Homemade VGA to Component cable, CAT5e

Discussion in 'Cables & Switches' started by davelee1097, Sep 4, 2007.

  1. davelee1097

    davelee1097
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    Hi I'm having trouble making one of the above cables, Basically I have a CAT5e cable in my wall for my TV and wanted to use it for a video cable for my Media centre PC but want 720p so a VGA cable is out of the question so I decided to make a VGA to component using this guide http://www.myhometheater.homestead.com/vgacable.html

    But it doesn't work, any ideas?
     
  2. hornydragon

    hornydragon
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    a VGA to component cable will only work if PC can output component video YUV/YPbPr wont work with a standard VGA (RGBHV signal) why not PC to 1280x720 output and use VGA?
     
  3. Mr Incredible

    Mr Incredible
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    Do a search for a Baluns. IIRC someone had a similar problem and needed a pair of "Baluns" to negotiate the signal on and off the Cat5 cable.
     
  4. SeanT

    SeanT
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    Yep, a VGA over Cat 5 kit will do the trick, try CPC on a budget.
     
  5. davelee1097

    davelee1097
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    Yeah its really weird, I can't get a picture usually (Just a blue screen).
    But if I use PowerStrip and create a custom 720p resolution I get a picture but its really green and wobbly.

    Any Ideas?
     
  6. SeanT

    SeanT
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    Yes, the cable isn't designed to carry video, you need a balun / sender to do it properly - just mine (and Mr I) tuppence.

    Btw, you may get away with sending component (as long as the pc can output component, which is usually over a breakout cable into the svideo output of the graphics card, and not from the VGA socket), if you use one pair of wires for each signal/earth pair (ie. 3 pairs for red, green and blue (cpr, y, cpb) respectively), but probably not VGA because of impedance issues and it requiring 9 seperate wire connections to work properly (and you only have 8 wires in the cable)

    P.P.S. really sorry for using nested brackets in a post!!!
     

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