Chosen Solution

I plugged my Mac to power and started using it ,after 20-30 minutes of use the display light turned off while the contents of the display still there. I rebooted my Mac but the problem still stays the display works but the display light is gone? Help me identify the problem?

This will likely require some deep skills to properly identify which component on the logic board needs replacing. Do you have access to schematics and boardview drawings? You’ll also need the tools and skills to solder small SMT component? I would recommend locating someone locally who has the skills to fix your system.