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Mid 2009 Model A1278 / 2.26 or 2.53 GHz Core 2 Duo processor EMC 2326

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**Missing components on logic Board** need help please!

I bought a Macbook Pro 13 inch wich isn't charging and the green Led does not turn on as well. I'm not sure which model it is, on the logic board it says EMC No: 2326. It has a 2.26/3M/1066 Processor and Thunderbolt as well

After taking it apart i noticed that there are components (i think resistors?) missing on the logic board. Is there somebody who can help me identify these?

I added two pictures so you maybe somebody could look up in the scematics

Sorry my english is not the best but i hope somebody can understand me :-)

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EDIT: I just found this in the main case, near the area. The other one is still missing

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EDIT: MISSING PARTS FOUND!!

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Отвечено! Посмотреть ответ У меня та же проблема

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@swarl3s Don't worry about your language issues! it's fine!

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Parts found:

The big one is a 2.2uF 100V capacitor for the lcd backlight. The other one is a 2.0k ohm pull up resistor for the smc<>charger circuit data line.

Thanks to TCRS Circuit & oldturkey03!

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Those are capacitors for backlight. You dont need a new board just find someone who does board repair

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@tcrs_circuit thanks for your help! I don't think that these parts are just for the backlight. Cause the macbook does not turn on at all, it's not even charging.. I heard something about the one wire circuit wich could be part of the problem? Maybe you know more about that?

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The big capacitor is for back light. No green light not charging is another issue and may be that smaller component that is knocked off but may also be an issue with the charge controller

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@tcrs_circuit The smaller component seems to be a 2.0k ohm pull up resistor for the smc<>charger data line. Thats why there is no green/red light on the charging port! I added two picures

I ordered these parts online and hope they will solve my problem

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yea r6929 is a 2.0k resistor 402 package

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@swarl3s just to reiterate what @tcrs_circuit has already mentioned. The part that is missing from your board is reference designator C9799 which is a 2.2UF 100V 10% capacitor in a 1210 package. It is part of your backlight circuit.

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The issues you are describing are not related to that capacitor.

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@oldturkey03 thanks for your help! Seems like the other, smaller, component missing is the 2.0k ohm pull up resistor for the smc<>charger data line. I ordered a new one online, hoping it will solve my problem. I added two picture

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MacBook Pro 13" Unibody (Mid 2009) 2.26 GHz Logic Board

MacBook Pro 13" Unibody (Mid 2009) 2.26 GHz Logic Board Изображение

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MacBook Pro 13" Unibody (Mid 2009) 2.26 GHz Logic Board

$99.99

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@mayer thanks for your reply.

Well i hoped that somebody could tell me the exact part number of these two missing resistors. A new logic board would be an easy solution, but the most expensive as well!

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