Grandziol

Q: MacBook A1342 Won't turn on, the light blinks

Hello!

I Have problems with turning on my MacBook a1342. When I try to turn it on the light just blinks and that's all. I can't perform the SMC, however yesterday I just tried to turn it on reconnecting it to the power for some time and it actually turned on, worked for 10 mins and turned off. I'm thinking that there might be a problem with the MagSafe jack? My logicboard is faulty and it won't detect the battery so I've always run on the cable. Any thoughts ?

MacBook, OS X Yosemite (10.10.3)

Posted on Aug 26, 2016 9:10 AM

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Q: MacBook A1342 Won't turn on, the light blinks

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  • by K Shaffer,

    K Shaffer K Shaffer Aug 28, 2016 12:07 AM in response to Grandziol
    Level 6 (14,204 points)
    Desktops
    Aug 28, 2016 12:07 AM in response to Grandziol

    If your MacBook identifies with the following, you may be able to do some aspects

    of troubleshooting or repair DIY. As indicated by another user who posted twice, &

    you replied to one of those, the issue may reside in the need to replace the power

    circuit known as MagSafe Board (a DC-in Board) and in your model it can be done.

     

    • MacBook (13-inch, Mid 2010)

    Introduced    May 2010

    Discontinued    July 2011

    Model Identifier    MacBook7,1

    Model Number    A1342

    EMC    2395

    Order Number    MC516LL/A

     

    If you are a DIY person, to try replacement of this part, carefully, may resolve the issue

    OR it may simply prove the other more costly part may be required. Even if you bought

    a new Logic Board, this power board would be required; perhaps as separate purchase.

     

    An independent AASP would be most likely to repair this old of a unit. A diagnostic

    may be performed by an official Apple store with Genius, that may help troubleshoot.

     

     

    If you are not comfortable with the detailed takepart and reassembly to solve this issue

    an AASP may find when actually looking into the taken-apart MacBook, the power board

    could be the real problem. Sometimes, they can suggest 'worse-case scenario' just in case

    they take in a Mac and find once it is opened on the bench, a different part is to blame.

     

    • MacBook Unibody Model A1342 Repair Guide - iFixit:

    .. 2.26 or 2.4 GHz / White plastic unibody enclosure .. 

    https://www.ifixit.com/Device/MacBook_Unibody_Model_A1342

     

    Although most shops are honest, I've found a few that may go as far as saying the 'Logic

    Board is defective' - when a smaller adjacent circuit board, separate, is the problem. This

    may mean they are sloppy in diagnostic, or did not perform detailed diagnostic; and threw

    you a 'best guess' highest cost repair to see if you'd retreat or pay up. Like a car dealership.

     

    In the above guide, the 'MagSafe Board' details are in separate section; others are artfully shown.

    https://www.ifixit.com/Guide/MacBook+Unibody+Model+A1342+MagSafe+Board+Replaceme nt/1676

     

    Online, there are shops that specialize in repair of portable Mac computers and have almost

    every part made; they are also competitive in cost plus parts. Some will send you a box; &

    a few will do quite a bit for free, before giving you a Quote based on their takeapart finding.

     

    Sites such as powerbookmedic, wegenermedia, and others offer repairs; some offer fully

    repaired models (as they fix them for a living) and at various times, you may find one you

    like for about what the repair estimate given you by a local shop. My local shops cited huge

    markups over the cost estimate (and actual price paid by me) for repairs; it was only 30%

    of the full local cost to ship a Mac portable to wegenermedia for repair, including shipping.

    Since the entire computer was tested, they offered a limited guaranty on the whole machine.

     

    You can also buy known-good parts from pre-owned MacBooks, places such as

    powerbookmedic sometimes show more than one choice that matches your mac.

    And other dedicated repair shops can repair the actual logic board; wegenermedia

    can do that, among other reputable shops who've been in the trade many years.

    (Avoid used MagSafe Boards, + odd bits; unless as-new, cheap/working, or free.)

     

    So if the numbers don't add up, consider other options; if you need to have an older Mac to

    run older software, & have older peripherals to match, then no point in the upgrade/new path.

    Just avoid new iDevice temptation; since the sync to iOS will drive you to a new/er MacOS.

     

    In any event...

    Good luck & happy computing!