All products have a failure rate and therefore it only stands to reason that some screens on the Tyros 3 will fail and have more bad pixels than some people are willing to accept. Generally it requires at least 5 bad pixels before most manufacturers will replace a screen. While most times a bad pixel or two won't affect the user in some cases dependent upon where the bad pixel is it can be very annoying.

It should be noted that bad or stuck pixels can often be unstuck by applying light pressure to the area directly where the pixel is and massaging it very gently. There are also programs you can run to try and renew stuck pixels although they aren't always successful.