my screen has got diagonal pixellated patterns
The screen on my iMac has stopped working and I do not get an Apple logo unless I start it up in safe mode. If I do it has diagonal pixellated patterns which make it impossible to see anything. In normal start up mode there is just a strange pattern and the pointer becomes some lines of text.
I am told that it must be the logic board. Is it possible to get a replacement? Does anyone know where?
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