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2.26 or 2.4 GHz / White plastic unibody enclosure

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Black Screen but backlight works

Title really says it all. I also get the chime when I start it up and the backlight works. It does the same with different display. I also tried switching the hard disk but nothing seems to work. Any ideas? Thank you.

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1 Answer

Chosen Solution

Try an LCD cable. If it still has the same issue, and does the same thing with just the charger port, fan and screen plugged in, the problem will be logic board related (probably LVDS_IG_A_CLK circuit issue, usually L9080 burns out when the screen is messed with, so it sits on a black screen). What is the history of the device?

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I tried switching out different screen and it did the exact same thing. So I guess it’s the logic board. Luckily they’re pretty inexpensive online. I got it for like $80 like half a year ago and it worked fine until one day this happened. Anyways thanks for the advice.


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