TV-OUT RGB CABLE

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  • SiRiO_KD
    mini MURCer
    • Nov 1999
    • 41

    #1

    TV-OUT RGB CABLE

    I made RGB cable with instructions founded
    here, but the video signal are noised.

    My cable has all wires shielded except external shield, is this a problem ???
  • zarnow
    mini MURCer
    • Nov 1999
    • 6

    #2
    Its a really surprise to me!
    Perhaps something is wrong with your TV SCART socket, or you have SCART plug of bad quality (I have the same some time ago)...

    Jacek

    Comment

    • SiRiO_KD
      mini MURCer
      • Nov 1999
      • 41

      #3
      Powerdesk setting is to SCART RGB position, and my TV is a last model of THOMSON.
      My S-VIDEO works well so i think isn't a TV problem.

      I've tried to cut RED component from SCART connector but i still see RED COMPONENT, so i think my cable uses COMPOSITE connection.
      (VIDEO signal pin 20 is present so G400 uses it!!!)

      How i inform G400 and my TV to use RGB connection instead.

      Comment

      • zarnow
        mini MURCer
        • Nov 1999
        • 6

        #4
        Thank you, Lorenzoc!

        Sirio!

        Have you readed my original recipe?
        In the very first line of it I wrote,
        that you must check your TV for RGB input
        option on SCART socket!!!!
        In my TV, I have the same options as Lorenzoc, i.e. composite OR RGB input.
        In composite position, your picture will be noisy and bad, of course.
        Pls check your's TV options

        Jacek

        Comment

        • lorenzoc
          mini MURCer
          • Sep 1999
          • 56

          #5
          Sirio_KD,

          my cable works perfectly (BTW many thanks to Jacek).

          Maybe your TV should be set-up to work with RGB: on my SONY TV I can select, for the SAME SCART connector, Composite or RGB through an "OSD menu".

          Lorenzo

          Comment

          • SiRiO_KD
            mini MURCer
            • Nov 1999
            • 41

            #6
            My TV dont have this setting, i can change only between Video and S-Video.

            I applied a 1.5V (with a battery) to pin 16 and cable switch to RGB mode.
            When i can get a voltage in range 1-3V to apply to pin 16 of SCART connector.

            Maybe pin 9 of VGA connector of G400???

            Comment

            • zarnow
              mini MURCer
              • Nov 1999
              • 6

              #7
              Sirio!

              Pls read the FULL G400 Instruction Manual,in .PDF format from G400 CD!
              There are G400 pinouts on page 41 (in hardware section) explained.
              BTW, if your TV does'nt have RGB option - use
              SVHS instead.

              Jacek

              Comment

              • waxling
                mini MURCer
                • Oct 1999
                • 55

                #8
                If you read my post http://forums.murc.ws/ubb/Forum5/HTML/005719.html

                you'll see that RGB enable (what your after ) is carried on pin 16 on the SCART and pin 13 on the VGA connector.

                Someone (neanderthal) mentioned that pins 12 & 15 need to be shorted together.

                Hope this helps.

                Comment

                • SiRiO_KD
                  mini MURCer
                  • Nov 1999
                  • 41

                  #9
                  waxling, due to not availability of wires, can i connect pin 17 (VIDEO GND) to pin 18 (RGB ENABLE GND)???

                  tnx.

                  Comment

                  • SiRiO_KD
                    mini MURCer
                    • Nov 1999
                    • 41

                    #10
                    to All,
                    My TV don't show me any RGB option so i'm trying to use RGB enable from VGA connector.

                    Waxling, i suppose pin 13 of VGA cable, has a voltage perfectly compatible with RGB enable of SCART connector (1V -> 3V).

                    I hope if it works well.

                    tnx a lot.

                    Comment

                    • waxling
                      mini MURCer
                      • Oct 1999
                      • 55

                      #11
                      Yeah you should be able to substitute the ground pin on one end with any other ground pin at the same end.

                      Hope you get it working coz the picture you get is far superior to any other method.

                      Comment

                      • neanderthal
                        mini MURCer
                        • Nov 1999
                        • 7

                        #12
                        There is only one ground at either end, the multiple grounds (r,g,b,video etc) are for ease of creating cables with seperately shielded signal wires. The quality on long runs will be better but its not *strictly* necessary.

                        The RGB enable (pin 16 :scart) can be connected directly to one of the monitor ID pins (pin 13 :VGA) and will switch the TV/Video over to either RGB/Composite. It works Ok on my (old) Philips TV. When you change the RGB/Composite option in DualHead setup the TV changes between the two.

                        Shorting 12 & 15 on the VGA acts as the "dongle" to tell the card to enable TV-out.

                        Comment

                        • SiRiO_KD
                          mini MURCer
                          • Nov 1999
                          • 41

                          #13
                          tnx to all.

                          RGB cable works well also on my TV.

                          cya.

                          Comment

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