Model A1286. Released February 2011 / 2.0, 2.2, or 2.3 GHz Quad-core Intel Core i7 Processor

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How to repair the display connector on logic board

Hello

here is how the story goes.

I spilled tea on my mac, its a 15 inch unibody with following specifications: 2.2 GHz intel core i 7, memory: 4GB 1333MHz DDR3, graphics: amd radeon hd 6750M 1024M. OS 10.7.4 .

In the process of drying it and cleaning any residue i opened the system. The logic board was clean however the key board had stains which i cleaned from inside after removing the logic board and underneath the keys after removing the keys individually. In the process somehow i think?? i damaged the DISPLAY CABLE IN THE PROCESS ALONG WITH THE CONNECTOR ON THE LOGIC BOARD?. TWO PINS ON THE POWER PORT SIDE OF THE DISPLAY CABLE WERE BENT SOMEHOW AND WHEN I LOOKED USING HIGH MAGNIFICATION INTO THE PORT ON THE LOGIC BOARD INTO WHICH THE CABLE CONNECTS I FOUND ONE PIN LOOSE AND TWO BENT SOMEWHAT TOWARDS THE POWER PORT SIDE IE SAME SIDE AS THE BENT DISPLAY CABLE PINS. I STRAIGHTENED THE PINS AND HOOKED UP AS IS BUT THE LCD WENT BLACK AND DEAD. I AM USING THE MAC ON AN EXTERNAL MONITOR AND IT WORKS FINE. THE VIDEO CAMERA ON LCD IS ALSO WORKING ON EXTERNAL MONITOR. SOMETIMES WHEN I REMOVE THE CABLE FROM THE EXTERNAL MONITOR WITH THE LAPTOP STILL ON, THE MAC SCREEN LIGHTS ALL UP IN PINK WITH A 2CM WHITE HORIZONTAL BAND RUNNING ALL ACROSS THE LCD IN THE LOWER THIRD AND A SIMILAR SOMEWHAT OBLIQUE WHITE STROKE ON TOP OF THIS LINE, TO MY RIGHT PARTIALLY ON THE SCREEN. THE APPLE LOGO ON THE LID ALSO LIGHTS UP WITH IT.

NEED TO KNOW

1: IF MY DIAGNOSIS IS CORRECT.

2: WHICH IS THE BEST SITE TO BUY LOGIC BOARD ON LINE FOR MY DEVICE .

3:ANY ALTERNATIVES "WISH"

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I've had a similar problem with my 13" macbook pro. You could get the LVDS cable from ebay at a cheap price. You will have to disassemble the LCD completely and will have to be very careful. You will need a suction cup and hair dryer or heat gun and you could use the following guide.

MacBook Pro 13" Unibody Mid 2010 LCD Replacement

This might fix your problem, although I am not sure about the state of the connector on the logic board itself. Was any pin left inside? And how were you able to reconnect them? The camera is still working fine since it is connected on the other corner.

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One of the websites that offer MacBook repair is powerbookmedic. I think you can find the parts you are looking for and they also have comprehensive guides where you can see how to open and replace parts of your macbook.

Some of things that could go wrong with the screen would be the screen itself, the logic board or the cables. Since you mentioned that it works fine with an external monitor, the logic board must be ok. So that leaves you with the problem either being with the screen or the cables.

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Hi All,

I got the same problem. The laptop is working with an external LCD.

My screen laptop is black (I could see screen content with proper lighting). The light in the apple logo is also dead.

First, I thought it is the screen problem. I was thinking to get the screen replacement.

I asked LaptopMD for second opinion. They said the logic board is damaged and advised to continue using an external screen. Do you think this is correct?

Thanks.

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you are having a fault in your backlight circuitry. Check the WLED driver...

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You might want to check that it's not just the connection where the screen plugs into the motherboard. I once just unplugged the wee connector, and plugged it back in and the screen was going again. P'raps some Contact Cleaner might help... I am about to find out as that same MacBook Pro has come back to me with the same black screen issue as previous.

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