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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.
Here’s my previous post about replacing the backlight lamp in an IBM laptop. This post might be useful too.
I already mentioned it many times before and I’ll repeat it again. If the backlight on your laptop will not turn on (or it flickers and then goes off) but you still can see a very dim image on the screen, most likely this problem is not related to the backlight lamp. From my experience, in most cases this problem is cause by a faulty inverter board (FL inverter) – the board witch supplies power to the backlight lamp. It is much easier and cheaper to replace the inverter board then replacing the backlight lamp, so try it first.
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February 18th, 2008 at 9:38 pm
[...] Here’s what you can try: 1. Check the display close switch – a small button located close to the left hinge. Make sure this switch moves up and down without any problem, try tapping on the button. When the button gets stuck in the “closed” position, it cuts off power from the inverter board and the screen will be black. Tapping on the display close switch can help to turn the screen back on. 2. Try reseating connectors on the inverter board. [...]
May 1st, 2010 at 6:58 am
pls help i have a toshiba laptop Sat L350 the screen was broken , i need to replace the screen, i purchased one off ebay i check the spec, model etc: to get the correct one , when i fitted it and started the laptop i could not see the welcome menu, only see small about of the background, then i assumed it the inverter, so i purchased that one too off ebay , connected that to this time i got a hissing and static sound from the right hand side speaker , but i was still not able to view the icons on display… pls advice would could be the problem … PLS HELP