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Model A1312 / Mid 2011 / 2.7 & 3.1 GHz Core i5 or 3.4 GHz Core i7 Processor, ID iMac12,2

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LCD Controller Board Part Number?

Hello I have currently purchased a 2011 Logic Board to Replace my Late 2009 Board. I have found that there are a few things that are a little bit different. Currently i am in the process of getting a new controller board for my LCD Display due to the smaller connection the 2011 board has. So currently the 2009 Part Number for the controller board is 6870C-0301A_EVT2_Rev1,0. I am in kneed of finding what part number i need for the 2011 27" board. Does any one know where to find the correct part number?

thanks in advance.

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Ok sorry guys I think this might be confusing, the board I am talking about goes on the back of the 27" LCD Screen LM270wQ1. It is what connects the LCD Screen to the iMac's Logic Board. Currently the 2009 model is a SDA2 version "Part Number shown above" . With a little internet searching I am pretty sure what i need is the SDE3 version of the control board. The part number for that board i do not have. I have found that the only difference is the LCD Connection that goes on the back of the iMac Logic board is smaller than the A2 and some what different, and if i can just find the E3 Board i can swap them out. Also I do not know if the E2 version is the same as the E3 or not, because i have found some E2 boards on Ebay but I am unable to find the E3 boards anywhere on ebay just he LCD Screen.


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@tinkerman to clarify your 2009 panel is a LM270wQ1(SDA2) and the one you need is a (LM270WQ1(SD)(E3)). You want to use the controller for the (LM270WQ1(SD)(E3)) to drive the LM270wQ1(SDA2) panel. I'd start off by checking the datasheets for both panels to see if those connections (not connectors) are even compatible. Here are the datasheets LM270wQ1(SDA2)(LM270WQ1(SD)(E3))

If you cannot find the board for the panel I'd suggest that you consider building yourself an adapter since you now have the pinouts and know which connection goes where.

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I have never gone that far with this but sounds interesting thought i might give it a go. Thanks


I found a (SD)(E2) I cant seam to pull the data sheets on those. The picture I get on ebay looks like a possible match to the E3 but i am not sure on the LCD CN1 , or the CN7 Connection. would you be able to tell me if it is a match with the E3

The CN1 for the E3 is a 20525-030E-01 (I-Pex)

The CN7 for the E3 is a 53780-8608 (Molex)


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Tdog zal eeuwig dankbaar zijn.

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