#Laptop screen not turning on cracked#

This laptop video fails in a little bit different way. HereвЂ™s another laptop with backlight failure The laptop screen has a faulty backlight lamp. Make sure the connector on the backlight lamp is similar to the connector on your LCD screen.ДЄs soon as I turned on the laptop, my backlight lamp lighted up. You can find a new backlight lamp on eBay.В Try to find a backlight with the connector already attached to it, so you can plug it into the inverter board.

#Laptop screen not turning on cracked#

So, I was right, this problem is not related to the inverter board.ДЇinally, I disconnected the screen backlight lamp connector from the inverter board and connected my test backlight lamp (I removed it from another cracked screen). The screen didnвЂ™t light up even after I replace the inverter board. A pinkish tone usually indicates a problem with the backlight lamp, not the inverter board.Д®ven though I suspected the backlight failure, I decided to test this laptop with a new inverter board just in case. The image wasnвЂ™t bright and it had a pinkish tone. When I was pressing on the button very fast, I was able to light up the screen but only for a fraction of a second. In my case the lid button worked properly, it didnвЂ™t stuck inside the case. The inverter board works as a power supply for the backlight lamp and if there is no power coming to the inverter board, the backlight lamp will not light up either. If the lid close switch is dirty, it might get stuck inside the laptop case and cut off the power from the inverter board. This button triggers the hibernation or sleep mode when the screen is closed. The lid switch is a small button located close to the LCD screen. If you have a similar problem, make sure the lid close witch moves freely. It means that the screen still gets data signal from the video card, but for some reason the backlight lamp doesnвЂ™t work.ДЇrom my experience I know that this problem can be related the lid close switch, faulty inverter board or bad backlight lamp. The laptop screen still works but the image is very very dull, you barely can see it. After that I took a closer look at the laptop LCD and noticed that the screen is not completely black.