Pinouts of Connectors

S-Video 7 pin connector pinout

layout
schematic diagram
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connector seen on ATI and other graphics cards

7 pin MINI-DIN FEMALE connector pin-out & layout
7 pin MINI-DIN FEMALE connector  at the videocard
 Sends video signals over a multi-wire cable, dividing the video information into two separate [75 ohm coax or twisted pair cables] signals: one for luminance (Light) "Y" and one for chrominance (Color) "C". Each signal is sent shielded, inclosed in a 4-pin Mini-DIN. S-Video is synonymous with Y/C "Component" video. S-video is a consumer form of component video used primarily with Hi8 and S-VHS.
Pin NameDescription
1GNDGround (Y)
2GNDGround (C)
3YIntensity (Luminance)
4CColor (Chrominance)
6 - -
7VComposite Video
5VGNDComposite Ground

Generally the first four pins on those 7-pin connectors on the same places as the standard four pin S-video connector have practically always the same fuctionality as those pins in S-video connector.
The other three pins can have then some extra signals which are not part of S-video (usually some pins of those carry composite video and some control signals, but the use of those three extra pins vary quite much).

Pinouts.ru > Pinouts of computer multimedia >  Pinout of S-Video 7 pin connector and layout of 7 pin MINI-DIN FEMALE connector

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