how to fix broken keys on a roland electric piano?

If you have a Roland digital piano and some of the keys are no longer working, then the keybed may be broken. The first thing to do is take it to a technician and have them look at it. One of the most common problems that people have with their piano is that the keys get sticky and don’t work properly. This is often because people don’t clean their keys regularly. If you need to replace a broken key on a Roland piano, or any other keyboard with keys that are similar to the ones on a piano, then it's not hard to do.
If you have a Roland electric piano, you may have found that one of the keys is broken and needs to be fixed. There are a few different ways you should try to fix this problem. If you have a Roland digital piano, and one or more of the keys are not working, it could be due to a break in the touch sensor wire. If you have a Roland electric piano, you’ll know that the keys are actually made of three pieces – the key bed, the key and the key cover
If you have a Roland electric piano, then you may find that your keys have become stuck or unresponsive. This can be a huge pain, but there are some easy fixes. To repair a broken key on a Roland electric piano it's a simple process. The first thing you need to do is remove the key that has broken off from the keyboard. Unfortunately, the key will have to be replaced. The good news is that it's a pretty easy fix (about $25-$50) and you can find replacement keys online.
Roland electric piano keys are made to withstand a lot of wear and tear, but they do have a tendency to break. The first thing you want to do is take the key off of the piano.
When keys on a Roland XP-60, XP-80 or XP-120 electric piano stop working, it is almost always because the key sensors have begun to fail.
If you're playing an electric piano or keyboard, and a key is not working, it may be stuck. This is usually caused by the player not releasing the key in time. To fix your Roland digital piano key, you will need to remove the key and take it apart. If you have never done this before, it can be a little tricky.