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Laptop LCD goes out


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#1 tlrmelton

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Posted 15 January 2013 - 02:00 PM

Hi, I work in a PC repair shop and this is the 2nd time I've had this same problem this week. When the laptop shuts down or hibernates the screen doesn't always come back on upon power up. When the screen is out I still get picture on an external monitor, and Windows doesn't list the laptop LCD as even existing. So I know the screen isn't coming on at all. On one of the laptops I replaced the LVDS cable and still had the same problem. I, therefore, do believe it's the screen that is having problems. I've checked all the connections and then checked them again and they are solid. I suppose I'm just looking for reassurance that the problem lies in the LCD electronics and that there isn't some electrical problem on the motherboard. I'd appreciate any input, as restocking fees aren't very fun. Thanks.

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#2 coxchris

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Posted 15 January 2013 - 08:10 PM

One or two things

Either the LCD assembly is damage or the back-light is dead. You can be assure that the video card is working because its displaying fine.

Hibernation requires free space and ram but I think its a problem with the assembly and or the backlight

Edited by coxchris, 15 January 2013 - 11:30 PM.

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