hey i'm a IT girl pretty sure i can fix it, but you have yet to power to the system nor have said in any detail of the problem...so please give some details so i can bid!!
The lap turns on without any problem, but I can't see anything on the screen this is mine I borrow to a friend and he gave back just like is now really don't know why the screen i can't see anything try on others screen and the same happened here.
hp laptops are the worse for over heating, it would be running then go to black screen or when you cut it on it powers up but no screen,, my son had one he left his running on the bed all the time and over heated and now a black screen, its been in the shop now for over a month and they cant seem to fix it, over heated the video part on the motherboard