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VGA to s video ??

  • 27-12-2002 5:23pm
    #1
    KdjaCL
    Closed Accounts Posts: 20,346 ✭✭✭✭


    I thought this was impossible

    but http://www.trianglecables.com/1footvgadbma.html

    im nearly sure Db15HD is an old standard output but not sure.

    anyone know of these and if theyw rok.

    kdjac


Comments

  • #2
    longword
    Closed Accounts Posts: 741 ✭✭✭longword


    Perhaps it's designed for some specific VGA card that has special support for this output - a standard VGA connector offers only RGB. There's no way for a simple cable, particularly one that costs $15, to translate a baseline VGA 60Hz non-interlaced/31kHz signal into a 60Hz interlaced/15kHz signal.

    It's possible the cable at least contains the relatively small bit of electronics required to turn an RGB signal into a modulated composite one, relying on the video card to output an interlaced signal with TV sync rates (nVidia cards aren't capable of that, but ATI and Matrox cards can AFAIK).


  • #3
    KdjaCL
    Closed Accounts Posts: 20,346 ✭✭✭✭KdjaCL


    Im nearly sure that DB15hd is the Commodore Amiga output hence it being able to transfer to s video.

    But not sure its been a while.

    kdjac


  • #4
    longword
    Closed Accounts Posts: 741 ✭✭✭longword


    Originally posted by KdjaC
    Im nearly sure that DB15hd is the Commodore Amiga output hence it being able to transfer to s video.
    The Amiga didn't use any High Density connectors (with the possible exception of the A3000, not sure about its deinterlaced output). The standard video output is a 23-pin D connector with only an RGB signal available on it. The original A500 came with a 20cm long box that plugged into the 23-way video output to give you composite and RF. A few of the later machines (A1200 at least) had a built-in composite output presented as a standard RCA phono socket.


  • #5
    po0k
    Registered Users, Registered Users 2 Posts: 15,817 ✭✭✭✭po0k


    the A600 had the 23-pin video out, the composite = sound, and the RF modulator in the back.

    The DVI connector packages all the necceary pins into one block doesn't it? one set of ramdacs at least being present in the chip, am I right?


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