How To Fix Laptop Dark Screen

  Author: Mohammad Awais                                                                              if your laptop screen is dark.don't worry!
i have some solutions for this typical problem.
let's start.
1st give the light on screen if you see there some display  behind the darkness so this is just light problem
second Remove the all screw around the screen front and open front screen cover and look under the LCD have a inverter this is a electrical board and this board  is your laptop LCD light voltage controller
if this is defective we must face like dark screen problem  ,first check this board if this is not good replace this board .
if this is not defective then may you need check the LCD tube light,and this tube light is inside the lcd
Easy Way For Diagnosing :
Pick a broken LCD and open that .all LCD screen must have a tube light on lower side.butt during this be care full . if you get one time tube light you can check many times  with this tube light,
Now insert the tube light pin in your laptop inverter board if the tube light is showing light,
then you laptop lcd tube light is dead if you can try  change tube light so change this butt this is very risky and hard work . may be you lost your screen and time ,if you don't have experience i recommended you replace with new LCD.
3rd if tube light not show light, in this case we should check the inverter ,cable motherboard to inverter board if this is fallty replace it      
THANK YOU