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Modell A1418 / Ende 2012 / 2,7 & 2,9 GHz Core i5 oder 3,1 GHz Core i7 Prozessor

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Can anyone please help me identify the component in the picture?

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My board is missing this component and the backlight is dark. I hope this is the problem!

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Hi, your best bet is to find the schematics for this mac. What year and model is this mac and i might be able to help?


The device is always listed to the right of the question. in this case, the device is a iMac Intel 21.5" EMC 2544 (iMac Intel 21.5" EMC 2544 Repair)


ok, i now have the boardview but now need to know what part of the board i need to look at. Please send a picture of the board and circle what part you are looking for.


ok, after doing some final looking. i have determined that the missing part you are describing is a 250 ohm resistor named as L9100 on the schematics and boardview


Cwoodyard a designator starting with "L" is never a resistor. Inductors carry the "L" descriptor.


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J.R. Asprelli  that is reference designator L9100 which is a 250ohm ferrite bead. You can get the package size by measuring the distance from one point to the other.

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Yes, you will need this to get your display to work. There should only be 12 Volt on that rail, so make sure you have no short anywhere else.

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J.R. Asprelli wird auf ewig dankbar sein.
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