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S-video jack

Discussion in 'Electronic Repair' started by meirman, Jan 17, 2005.

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  1. meirman

    meirman Guest

    Is S-video the same as regular video and left and right audio (such as
    feeds a tv monitor, via RCA plugs), but just combined so it all fits
    in one connector? Or is it electrically different from that?

    There are several reasons I would benefit from understanding this.
    One is that I only ran coax from room to room, and should have run
    video and audio cables too. If S-video is the same as one video and 2
    audios, it would be a lot easier to run at this stage.

    Thanks.

    Meirman

    If emailing, please let me know whether
    or not you are posting the same letter.
    Change domain to erols.com, if necessary.
     
  2. Marko

    Marko Guest

    No. S-Video uses two shielded conductors for video. One contains the
    luma signal (black & white information + sync). The other contains
    chroma information (color). There is no audio in S-Video. The audio
    must be handled separately.

    S-Video is better quality than composite video (single coax) because
    there is no interference between the luma and chroma information (the
    video looks clearer). However, S-Video requires the two cables. Even
    better is Component Video, which takes three cables. With all video,
    coax should always be 75 ohm. In all cases, audio must be carried
    separately.

    Better yet is digital video such as DVI and HDMI.

    Marko
     
  3. meirman

    meirman Guest

    In sci.electronics.repair on Sun, 16 Jan 2005 23:46:56 -0800 Marko
    Thanks a lot. I was just taking a shot.
    Well, that sounds better than my idea. I still may run all those
    wires some day. I run a decade or two behind high-tech. :)

    Meirman

    If emailing, please let me know whether
    or not you are posting the same letter.
    Change domain to erols.com, if necessary.
     
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