Backlight not working even after screen replacement.

Hello,

I spilled coffee on my laptop. I got the laptop back running normally after unplugging the dock connector and it worked fine for a long time. But the coffee also got into the screen and it was driving me crazy. I decided to try to fix the screen by taking it apart and wiping the coffee away. When I plugged the screen back, the backlight wasn't working. I ordered a new screen and I got the same issue. I think it might be an issue with the motherboard. The old display could short the circuit. Where are the backlight fuses located?

Thanks for help, Jacob