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オリジナル投稿者: Jimmy ,

タイトル:

Backlight Non-Functioning after Water Spill

テキスト:

I'm trying to fix a MacBook Air 6,2 (13", Early 2014).  The previous owner spilled water on it, but immediately took it to a repair shop, where it was disassembled and dried.  As a result, the laptop doesn't appear to have any corrosion, and everything works but the backlight.  The LCD functions, so I can use the laptop as normal if I use a flashlight or headlamp to shine light on the screen.

I've done a bit of research, and it seems like this is pretty common after a water spill and happens because of a blown fuse which can be replaced ([https://www.ifixit.com/Answers/View/163536/LED+display+and+backlight+not+working|this seems to be the most successful thread]).

I have access to an electrical engineering lab (and EE friends), so I have all the tools I need to test and repair the MacBook.

Can someone tell me which componenets I need to test with a multimeter in order to diagnose which one is the problem?  Here are some pictures of the logic board:

[image|468336|align=left]

[image|468337|align=left]

[image|468338|align=left]

[image|468339|align=left]

デバイス:

MacBook Air 13" Early 2014

ステータス:

open