N64 RGB mod help - I'd like to use VGA...

[tbonesteak4dinner]

Hi guys,
My next project is to RGB mod a Nintendo 64 following this mod: http://www.mmmonkey.co.uk/console/nintendo/ntsc_nintendo_64_rgb.htm
I can perform the mod itself fine, but my issue is that being in the US, I can't use SCART.

My DLP projector can handle a scan rate of 15khz natively through VGA input, so can I simply splice a VGA head onto the end of the N64 SCART lead and use it as is, or is there extra circuitry needed even if I don't need to double the scan rate?

[zakurowrath]

Can your DLP accept a composite sync because that's what you get from the N64.

Normal VGA has horizontal and vertical sync, most all 15hz video game consoles use only composite sync which is horizontal and vertical in one signal.

However if your DLP can then go for it see if you get a picture, here's a guy that did it in the opposite direction VGA to SCART, same principle but you will be going the other direction. There's a pinout on his website for you.

http://www.uniw.net/other/kabelki2/vga2scart_1/ryoandr.free.fr/english.html

[tbonesteak4dinner]

Thanks! Just what I needed.

Unfortunately my projector needs split sync, so it looks like I'll be building/modding the RGB to VGA converter that he has listed on the site as well. Oh well, at least I know what I need to do now.

Thanks again. 

[zakurowrath]

No problem 

There is one thing you could try, it depends on your DLP Projector thou. I'd honestly trust the VGA scalier over this option, but you could get a LM1881 chip, and get a vertical sync that way. The composite sync would become the horizontal sync signal and it may or may not work.

http://www.mmmonkey.co.uk/console/other/sync.htm

[scarmullet]

http://benheck.com/forums/viewtopic.php?f=58&t=43034

I intend to do something like this, but take it a step further...HDMI.

[zakurowrath]

http://benheck.com/forums/viewtopic.php?f=58&t=43034

I intend to do something like this, but take it a step further...HDMI.

I saw that, I hope that project comes to light soon, I'd love to have VGA on my N64.

[tbonesteak4dinner]

No problem 

There is one thing you could try, it depends on your DLP Projector thou. I'd honestly trust the VGA scalier over this option, but you could get a LM1881 chip, and get a vertical sync that way. The composite sync would become the horizontal sync signal and it may or may not work.

http://www.mmmonkey.co.uk/console/other/sync.htm

Oops, spoke too soon, I did some more digging in the manual and looks like it will accept a composite sync over the vertical sync pin - but it says "Apple Only." I have no idea what that means (did Apple have a proprietary sync in its earlier monitor outputs?) but that's enough for me to give it a try. I just ordered a Super Famicom Scart cable, a female Scart socket, and I have a couple VGA cables that I don't mind chopping up, so we'll see where that goes...

If that doesn't work I'll go on to your idea of using an LM1881 chip and trying the composite sync for the horizontal pin. My projector always seems to pull off video magic tricks even with unsupported formats so I feel like one of these two solutions should work out. Fingers crossed...

[ShoothimNow]

http://benheck.com/forums/viewtopic.php?f=58&t=43034

I intend to do something like this, but take it a step further...HDMI.

High Risk Website Blocked

    Location: benheck.com/forums/viewtopic.php
    Access has been blocked as the threat Mal/HTMLGen-A has been found on this website.

sophos anti-virus


Heh...

[tbonesteak4dinner]

High Risk Website Blocked

    Location: benheck.com/forums/viewtopic.php
    Access has been blocked as the threat Mal/HTMLGen-A has been found on this website.

sophos anti-virus


Heh...

Meh...Most likely overzealous virus projection.

I can't tell you how many false positives I've been vigorously "protected" from.