Having problems with your Sony VAIO VGN-NS190J/S Notebook PC ?

VERY Dim screen after a drop

\015 I dropped my laptop (about 3 feet onto asphalt). Now the screen only comes on very dimly. There are no cracks or other cosmetic damage to the screen itself. I have taken apart the body, and all the wiring seems fine. Should I take it to a pro to see if the screen could be fixed? Or is the screen dead for sure and I should just replace it?\015

Answers :

Have you tested it with an external monitor?\012

I would say you either have a damaged inverter board or screen baclight lamp. Usually the inverter board fails in one of the following ways:

1. When you turn on the laptop, the screen lights up for a short period of time and then goes dark. You still can see an image but it is very dark, almost invisible and definitely not usable. When you restart the laptop, the screen lights up and then goes dark again. The laptop works fine with an external monitor.
2. Your laptop turns on but the screen remains dark all the time. You still can see a very dim image outline. The laptop works fine with an external monitor.
3. The laptop screen works fine for hours or even days, but sometimes it goes very dark as it mentioned above. When you restart the laptop, the screen works fine again.

Inverter failure symptoms are very similar to backlight lamp failure symptoms and in most cases you cannot tell which one is causing the problem until you replace either the inverter board or the backlight lamp. From my personal experience, inverter boards fail more often than backlight lamps. If you have to guess, replace the inverter first.
Check brightness controls in the control panel screen. You may have damaged the LCD sreen
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