The laptop screen turns on properly then flickers and goes black. If you restart the laptop the failure sequence repeats.
1. LCD screen inverter failure.
2. LCD screen backlight lamp failure.
Possible troubleshooting steps and repair solution:
When the laptop LCD screen flickers and goes black, most likely the problem is related either to the screen inverter or backlight lamp inside the screen.
You cannot tell which one is failing without testing the laptop with another working inverter or backlight lamp. Both parts have very similar failure symptoms.
If you have to guess, replace the inverter board first. If it doesn’t help to fix the problem, replace the LCD screen. It’s possible to replace just the backlight lamp inside the screen but it’s not easy and should be done by an experienced technician.