x40 LCD issue, what can it be?

[aki]

Hi guys,

a friend of mine bought a second hand x40 and use it about 1month now. For few weeks ago, the X40's lcd turned very dark, almost black but he still can see the text a bit. This issue is random, it could be after few mins after boot or for 1-2hours....but it happens. once the lcd got dark/black, it stays there until reboot (if it helps at all).
(the screen is bright as usual until it gets "blackout")

I tried enter the bios and stayed there to see if the issue could relate to windows/drivers. But even in Bios, the screen got black too. So, i guess this is a hardware issue? VGA out works just fine

Any1 here had some issue? and solution?


cheers

[sjthinkpader]

Likely cause is the CCF backlight is at end of life. Could be the backlight inverter too at a lower likelihood.

[aki]

Likely cause is the CCF backlight is at end of life. Could be the backlight inverter too at a lower likelihood.

thanks. i saw this page and though maybe i should go for this because the symptom is similar:
http://www.laptoprepair101.com/laptop/2 ... -comments/

here is the symptoms that exactly as mine:

- Laptop boots as usual but after some time the screen blacks out. You still can see an image on the screen but it’s very dim. You might even use a flashlight to see it better. Sometimes the backlight comes back for a while but then goes off again. In some cases you can turn the backlight on if you tap rapidly on the lid close switch.
- The screen always stay black and the backlight never comes on but you still can make out an image on the LCD. It’s dark, but the image is still there.
-In some cases you might hear a buzzing noise coming from the area where the inverter board is located, it’s on the bottom part of the display assembly.


cheers