4 contact surfaces, then it is most likely S-Video. But what is the order in the device...
If the nomenclature is followed, then
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Pin 1 GND Ground (Y)
Pin 2 GND Ground (C)
Pin 3 Y Intensity (Luminance)
Pin 4 C Color (Chrominance)
You can experiment, if you miss something you can't be dangerousEither there will be no picture or there will be no colors.
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