Yamaha MM8 annoying keyboard noise
I've had my Yamaha mm8 from new for about 6 months. Not long after I got it the keyboard started developing a very annoying noise which keeps affecting more keys along time. the noise is like the keys are rubbing against each other creating this tiny 'ffft....ffft' noise when played.
1. is this a common issue with this mechanism and is it gonna keep getting worse? I recently checked a demo P85 in a shop that had the same noise
2. is there any way to eliminate this some how?