FC Game Console Pin Jargon

[Brandon]

Ok so from the board with the Controler Plug ins and power re-set button to the board with the 72-pin connector for the NES games there are 11 wires and i dont know what they do. Only clue are these little letters by the wire. So i was wondering if anyone knows what they mean, they are: 1-SW1, 2-VCC, 3-P1D0, 4-CK2, 5-P2D4, 6-GND(omg, i think i know this one, but not what i do with it), 7-RES(cant read), 8-P2D0, 9-CK1, 10-P2D3, 11-OUT0. So uhh yeah only seven should be the controller hook up, then 1 for turn on and one for reset but thats only 9? Help the noobert.