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Model A1418 / Late 2013 / 2.7 & 2.9 GHz Core i5 or 3.1 GHz Core i7 Processor

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LCD screen blank - but external monitor is working

I have spent some time on your site, and found similar problems I experience. My iMac screen is black to the naked eye, when plugging in a external monitor it works, and shining a flashligh on the screen reveals that my screen is still working, so my guess is the LED driver portion of the main board is faulty, is there anyway I can fix this?

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It sounds like the backlight went out. I usually recommend screen replacement unless you have incredible micro soldering skills. You may have to purchase a damaged unit and use the screen off of it or purchase a new screen. Looks like a new screen is under $200 HERE

And HERE is how to replace the screen

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Yes, in my experience it is the backlight.


"unless you have incredible micro soldering skills" - is there a component / fuse I can replace on the main board to make this work, from what I can see on other sources and this one, it is mainly a fuse on the main board that needs replacement, I will be more than happy to try and fix it , my soldering skills are not too bad :)


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Arno Janse van Rensburg will be eternally grateful.
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