LFC#49 - Sony Vaio Backlight Repairs

CCFL backlights are increasingly rare now, but there are a couple of mid-life laptops still using them - and the Inverter power supply is prone to failure. Here's the diagnostic procedure!

[@projectsdontstop8441]

I was able to discover that my inverter went out thanks to your video.
Thanks!

[@leonscottkennedy4414]

thanks

[@Dreamz590]

It worked , pretty good solution

[@tbote]

I may have this problem. Did the laptop on video make a weird sound at startup aside from dim display? Not a beep noise.

[@descargamusicalny]

Nice video... what if half of my screen looks like is not lit, meaning the screen works but, half of it is darker... could it be the same problem?

[@haashkid4389]

sorry but I think tha mi inverter is in the motherboard what can I do

[@katiedfairy]

Hello, just wondering if you can use any Sony backlight inverter for a pretty ancient Sony vaio laptop? Don't think I can get one of the original backlights? Thank you.

[@katiedfairy]

Adamant IT Thanks very much for the reply, I think I'll just go down to a repair shop! Much too advanced for a technophobe like me! :)
Thanks again :)

[@anylove370]

My backlight has stopped working, but after taking the panel apart there was no visible inverter. Does this mean that it could be behind the black screen or should I replace the screen altogether ?

[@muhammedroshank625]

@@Adamant_IT I have a toshiba c655 LED with no backlight, tried checking the cables etc plugging in, cleaning no luck. What do you mean by mohterboard issue, Is it solvable ?

[@petarmaksimovic4048]

You need to break the plastic under the lcd to find out what kind of backlight it has? Seriously?

[@petarmaksimovic4048]

*****
Googling specs isn't kinda quicker?
Not using pwm led is all but nasty. The only thing that led revolutionized is the eye strain and headache.