Macbook Air 2013 Backlight Fix?

[DeafMenter]

Please keep in mind guys...this is almost a 1.5 year old thread. Not very likely the OP is still checking the thread to reply to questions...and they probably have either fixed the problem by now or purchased another computer.

- Nick

I don't really understand why forums always want to close threads when the threads are indexed in google search results. It's bad for the forum to have links to good questions but no way for anyone to provide any input further down the road. I'm sure OP is no longer checking the thread but other people will inevitably stumble upon these indexed links and hopefully they'll find what they're looking for.

This thread was very suspenseful for me to read. The OP walked right past the idea of the fuse and then danced back around to the idea of the fuse but ultimately gave up short of fixing it. If the display cable had already been replaced and it didn't resolve the issue then it was most certainly just a burnt out backlight fuse, a very simple repair.

In most most cases you would be fine with removing the fuse from the board and applying a small amount of solder between the contacts to bridge the connection. This basically bypasses the fuse and allows the light to function so that it can illuminate the display. You would want to immediately order a replacement fuse and solder it in place before anyone goes spilling more liquid on the computer or the display itself might not be so lucky the second time around.

I hope he ultimately found the answer or was led there by someone else because that display was fully functional and would've been worth at least $300-$400. It would be pretty crappy to have let that get thrown away.

If anyone finds themselves in a similar situation in the future:

1) - Check the pins on the display connector on the board - the first 2/3 are responsible for controlling the backlight
2) - Check the contacts on the display cable for any burnt out contacts
3) - Check the fuse for continuity

Replace any of the above if any of them are flawed in any way.

 

[MacInWin]

Welcome to the forum, DeafMenter. The thread isn't closed, you posted to it and I posted to it. It's now getting very old, though. Threads here only get closed when they go so far off track or start to get into a flame war. Zombie threads appear all the time, just as you made this one appear again. So "forums always want to close threads" isn't true here.