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Power comes on but screen stays black. - LG 42LE7300 Infinia 42 Edge-Lit Led Hdtv - 1080p 1920x Dynamic 2

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Power comes on but the screen stay`s black dose it have a screen lock or stand by


Black screens can be caused by many things the first bit of video runs through the ram, so try changing the ram or swaping it. the next thing that causes a black screen is the LCD Inverter or the back light bulb to test this is take a flash light and shine it on the screen at an angle and see of you can make any faint images out. Next dis-assemble the laptop and see if the processor is heating up or staying cool.

Hope this helps!

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"Most" newer monitors will let you know if the are no longer receiving a signal. Sounds like the backlight is burnt out. Try getting a bright (LED works best) flashlight and shining it at the screen at all angles to see if you can see any of what you were doing. If the backlight is on the fritz, either return it on warranty or buy a new one.

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It sounds like video card problem. Bring it to a repair shop.

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