Logic Board, water damage part identification help

I have been fixing up old MacBooks/MacBook Pros lately and I have a MacBook Unibody A1342 unibody that had coffee spilled on it. I have meticulously cleaned the computer, but there is a very specific spot on the back of the logic board that is damaged. I have been having a devil of a time identifying what goes where the damage is. The first images is of the full mobo. I have made the image negative, except for the region where the damage is.

Block Image

The second is a close up of where the damage is.

Block Image

I believe one of those little pieces that bridge wires and is soldered on the end goes there, but what are those things and is it possible to fix? Keep in mind this is me messing with something that was giving to me, not bought and 100% destruction of the mobo means nothing to me.


PS-I know some guys in my university's physics dept. that can do some awesome soldering. And for those interested the photos were taken with a Canon 60D and the close up used an extension tube for cheap macro.

Thanks All,

Mr. Doldrum

I can't figure out how to put in a photo anywhere else, so I am adding the photo of the fixed mobo here.

Block Image

已回答! View the answer 我也有这个问题


按维修分数 0

所有超过US$100.00或包含 Pro Tech工具包的订单免费送货!


Ever fixed something? That’s Genius.

Share your repair story with #ImAGenius

We Are All Geniuses

Share your repair story with #ImAGenius



mrdoldrum, the missing part is reference designator C7270 which is a 10UF 6.3V 20% capacitor in a 603 package. Anyone of these should work for you. Hope this helps, good luck.

Block Image


按维修分数 0


Thank you very much! It has been driving me crazy to find out what that was. Any time I looked up info for what things are on a motherboard I only found good resources on the "top" side of the board.

Do you have any suggestions on places where I can get more info, general info, on motherboard components?

Anyway, thanks again!

Mr. Doldrum

The schematics for some of the older logic boards are available on forums from Russia and Poland. It does help to scour those.Google does not always provide a good search. I use Duckduckgo as well an eastern European IP. Thank you for accepting my answer.

Just thought I would give you an update oldturkey03; bought the capacitor from one of the companies in the link you provided. I soldered it to the MOBO (still need a new HD bracket and sata connector), but with the machine plugged in it did turn on and boot into a window with a folder. Looks like I have a free MacBook. I've attached a photo of my fix. It is a pretty job—pretty ugly soldering job that is, but hey, it works. Thanks a bunch for the quick response and the link to the product itself.


Thank you for letting us know. Not a bad repair:-)



mrdoldrum 将永远感激不已

过去的24小时: 0

过去的7天: 0

过去的30天: 0

总计 183