Laptop won't turn on!

[P4PC]

I, not sure if this is the correct place anyways.

I have a old powerbook G4 mac around year 2004-2005. It has been running smooth and everything until one day the screen went totally black, I tried pressing buttons and stuffs but it was there forever. So I turned it off by holding power button and now it won't turn out. The battery is fine and power cable too. Any ideas here guys?

 

[Zimano]

Something probably burned or made a short circuit. You might want to check inside the laptop to see if anything has been damaged. Can you acces the BIOS?

 

[P4PC]

nope, literally doesn't turn on. I know it's old but that is what's keeping my kids away from my new desktop and laptop.