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Model A1312 / Mid 2010 / 3.2 GHz Core i3 or 2.8 & 3.6 GHz Core i5 or 2.93 GHz Core i7, ID iMac11,3

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not turn on the screen

not turn on the screen, I have full voltage, the hard drive works, the sound it makes when you turn the cpu is heard.

No lights turn on at all.

Where is the problem?

I appreciate your support.

regards

ricardo

Answered! View the answer I have this problem too

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Connect an external monitor - if you see no image there the problem most likely is your GPU/Video Card. If you see a normal image the problem is in the internal display chain. controller, back light, cable or the display itself.

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ricardo will be eternally grateful.
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