What are these mystery black SMDs?

Question

MacBook Pro 15" Unibody Early 2011

모델 A1286. 2011년 2월 출시 / 2.0, 2.2, 또는 2.3 GHz 쿼드-코어 Intel Core i7 프로세서

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cjjcooper @cjjcooper

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게시일: 2017년 4월 26일

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What are these mystery black SMDs?

My friend spilled wine on her laptop and a bit has managed to get onto the logic board. The only place that I can find where it has touched the board is directly on the SMDs circled in the link below, and maaaaybe a teensy bit on the cluster of circuits next to them. I've given the entire board an isopropyl alcohol bath and scrubbed all the corrosion off, rinsed with distilled water and one more alcohol bath before letting dry in a dehydrator. In the event that it still doesn't power up, does anyone know where I would be able to find these SMDs online, or what they even are? There are no markings except for "68 C15" printed on the top.

http://imgur.com/a/ryT7O

Thanks!

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예 아니요

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Should also mention that the laptop is an early 2011 macbook pro 15"

cjjcooper 의 2017년 4월 26일

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arbaman @arbaman

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Those bigger shorted components are both capacitors and could be found online at various components sellers such as Mouser, Farnell or Digikey. Would need a wider angle picture to help you identify them exactly.

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예 아니요

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No problem! Here is a wider photo

http://imgur.com/a/g7fqW

cjjcooper 의 2017년 4월 26일

These two are both capacitors, 68µF ±20% Molded Tantalum Polymer Capacitor 16V, 50 mOhm in a D2E-SM Case.

Just copy+paste and you'll easily get them.

arbaman 의 2017년 4월 26일

thanks so much!

cjjcooper 의 2017년 4월 26일

No problem, good luck with your repair, hope you succeed to get it back to full working order.

arbaman 의 2017년 4월 26일

One more question since you seem to know a lot about the individual components ..do you know what that black chip is directly to the right of those two capacitors, and in your opinion, do you think that would need to be replaced as well? Looking back at the picture, it looks like some electrolytic fluid managed to touch that part..

cjjcooper 의 2017년 4월 27일

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Should also mention that the laptop is an early 2011 macbook pro 15" — cjjcooper
These two are both capacitors, 68µF ±20% Molded Tantalum Polymer Capacitor 16V, 50 mOhm in a D2E-SM Case.

Just copy+paste and you'll easily get them. — arbaman
No problem, good luck with your repair, hope you succeed to get it back to full working order. — arbaman
One more question since you seem to know a lot about the individual components ..do you know what that black chip is directly to the right of those two capacitors, and in your opinion, do you think that would need to be replaced as well? Looking back at the picture, it looks like some electrolytic fluid managed to touch that part.. — cjjcooper

MacBook Pro 15" Unibody Early 2011

What are these mystery black SMDs?

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