Released June 2012, Model A1278. Intel processor with Turbo Boost, Up to 512 MB DDR5 Video RAM

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Inverter Cable & Inverter Board Location

I just replaced LCD Screen on my MBP. But after I replaced it and reassemble everything, it appears that the backlight doesn't work. I have to point a flashlight at the screen to see. So I think it might have something to do with my inverter cable or inverter itself.

Would someone please tell me where they are so I can proceed on fixing my MBP?

Thank you so much for your time!

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You should have a LED-backlit TFT active-matrix "glossy" display (not an LCD) - which means the controller chip or connector on the logic board is bad. Try an SMC reset.

I would talk with your vendor about why the displays backlight is not working.... examine the cable and connector for burn marks/poor connection.

If you have not connected to an external display do so. If you see no image there you have a bad VGU/VGC or logic board issue. Of course a good image points back to an internal display link problem which is controller chip, connector, cable or LCD screen.

If this Answer is helpful please remember to return and mark it Accepted.

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Dude, stop copying and pasting! If you don't have the clue, or haven't dealt with just stop talking in increments. It's so annoying when mammals step in with minimum familiarity. People are searching for help and good advice, not for your poppycock.

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Inverter Cable & Inverter Board Location

My MacBook Pro turns on, but has a black screen..

https://discussions.apple.com/thread/402...

https://discussions.apple.com/message/30...

iBook screen switches off/goes black when opened more than 45 degrees

screen backlight not working on MacBook Pro

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