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Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

Macbook air 1.6ghz power issues (component level)


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davis1

 
Member Since: Apr 10, 2013
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Hi guys!
I have this MBA 1,6 A1237 which is dead at the moment and i need some help on a component level.
When i press the power-button nothing obviously happens, though the button is functioning and the Logicboard get the signal, I can say that cause i am able to reset the smc by shift+ctrl+alt+cmd and power.
The only way i get the machine to power up is by short circuiting (see picture here)the 4th and the 2nd jumpers on the topcase when the IPD Board Flex Cable is connected, the machine starts, i get POST and all but when i release those jumpers it shutdown immediately.
I just wonder if anyone here have experienced that and found a fix.
I do have other boards laying here that i can pull out components from.
Btw..I did disconnected any cables that might be short circuiting and it seems to be on board, component issue.

Thanks in advanced!
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davis1

 
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Allright, Can anybody recommend me a kind of technician/electronic forum where i might find an answer?
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bobtomay

 
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You might try at iFixit

I cannot be held responsible for the things that come out of my mouth.
In the Windows world, most everything folks don't understand is called a virus.
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davis1

 
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Thanks mate but i need deeper level then ifixit.

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Originally Posted by bobtomay View Post
You might try at iFixit
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chscag

 
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Quote:
Originally Posted by davis1 View Post
Thanks mate but i need deeper level then ifixit.
You can't get any deeper level than ifixit if you wish to do the repairs yourself. Otherwise you'll need to take your Air to an experienced Apple repair tech. It's up to you.....
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davis1

 
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Quote:
Originally Posted by chscag View Post
You can't get any deeper level than ifixit if you wish to do the repairs yourself. Otherwise you'll need to take your Air to an experienced Apple repair tech. It's up to you.....
Well I am actually experienced Apple technician and can troubleshoot and replace any part in any mac, but I don't have enough experience with troubleshooting and repairing Logicboards on the component level and I mean not just exchange them for a new logicboard, thats the easy part..
I need to locate the faulty component in the logicboard and replace it with a new one so the defective board is up and running again.
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chscag

 
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The problem is that Apple does not release their diagnostic software to the general public nor do they offer service manuals. Unless you can get hold of a service manual and have the right soldering equipment, it may be difficult to do component level repair on the logic board.
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techiesteve

 
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Apple look after their schematics and component level repair info with more security than the CIA. Faulty boards are eventually repaired in batches at a contractor using ATE. Additionally, you'll find Apple make use of some custom IC's. The only repairs possible on some boards are replacing the BGA graphics chips, then you need to be kitted up with the right equipment.

Steve Bell
UK
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