Blank/black screen output after fiddling

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Preben Ver Eecke

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May 17, 2014
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Goodevening to you all.

I've ran against somewhat an annoying problem.

I got the task to fix a laptop screen which was malfunctioning. At first the problem was plain simple, every time he closed or was near closing the laptop, the screen dimmed. So I immediately thought that the ribbon cable was loose.

The problem persisted after fiddling with it. I took the backcover off so I could get a clear view of the ribbon cable attached to the motherboard and nothing seemed wrong, after fiddling some more I suddenly got a continous black screen.

I assumed I broke the ribbon cable, but here's the weird part: I tried to use VGA and HDMI output and I still get a black/blank screen.

I hope you guys can help me out

Sincere regards


Preben
 
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