WII RGB booster

Started by stepheneking, October 02, 2010, 02:17:47 AM

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stepheneking

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
http://www.mmmonkey.co.uk/console/nintendo/ntsc-n64-rbg-booster1.htm

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
http://arstechnica.com/civis/viewtopic.php?f=6&t=1002224
http://pinouts.ru/Video/VGA15_pinout.shtml
http://myhometheater.homestead.com/vgacable.html

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

panzeroceania

hmm, so only the PAL Wii outputs RGB, and it only does so at 15khz? lame I was wanting to do a Wii VGA mod sometime for great 480p RGB

albino_vulpix

There is a Wii VGA cable available (here's a review). I have no idea how they get it to output progressive and RGB at the same time though.

panzeroceania

yes I know about vdigi products but NTSC Wiis don't have RGB in the pinout do they? so they're probably converting the component signal, in which case you might as well just stick with the component.

albino_vulpix

Suppose I should have read the whole article :p

stepheneking

I just think that Nintendo didn't do their homework before construction....why would you develop something like this without considering all the technologies available to you....it would have cost them little to nothing to implement VGA on this damn thing.

From what it sounds like is that this n64 mod just increases dc voltage across the signal...increasing the brightness. I would love to find an easy scan doubler circuit to construct...to help in my situation...anyone know of anything?  I might just end up getting the vDigi cable....I would rather get my hands dirty and make one. To bad someone hasn't cracked one of these babies open to see how it ticks.!?

There has to be a way to output the signial on the DAC a little higher right??? Anyone know anything about this DAC on the wii? Can you do it through code???

zedrein

I own the Vdigi brand Wii VGA cable and it definitely doesn't pump out "VGA sharpness" by any means [even though colors do look natural and there's no noticeable bleeding]. And it definitely is transcoding the Y Pb Pr (component) signal, so no real RGB coming from the console. Another thing that sucks about it is that sometimes certain monitors can't sync with it. I booted up Mega Man 9 the other day and my display just flickered and brought up a little box that said "Cannot sync with current scanrate". Too bad Nintendo didn't deliver on their initial promise that we would get VGA with the Wii at launch :'(

stepheneking

Yeah? I guess if you are wanting to get the wii on your VGA monitor, the vDIgi is the closest thing. If someone would help me figure out how to bump up the RBG signial we could provide an alternative way to get VGA with the wii. I mean it will produce the RGB signal it just is way to low frequency and needs to be bumped up. I was hoping that I could get an electronics Major here to give us a hand. I know there is a way to do it with electronic components I just don't know what ones.
  So if anyone out there knows this process please let us know I am willing to test it out and get it going. :-\