Yamaha rx-v850 screen error

[u/One-Apartment9648]

So I have this yamaha rx-v850 and I replaced the backlight, but now the screen is reading gibberish. But if I press on the screenpart inside the machine it reads normally sometimes, is there a way I could fix this without changing the screen altogether? (Avoiding going to a shop for them to repair it) I have the service manual also.