Model A1502 / 2.4, 2.6, or 2.8 GHz dual-core Intel processor / Released October 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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@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?

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

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Thanks for your time!

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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

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@defbyte please post us picture we can see

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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 will be eternally grateful.
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