Model A1286. Released February 2011 / 2.0, 2.2, or 2.3 GHz Quad-core Intel Core i7 Processor

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MacBook Pro 15" Display issue

I had the same issue on my Macbook Pro 15" late 2011 " the display show pattern in color red is more and I test with external monitor it work fine no pattern. what this course by VGA Card on Logic Board or LCD Display?

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Since the external monitor is ok you have an onboard video chain problem (not VGU/VGC logic board). I suspect the LCD is bad.

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I agree to machead3 - I doubt this is caused by the internal LVDS cable from the logic board to the LCD panel; you can check this by moving the LCD panel while the red pattern is visible.

But it sounds more like the LCD itself is faulty.

Regards, Stone

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