Function of MBP logic board copper pins
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.
And the location of the sound chip itself, labeled with u6200 ... http://root.dietmarstein.com/tmp/a1297/p...