Вопщем маленько опшипся
... 4 и 7 контакта у обчных с-Видео бывают...
а.1-GND-Ground (Y), 2-GND-Ground (C), 3-Y-Intensity (Luminance), 4-C-Color (Chrominance)
в. 1-GND-Ground (Y), 2-GND-Ground (C), 3-Y-Intensity (Luminance), 4-C-Color (Chrominance), 6----, 7-V-Composite Video, 5-VGND-Composite Ground