Do digital pianos go out of tune?
Digital pianos/keyboards just use built-in pre-recorded sounds, so there is no mechanism that can gradually become out of tune in the way that the strings of acoustic pianos do over time.
How do I reset my Casio keyboard?
How do I reset my Casio WK3000 to factory defaults (hard reset)?
- Press the Transpose/Function button.
- Cursor down 3 times to Init Mix, cursor right to Init Sys.
- Press Yes twice and do not press any keys when it says “Please Wait.”
- Press Exit once and it's ready to go!
Can you repair digital piano?
But if you can't fix your issue with a reset, the safest and simplest way to repair your instrument is to bring it in to a reputable and authorized digital piano technician. Because many manufacturers void the warranty if an authorized technician doesn't do the work, it's really easy to do damage beyond simple repair.