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Why is the screen on my MacBook Pro randomly going dark

I have a MacBook Pro Retina, 15-inch, Late 2013. When I’m using it, sometimes the screen randomly goes dark for a few seconds to up to 30 seconds. The computer is still running (keys remain illuminated). I can’t really tell what makes the screen come back to life…sometimes I hit random keys and it comes back, sometimes it just comes back. Any ideas on how to troubleshoot this? Thank you

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Do you tend to use a spray cleaner on your display? With COVID I'm seeing a lot of screen failures do to liquid damage! What happens is the spray drips down the display to the bottom and there it wets the logic under the bezel. The connector gets corroded so the backlight power doesn’t get though.

You may be able to save your display but its a delicate operation! You may want to find someone with the needed skills and tools to do this repair.

Here’s a good view of things in this teardown MacBook Pro Retina Display Teardown. Jump down to Step 5 here’s a blowup of the connector in question on the T-CON board.

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Which then transfers power the backlight via the display cable which is seen in Step 8 middle image

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Either or both may be damaged

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I’ve done it a few times over the past 5 years that I’ve had it, but I don’t spray it on the screen. Usually, I dampen a paper towel.

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Let's look at the main logic board display connector for corrosion then which is the only other place which tends to get wet. Follow this guide Remplacement de l'écran complet du MacBook Pro 15" Retina fin 2013 to Step 11. Take a nice tight picture similar to the 3rd image so we can see the connectors solder joints and the cables tang for damage and post it here for us to see Ajout d'images à une question existante. If that doesn't offer a clue then its time to replace the display cable which is a bit of work.

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Amy sera éternellement reconnaissant.
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