Chosen Solution
My ativ book 500t is chargable and when i press the on button, the blue light next to te senser blinks and the power indicator turnson but the screen is black what is wrong with my tablet?
Just to be sure it is not the backlight, power it on as you usually would and shine a bright flashlight onto the screen and see if you can make out anything on the screen. If you can it is probably a backlight fuse or simply just a dead backlight.