Model A1419 / Late 2013 / 3.2 & 3.4 GHz Core i5 or 3.5 GHz Core i7 Processor

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Does this mean graphic card faulty?

My iMac screen corrupted after wake up from sleep mode. Does this mean I need to replace the graphic card / logic board?

Tried SMC reset, PRAM reset... no luck...

Picture of the screen:

Block Image

http://tinypic.com/r/2ni9vm1/8

Answer this question I have this problem too

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Actually, that looks like a bad LCD.

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Connect your mac to external LCD. If there are some stripes like on your original one, then its the graphic card and it needs reballing. If there isnt any stripes on external screen than its your LCD.

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Actually it's the bad LCD panel, sent to repair and cost me a lot....

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Comments:

Bad news :(

Good luck in future

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Zhen Jin will be eternally grateful.
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