Need help supergun video probs

Hello everyone i'm having problems getting video here i have RFjet and RF2 both SPI systems, i've tried 3 tv's, 27" sony, 20" toshiba all i get is a black and white picture with rolling constantly
the 3rd tv i tried was this cheap 20" offbrand
no rolling but B/W picture though....im using a ubergun from the uk here in the usa with a keene
rgb to svideo convertor...everything powers up
with no probs except for what was mentioned..any suggestions?? thanks thrall... frown

The SPI hardware uses a non-standard sync which will fuxx0r most consumer TVs, especially the 'high end' ones which are wound just a little too tight for their own good.

Where most PCBs and VCRs and DVDs run at 60Hz (or very close to it) the SPI runs at 54Hz IIRC.

This is also a problem for people using LCD monitors with an upscan unit, the LCD monitor isn't as tolerant in many cases as a tube would be.

O my so what do you suggest here...im going nutz trying all of these tv' out!!...thrall..ugh

<small>[ August 11, 2003, 09:23 PM: Message edited by: thrall ]</small>

So, are you using RGB or S-video to input the video signal to your t.v. ? eye eye

Perahps you need to use an other RGB -> S-video converter?

<small>[ August 11, 2003, 10:31 PM: Message edited by: JAMMASLOT ]</small>

Wow...I'm glad this subject came up. I've been looking for a Viper Phase 1 cart and SPI board combo for quite some time. Are these playable on ANY types of NTSC TV's via a Supergun, or am I screwed?

If you have an XRGB-* and a VGA monitor you'll probably be fine. Since it's a non-standard spec you won't find support for it listed in any manufacturer's spec sheet, you're gonna have to just try it and see, or ask around.

Note that the XRGB units do not mess with the sync rate. If you put 54Hz in you'll get 54Hz out.

Thanks for the input guys i just talked to paul over at uberia he's sure that the RGB convertor
that he sent me is a PAL version hes getting a jrok for me and mounting it in some kind of custom box setup all taken care of thank you all
peace...thrall