In this post i explain how i test the inverter board in a laptop. the inverter failure is very similar to the backlight lamp failure. in both cases the screen gets very dark and the image becomes very faint, barely visible under a bright light.. Taking a logical approach to troubleshooting laptop display failures can save you time and money. many people purchase expensive lcd replacements when the problem is a $20 inverter, the part that. Here’s another laptop with backlight failure. if you see a very dim image of the desktop, most likely this is the inverter or lcd screen backlight failure. i would try replacing the inverter board first. how do i get the lcd hinges removed, or lcd removed from hinges..
Computer consultant morris rosenthal says in his ebook "the laptop repair workbook" that the simplest method of diagnosing an inverter problem is to connect an external crt -- cathode ray tube -- monitor to your laptop. if the display appears normally on a crt, your laptop inverter is malfunctioning.. Hardware failure – lcd, inverter, cable or backlight. symptoms: the laptop appears to start as usual but the screen is black, if you move it, it turns on and works properly. failed cable. the laptop appears to start as usual but the screen is very dark, although it changes colour a little and you can see a very feint image.. Inverter failure usually results in the dimming of images on the screen to the point where the backlight is not even on (the inverter provides power to the backlight) this sounds more like it is a failure in the lcd panel itself, though it could just as easily be a loose data cable connected to the back of the lcd..
