Yamaha P45 digital piano fixing keys
Why a Yamaha P45 digital piano key may not stay up.
How to fix a Yamaha P45 digital piano key that won't stay up.
If a key on your Yamaha P45 digital piano is not staying up, there are a few things you can do to fix the problem.
First, check to see if the key is loose. If it is, simply tighten the screws that hold it in place.
If the key is not loose, then the problem may be with the spring that helps lift the key. To fix this, you will need to open up the piano and locate the springs. Once you have found them, adjust them so that they are tighter or looser, depending on what is needed to make the key stay up properly.
If neither of these solutions works, then you may need to replace the entire key assembly. This is a more complex repair and should only be attempted if you are comfortable with working on pianos and have experience with this type of repair.