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VGA Cable

Discussion in 'Electronic Repair' started by Zahary Karadjov, Dec 4, 2004.

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  1. Hello,
    I'll be building VGA to RGB Scart cable as proposed in this article:
    (scanned version)
    I'm wondering which particular cable should I buy for the task.
    Can someone evaluate for me the importance of shielding of each of the
    cores involved in the cable: RGB(3), RGB Grounds, Sync, Sync Return.
    Thank you for your help and sorry if my english or terminology is not
    very good.
  2. Graham

    Graham Guest

    Individually screened signal wires are essential.
    Gold plated contacts and low oxygen copper cables a waste of money IMHO


  3. James Sweet

    James Sweet Guest

    Just use an old cable from a scrapped SVGA monitor, if they're good enough
    for the monitor they're good enough for a SCART TV. I'll even *give* you one
    for the cost of postage, but I suspect you could find one locally for a lot
  4. Franc Zabkar

    Franc Zabkar Guest

    To avoid ghosting issues, use 75 ohm cable for each of the RGB pairs.
    As stated elsewhere in this thread, you can cannibalise an old monitor
    cable for this purpose.
    The article states that VGA pin 13 is composite sync. My understanding
    is that pin 13 is horizontal sync and pin 14 is vertical sync.
    Furthermore, sync polarity varies according to the graphics mode. Can
    Powerstrip redefine the function of these pins for TV mode?

    - Franc Zabkar
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