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Electronics question for those who might know..

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  • Electronics question for those who might know..

    Say you have a vido cable for a device, and this cable has a 2-position switch to select between 2 different output modes - HD and SD - and has separate connectors for the Component and Composite signals, with the Audio for either choice being shared, for a total of 6 connectors.

    The cable is wired so that only one video format option is active at a time.

    Now, suppose you were to modify the cable's switch so that both video options were always active, and selectable by the receiving device (say you have both sets of outputs to the same TV and select the Component Source for the HD and Composite Source for the SD in the TV's input options).

    Would this modification cause an issue for the source device? I'm not sure of the exact pinout configuration, but I think each video source has its own ground. Would having shared grounds be a problem in this modification?
    I want to depart this world the same way I arrived; screaming and covered in someone else's blood

    The most human thing we can do is comfort the afflicted and afflict the comfortable.

    My Blog: http://newcenstein.com

  • #2
    Sounds like its the xbox360 video cable or one similar. The grounds being shared wont be a problem, as the audio is shared and internally they all go to the same place (the 360's chassis) but I dont think the 360 can output both at the same time. I remember modding my original standard xbox cable to component ('hd' was never supported here officially for quite some time) and theres a different set of mode switching to tell the xbox(360) what to output. I gather its still the same like that with the 360. Vga/SD/HD/HDMI all having different states. (it was like having pin12-13 connected, 11 disconnected, 14 going to ground or shit like that). Thats why switching the button makes the xbox hard reset.

    If it isnt the 360 cable, then I wouldn't have a clue!

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    • #3
      Yup, it's the 360 cable

      If it's an internal (console) switching issue, then how would the switch-less Monster video cable work? It's gotta have SD pins missing then?

      Those missing pins should go with the missing SD connectors.

      The only info I've found so far is how to mod it to a VGA cable, and the one site I found won't email me the registration link so I can ask them, and apparently I'm the only person in the world who wants this
      I want to depart this world the same way I arrived; screaming and covered in someone else's blood

      The most human thing we can do is comfort the afflicted and afflict the comfortable.

      My Blog: http://newcenstein.com

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      • #4
        haha yeah I'd say you are. The 360 uses its 'ana' scaler chip to output everything ('hana' in the hdmi models) and it only runs one stream that I know of. Everything is rendered internally (720 usually, but obviously devs can choose whatever they want, like halo3's dual 1152x640 frame buffers) and then output via the scaler to the desired resolution and method (analog/digital). I'd check the xbox-scene forums and see if anybody there has asked or done it, to see if its possible.

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        • #5
          I dont do the games but Halo 3 looks kickass in HD
          shawnlutz.com

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          • #6
            <<<<<<<<< dispatches aerial recon to fly over the good Dr.'s homestead (there's more to Newc's dilemma than meets the eye - homemade ICBM perhaps?)
            My future band shall be known as "One Samich Short Of A Picnic"!

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