Can you replace keys on a Yamaha keyboard?
One major advantage to having an electronic keyboard instead of a stringed piano is that if the keys are ever sticky or broken, they're relatively easy to replace. If you're unsure about what you're doing, it's best to take your Yamaha keyboard to a local music shop or Yamaha dealer to fix the problem.
Can you replace keys on a piano keyboard?
While there are several reasons that your key on your digital piano is broken, the fix is usually gone about the same way. ... The only tools you will need are a Phillips screwdriver, potentially a replacement key that you get from the manufacturer, and potentially some glue.