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Modello A1502 con processore Intel dual core da 2,4, 2,6 o 2,8 GHz. Sul mercato dall'ottobre 2013.

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Burnt chip on back of logic board

Hey all,

My MacBook recently made a "pop" sound and instantly turned off. A small puff of smoke came out, and a bit of a burning smell. I decided to investigate, and found this chip on the back of the logic board had blown out. Funny thing is, I tried turning the mac back on once right after the incident happened, and it seemed to turn on just fine. Any ideas what this chip does, and if I will need to fully replace my board?

Images can be found here: http://imgur.com/a/KPaut

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- Thanks

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@partidor it is a bit hard to see on your image. It'll help if you can add an image a bit closer to the actual components. Right now it looks like the component that "popped" is C6432 which is a 100UF 6.3V 20% tantalum capacitor in a CASE-AL1 package. It is part of your audio amp circuit. This answer is of course just to identify the component, not to diagnose what caused it to shorten out.

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This is as close as my camera can focus, hope it helps: http://imgur.com/3MidvS0

Thanks for your feedback! Do you think I will still be able to use the logic board as is without other complications?

da

Definitely your cap. For as long as nothing else shortens out. Remember to not use the audio and get it fixed eventually.

da

Thanks for your time!

da

Hello, I think I had to same thing happen to me: popping sound, burnt smell, and shutdown. My machine restarted fine though.

I am hesitant to take my machine apart (I can never put them back together as they were)

Is there a way to tell if it was the same audio amp circuit without taking it apart? Like a diagnostic, or something else?

And can I continue to use the machine, just assuming I lost audio?

thanks for any and all help

da

@defbyte please post us picture we can see

da

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That is the speaker amplification circuit, and can be repaired. The part that is burned is a C6432. This would be considered an advanced repair and should you choose to have it done professionally you can expect to pay around $200 while a replacement board will run between $349 -$549

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Here is a video that will give you an idea of the repair process, while its not the same circuit it is the same process.

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Partidor sarà eternamente grato.
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