Identification of Logic board part (Picture attached)

Hi All,

I would really appreciate help identifying the part in the attached picture (Square component with "4.7 UH 1015BE" inscribed on it).

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Reasons and history below:

Symptoms: Computer will not power on. When Magsafe charger plugged in, light on L shaped connector is initially green, then shortly starts blinking between orange and green (still no power to notebook).

Suspected issue: Power circuit issue caused either by corrosion, a voltage fluctuation, or both combined.

Description:Recently the Macbook Pro of a friend suddenly shut off, and refused to start up again. The Apple store quoted an financially un-viable replacement of the logic board as the only solution, as it would be more logical to purchase a new mac. However they did indicate that it would be a power related issue (most likely a surge in voltage I presume).

I have successfully disassembled the mag safe charger (which does not seem to have any issue from an initial inspection) and then went on to remove the DC-in board and the logic board. The only issue I would spot was some corrosion on the component shown in the picture (to surface of the logic board). I want to find out the component, in order to determine whether this is the issue.

Further images- (sorry, bad quality. Phone camera!:( )

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Answered! View the answer I have this problem too

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What are the last three digits of the serial number? A slightly clearer and more focus image might help as well. Try to take a pic with less of an angle :-)

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Bit stuck on time, but will up load better picture asap. And the serial number is "1015 BE" I think. The first line says "4.7 UH" and the second says "1015 BE". Is that what you're referring to?

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The 4.7 UH sounds like a 4.7microhenry inductor.

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Oshan Fernando, what are the last three digits of your serial number and what processor speed do you have? This will help me to look at the right motherboard schematic

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So inductor it is then. I'll try to figure out whether this is the issue. Seems to make sense,because as far as I can see, the battery, the power adapter and the DC-in circuit seem to be functioning fine, in which case the blinking magsafe light can only mean a logic board, power related fault from what I can understand.

Oldturky, I know you can only give me an opinion, but on what I said so far, does a busted inductor sound about right?? Because its definitely corroded, and that's the only visible damage. Also, as soon as the charger is plugged in it remains green for a minute or so, then starts blinking. Again, I would really appreciate just an opinion.

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Chosen Solution

Oshan Ferando, with the help of the pictures (sort off;) and the logic board schematic, the part comes back as L7030 4.7UH-9.5A IHLP4040DZ-SM It is available at places like this and yes Mouser too. Hope this helps, good luck

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UPDATE

This is fuse F7040 check it as well. It is directly connected to the same circuit

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Thank you so much!:) *REALLY* appreciate it!:)

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Thank you for accepting my answer. Good luck to you.

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Call these guys : Mouser Electronics. They prob know. A search on there site pulled up This

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Thanks for that, but first I want to identify the part it make sure that is what is creating the issue. But really appreciate the link for when and if I need to get a part!:)

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Oshan Fernando will be eternally grateful.
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