out of tune yamaha cp33 keyboard
I have a yamaha CP33 keyboard which I bought 16 months ago. I also have a p80 which I absolutely love. I decided to buy another keyboard but the P80 was discontinued so I upgraded to the CP33.
Just today, when I went to play for a student, I noticed the pitch begin to deteriorate and 'stretch' as I played, using the transpose button.
The piano sound is definitely out of tune. Tell me what is happening to the keyboard. Is it defective? I NEVER had this problem with my P80 which I still use and have owed for over 7 years.