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No Display backlight on the 2010 MBP 15. Options?

Hi!

I got this computer from a friend and he claims the backlight doesn't work. I tested this out to be true by

1) Booting the computer to external display. Works alright

2) Shining a light to the display shows stuff = Data is sent to the display, but backlight doesn't work

I tried cleaning LVDS cable connector on the board and LVDS cable itself but to no avail.

So what could I do? I'm guessing that the LVDS cable could be at fault but also the backlight controller on the board, but I can't for the life of me locate it or find some info on the internet. I could only find where's it's located on the 2009,2011 and 2012 computers but not on the 2010 ones

Here's a picture of the board

By the way. The guy is a heavy smoker, and I found a lot of yellow and orange dust inside the fans. It could also damage the components, maybe

Block Image

Thanks for any help!

Ответ на этот вопрос У меня та же проблема

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What number is your logic board? Should be starting with 820-xxxx and be on the board itself. You will also have post images of both sides of the board.

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Marhowl, I'd start by checking the fuse for continuity. Let us know what you find

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I got to get my hands on some multimeter, since I don't have one.

In any case, thanks for showing me the location.

Could it be this component? http://www.ti.com/product/LP8550/datashe...

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Yes it could be. I will get you the proper info in a few hrs. did you get the numbers I requested in the comments? that way I can make sure it is exactly what you need.

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I have found this number on the LB

Apple 2010 820-2850-A

Do you still wan't the pictures? I have found the piece to be called LP8545SQ from Texas instruments btw =)

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No images needed unless you need to further identify any components,. The LED driver is indeed a LP8545SQX. Great job...

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Alright. So what now? Should I check for continuity on the components and get back to you? Could take a while. I'm a newbie without multimeter =/

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Marhowl будет вечно благодарен.
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