Is it possible to test laptop screen inverters with a regular multimeter? I was asking myself exactly the same question many times before until I found this article published by Morris Rosenthal. Apparently, you can test inverters with a multimeter but you have to have the right one, with frequency rated at least 50KHz.
If your laptop screen will not light up anymore and you are looking for a backlight lamp (CCFL) replacement, take a look at this site. I just found this website via Google and though it might be useful for you.
I hope you understand this warning.
Purchases of backlights are for professionals who now how to fit correctly, if fit by a novice the LCD panel may show lines or blocks of bad data, or hissing noise from badly soldered joints at the lamp connections. Warning high voltage is applied to the CCFL to create light inside the LCD housing.
This guide provides some additional information to my previous post about accessing and replacing laptop backlight lamp.
Warning! The backlight lamp is very fragile and can be easily damaged. In order to replace the backlight lamp, you’ll have to disassemble the LCD screen. It’s not easy. If you have no experience fixing laptops, do not open the screen!
The fourth step says:
Recent Comments