I have the Pa3x for 4 years now and did not expect an issue this fast.
The screen is expensive and have someone repair it will add more to the bill

Q: Did anyone experience similar issue and could you repair it yourself?
After investigating I concluded all cost are for me. That's why I like to take a look into the machine myself. So I want to open it.
Q: Does anyone know which screws need to be removed so the I can check inside the machine. I do not want to break something you know

I want to check if maybe a lose cable is the issue before spending money.
Looking forward for replies.
There is another item on screen issue in the forum.
See: korg pa3x display problems