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The Alienware M14x is a laptop designed for optimum gaming experience and content.

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Testing for bad display connector on motherboard~

So, a while back the hinges on my laptop broke. I ignored the problem and kept it open to not disturb any of the wires bridging the hinges. Long story short, the LCD finally hit the dust (damage to some of the ribbon cables and WiFi wires).

I ordered an entire 1600x900 factory replacement monitor (casing, webcam, LCD, etc) and took 'er apart and plugged it up, but there is nothing posting to the new monitor. note: the laptop WILL output both HDMI and rbg to an external monitor.

Anyways, as far as I can tell and multiple passovers, there is nothing damaged on the board. I've taken it apart and checked multiple times to the best of my ability, reseating the LCD connection to the motherboard and internally on the new display..

Now I know, it's possible that the new unit is faulty, but for some reason I want to believe it's more likely not than is.

So guys, what do? Is there any way I can test the power coming from the 40 pins on the mother and make sure it isn't goof'd somehow? Are there diagram showing the voltages coming from each pin and how would I go about testing that? Any help would be appreciated.

Edit : I have tested for backlight issue with a flashlight

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Hi @alecdent ,

When you say nothing to the new LCD panel, have you checked for an image by shining a torch at an angle close to the screen to see if you can detect an image at all?

It will be very faint but if it is detectable, then you have a backlight problem and the video is OK.

Maybe nothing but does the new panel have the same "part" number printed on the back as the old panel?

par

@jayeff Of course! I forgot to mention that, Ive shown up and down the entirety of it and saw absolutely nothing.

par

Did you replace the video cable? Since this problem started with a bad hinge then that can damage the video cable.

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@DrGlowire Of course, the new monitor assembly included the entire video cable. The stuff isn't flimsy like other cables I've seen

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@alecdent chances are slim but there might be a schematic. We need to get every identifier that is on your motherboard. It's best to post some good' pictures of your board with your question. Use this guide Ajout d'images à une question existante for that. There will be no voltages listed on the schematic per se, but it might give you an idea of where to check. It is possible that your board received some damage when your cables shorted out originally but I am with @jayeff on this and would check the panel again.

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Alec Dent sera éternellement reconnaissant.
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