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

629 Questions View all

Graphics card resistor issue

So, I removed the resistor from the logic board so I could use the mac, but when I reseted the smc and nvram I got no screen. And I lost the resistor but when I touch with my screwdriver the screen turns on. Now comes the part where I need your help, I screw up the resistor pad (its brown), how can I fix it, and if I can, where can I buy it ?

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Update (07/31/2020)

New and focused image

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Update #1

I found this, but I don’t know what I am looking at

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Update #2

Also found this, I guess this is something helpful no?

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Answered! View the answer I have this problem too

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Your picture is too blurred (and dirty) to see the damage.

Try using a tripod as well as increase the light (indirect soft lighting, no hot spots) so your camera uses a faster shutter speed and smaller aperture.

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I posted a better image

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@ze_castro - Now you need the boardview drawing so you can identify the part by its placement and then identify the pad point.

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1 Answer

Chosen Solution

@ze_castro - Much better! Can we try cleaning the surfaces a bit with a cotton swab and isopropyl alcohol so the flux and junk is removed.

The question is how much of the copper pad is still present. If not then you'll need to figure out where the nearest point the trace was part of. This will require access to the schematics and board views for your logic board. Locate the 820-???? number on the board as we’ll need it to find the info to trace out the circuit.

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ze_castro will be eternally grateful.
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