I had my Privia PX-150 for several years, completely problem free. Recently, one note lost its velocity sensitivity, so I decided to open it up and clean with compressed air after watching several very helpful videos on YouTube. All seemed fine when I put the unit back together. The problem key now worked perfectly again. However, I noticed that the top 4 keys no longer produced any sound. Thinking that I may have disturbed something when I was attending to my problem, I opened the keyboard up again, but couldn't see any thing wrong. Did anyone else have a similar problem, and if yes, what did you do to fix? I'm fairly handy, but new to taking on keyboard repairs. Thanks and very much appreciated.
Perry