Computer turns on but the screen is black

Solution
Try this.

1. Turn off the laptop.
2. Connect an external monitor.
3. Turn on the external monitor.
4. Turn on the laptop.

If you can see your screens on the external monitor, then either the attached display is damaged and needs replacing, or the ribbon cable that connects it may be the culprit.

If you can't see anything on the external monitor either, then your graphics card is probably the problem.
Try this.

1. Turn off the laptop.
2. Connect an external monitor.
3. Turn on the external monitor.
4. Turn on the laptop.

If you can see your screens on the external monitor, then either the attached display is damaged and needs replacing, or the ribbon cable that connects it may be the culprit.

If you can't see anything on the external monitor either, then your graphics card is probably the problem.
 
Solution