Korg Krome Screen with lines

Hi, I had problems with the screen of Korg Trinity, sudenly appeared some horizontals lines, but sudenly too, the problem desapeared.Today I have a 88 keys Korg Krome, and the fault is repeated.
I don’t know if to wait too, or replace the screen??
Thank so much

I bought a new screen in Synthaur company, but I’m still waiting because the flight in Argentina are stopped and I have to wait an special flight.
Bye bye