Question about Sony VAIO PCG-K35 Notebook

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My laptop ( sony viao laptop) fell and now once turned on I have a black screen all lights and sounds are good. Could this be a led disconnect problem or a video card situation. What type of video card goes into a sony viao laptop model PCG-7K1l

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  • Sony Master
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Take a external monitor and hook it to the video output on the back of your laptop, if it works then you know the video graphics card is fine, it means that the lcd display is the problem. Now if the screen appears good, you may have bad inverter board, back light, cable from the video card to the screen has come off, or the circuit board on the back of the lcd is cracked. If there is no change on both screens this is a motherboard issue that contains the video graphics card.

Posted on Dec 30, 2010

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Unlikely to be a vga cable loose, but you can check by removing the switch panel cover and the screen to check it is still firmly housed.

test the laptop first in an external monitor, if you get an image, then the graphics chip is still ok

This then points to the screen, may appear undamaged, closer inspection with a torch, shone through the back of it will show any cracks you do not see straight away.

If the screen will not light up, fault is probably with a damaged backlight or inverter, you are then looking at a new (or 2nd hand) screen

Posted on Dec 30, 2010

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