Wii RGB booster

Discussion in 'The Projects Forum' started by stepheneking, Oct 1, 2010.

  1. stepheneking

    Thread Starter New Member

    Oct 1, 2010
    So let me explain what I am wanting to do.
    I have been doing a lot of reading on the internet and have a few ideas, not sure if they will work
    I am wanting to get my wii onto my 19" viewsonic VP191b au.viewsonic.com/support/manuals/download.php?id=68 for specs on monitor

    Now the vp191b only accepts 30+ kHz on the RGB and as I understand the PAL wii outputs RGB in 15khz. I am wanting to boost this 15khz to 30khz so my monitor will be able to display the image. Now there are a few ways of doing this I assume.
    I will be using the composite sync on the SCART cable diagramhttp://members.optusnet.com.au/eviltim/gamescart/gamescart.htm since my monitor accepts c sync
    I am looking to spend very little for this mod I don't want to buy a scan doubler for this. Is there any circuit that I can make to increase the kHz on wii. I found this for the n64 that I assume does what I am wanting but on the n64.
    Link below

    Can I use the same concept to allow a higher kHz on the wii? Which will allow me to display the image to my monitor.

    I have made a cable that is component to VGA (hd-15) when I hook it up I get a picture but all in green....I assume its becasue the monitor is in Sync on Green. So I am trying to get my wii to output the RGB to my monitor. Any help on this would be greatly appreciated...

    I am wanting to make a new cable that is wii SCART to VGA using these pins.

    wii pins VGA pins hd-15

    7 -------> 1
    9 ------------> 2
    11----------------> 3
    5----------------> 5
    6------------------> 6 and 7
    12------------------> 8
    5----------------> 10
    3-----------------> 13

    I will then add my (hopefully do-able) RGB kHz amp/booster to pins 1,2,3 on my VGA connector. I assume I will have to pull 5v out of the cable to power it.

    I also found some info on a Japanese RGB amp circuit on the net..and I can't find the circuit diagram now...not sure if this would help my situation.

    Some sites I used for information

    http://www.mythtv.org/wiki/RGB_Scart RGB SCART

    Anyone that can give me a hand figuring this out would just make my day....and probably someone else as well.
  2. kubeek


    Sep 20, 2005
  3. stepheneking

    Thread Starter New Member

    Oct 1, 2010
    Is there anyone out there who knows how to make this circuit with a ICs or some components....there has to be a way to boost this frequency. I'm willing to give her a shot if someone gives me the knowhow.:(
  4. marshallf3

    Well-Known Member

    Jul 26, 2010
    It's not just the horizontal, the vertical will have to follow as well.

    I'm thinking there has to be some sort of creative way to do this but it may involve double conversion, i.e. Wii to USB back to VGA
  5. kubeek


    Sep 20, 2005
    The only way I can think of is some DSP processor which will sample the composite signal, and somehow resample it to the desired frequency. Not sure how complex will the code be, but if you really want to do it, you can start looking for a suitable processor and hopefuly you willl also find libraries that are able to do what you want.

    No idea how much the scan doubler costs, but it maybe cheaper than making one by yourself. That depends on what experience and tools you already have.