Chosen Solution
Hello What function do the red circled copper pins do have, which are “all over” the logic board of e.g. my MBP A1286 or A1297? One of them has been broken and it seems as there is a copper line below it on or within the PCB. Picture has been attached. Regards, Stone Update (08/23/2013) And the location of the sound chip itself, labeled with u6200 … http://root.dietmarstein.com/tmp/a1297/p… http://root.dietmarstein.com/tmp/a1297/p…
Can you take some hi resolution pics of the area when the pin is now missing and one just back a bit so we can ID that part of the logic board. So we can see the damage and ID what the circuit is. Update Well I did some more investigating and was able to locate on the schematic for this system. The pins as it turns out are tied to the chassis ground. So one has to assume these are fixture guides used in the assembly process or Apple thought they needed an EMI shield to cover over the PCB as they are laid out in a pattern.
I have a 13inch has these pins . One is missing. I can see the marks in case from it. Could it be causeing my screen to not light up. It comes on but is dark. Ive tried reseting everything. And when hooked the tv its perfect not dark
