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  1. #1
    Macbook air 1.6ghz power issues (component level)

    Member Since
    Apr 10, 2013
    Posts
    5
    Macbook air 1.6ghz power issues (component level)
    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!

  2. #2
    Macbook air 1.6ghz power issues (component level)

    Member Since
    Apr 10, 2013
    Posts
    5
    Allright, Can anybody recommend me a kind of technician/electronic forum where i might find an answer?

  3. #3
    Macbook air 1.6ghz power issues (component level)
    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,209
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '11 1.8 i7 4GB 10.10; 21" iMac '13 2.9 i5 8GB 10.10; 5s & 5c
    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.

  4. #4
    Macbook air 1.6ghz power issues (component level)

    Member Since
    Apr 10, 2013
    Posts
    5
    Thanks mate but i need deeper level then ifixit.

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

  5. #5
    Macbook air 1.6ghz power issues (component level)
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    45,269
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    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.....

  6. #6
    Macbook air 1.6ghz power issues (component level)

    Member Since
    Apr 10, 2013
    Posts
    5
    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.

  7. #7
    Macbook air 1.6ghz power issues (component level)
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    45,269
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    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.

  8. #8
    Macbook air 1.6ghz power issues (component level)

    Member Since
    Apr 24, 2009
    Location
    UK
    Posts
    602
    Specs:
    MacBook Pro 15" 2.8 GHz
    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
    UK

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