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Released October 24, 2011 / 2.2, 2.4, or 2.5 GHz Quad-core Intel Core i7 Processor

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Backlight works briefly then goes out.

I was wondering exactly where on my logic board the inverter is. I have been testing things with my multimeter and there's been no luck in finding anything wrong. I don't know what to do and a new logic board is kind of expensive. Perhaps I could repair a connection or solder on a new part.

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Most Helpful Answer

This model does not use an inverter. To help narrow the problem, hook it up to an external monitor and see if it is going out also. Let us know your results.

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