www.cvpug.com/

I hope these links give you some help.

Yamaha has always been making it's own hammer actions for as long as I've been with the company (over 25 years), and they are considered by many pros, like Stevie Wonder and Mike McDonald (of Doobie Brother's fame) to name a few, as one of the best available today.

I occasionally use the Yamaha P-85 and P-95 as an 88-note controller for my Tyros4, when I have the periodic need for full piano-feel keyboard control. For a very reasonable price, they manage to utilize a beautifully weighted graded hammer action, that is a real delight to play.

Do you still have and use the Audya? AJ has done some terrific support work on it, don't you agree?

Ian