Laptop Screen is very dim & vga output is working

[MTOPALOGLU]

my laptop screen very dark, but i can see some text & images on the screen. VGA output is working. i bought a new screen. new&old lcd screen is working on another laptop. i need Help for my problem. "sorry for bad English translation"

 

[girogalllas]

Faulty inverter probably. or backlight.

 

[Poprin]

I'm not sure on your model or anything but it sounds like the screen inverter. Your LCD should connect to a small cable which goes via a small circuit board before going into the motherboard. For example on my Dell it's attached just under the LCD screen on the lid. Try googling laptop LCD inverter for a possibly better description!

 

[MTOPALOGLU]

I replace the screen. I think its not inverter or florasan problem. maybe cable or motherboard problem? But i could not find lcd cable any where.

laptop model : fujitsu siemens lifebook ah530

 

[jarotech]

Hi, can you check a voltage, do you have a multimeter ?

 

[Dazzler22]

did you find an answer to this? I have the exact same issue, a Lifebook AH530, screen was dim with no backlight, replaced the screen with a new one and i have the same issue still,

wondering what next to check, this is an LCD screen so it does not have an inverter....

Any ideas?

 

[Poprin]

What makes you say that your LCD screen does not have an inverter??

http://dbick.com/Fujitsu/Laptop-Inverter-For-Fujitsu-Lifebook-AH530-AH530-1B.html

 

[car1jones]

Maybe a shot in dark but I have had this a few times with different laptops
Try cleaning out where the lid latches go into on the palmrest if this is the correct model - they fill with dust and it can make the laptop think that the lid is closed - automatically dimming the screen

Like I say shot in the dark but has worked for me a few times

Failing that change the invertor or the screen cable