Another Supergun question...Scart

And let me tell ya....There will be more.. hehe

Ok, I got these plans to put a scart connector. I chose it just in case I buy a monitor or a RGBX. But right now this is what I to do...

Here's the plans:
TV with a SCART socket wires as follows.

Connector = SCART

Pin 12 from the JAMMA to Pin 15
Pin N from the JAMMA to Pin 11
Pin 13 from the JAMMA to Pin 7
Pin P from the JAMMA to Pin 20
Pin 14 from the JAMMA to Pin 17, 13, 9 and 5
+5v from PSU to Pin 16 via a 100ohm resistor

Not all TV's with a scart socket support the RGB input on it, consult your TV manual to make sure yours does.

With any monitor using RGB inputs (not a PC VGA monitor) it's normally a simple case of connecting up the RGB, Video Sync and Video Ground and it should work. If the monitor uses separate horizontal and vertical sync try connecting the video sync to the vertical sync only, sometimes this works. If not you will need to buy a IC that can extract both signals from the video sync.

Ok, Now can I hook this up then put this adapter on it so I can use it on a regular tv?

I've always wondered myself, but I'm guessing it isn't possible because that device appears just to lead the composite video into the scart.

You will need JROKS RGB to Compositve/S-Video convertor board, so your TV has to handle trust NTSC.

Best to go the RGB route if you can, as it gives best picture.

Really don't think so man, I mean it just looks like a pass through and nothing more. If it turns out I'm wrong then hey LET ME KNOW! Cause I'd LOVE to grab a few of those and go to town with "Mini" Superguns..

Peace

JHendrix

<a href="http://www.jrok.com/hardware/RGB.html" target="_blank">http://www.jrok.com/hardware/RGB.html</a>

This is ideal for US based people who don't have RGB SCART.

Also good for people in Europe who have decent 3.58 NTSC TVs/Videos.

You won't get rgb picture with that Scart accessory.

It does not convert any RBG signal, it only offers support for Scart connection.

I would highly recomend you to build one yourself to take full advantage of the scart capabilities.

no you can not use that it is for scart rgb to composite not the other way around.

I think there is some confusion.. I thought the guy wanted a supergun to work with RCA Composite or S-Video (seeing as there was a picture of Composite/S-Video connector as everybody knows SCART can handle composite input, not all SCART TVs handle S-Video though, S-Video came out after Scart was out, and hence most TVs don't support Chrominance on Pin 15 and Luminance on Pin 20)

RGB is a lot easier and doesn't require the RGB -> Composite/S-Video convertor.

Just wire up the Red, Green and Blue signal from the Jamma loom to the SCART pins 15,11 and 7 (make sure you use a 1K variable resistor otherwise you will get horrible colour bleed as PCBs give out 1 to 4vpp while a TV expects 0.7vpp), wire up the Sync to pin 20 and wire the Video GND to pin 17, also some TVs require 100ohm resistor on the +5V Blanking pin 16 on the scart to activate RGB mode.

Alright, Thanks alot guys, I'll use this then: <a href="http://www.jrok.com/hardware/RGB.html" target="_blank">http://www.jrok.com/hardware/RGB.html</a>

Thanks.

Can anyone answer my power supply question in the other thread?

[ August 06, 2002: Message edited by: Piccolo_DBz ]</p>

Andy, only Europe has SCART, and hence only european TVs have RGB in.

That connector is a S-Video or Composite IN adapotr, for plugging S-Vid or Comp into a SCART TV. The RGB pins aren't wired at all, plus its an input. There's no conversion in there!

As you said, you just link the terminals - R to R, L to L etc. Well that's all this does: Comp out to SCART Comp in, audio etc.

Sorry! You need a circuit to convert RGB to composite or SCART. Perhaps you could adapt the neo s-vid mod for this purpose?

Europe is not the only place with SCART, some of Asia has SCART (Japan), not sure about Auz, but some TVs in US have SCART, LG TV's that you can by from the BX (Military shops) which are multi-region have SCART.

I think Piccolo_DBz doesn't have scart thats why I recommended him the RGB -> Composite convertor, us Europeans don't have that worry as we just use RGB (However nobody seems to mention not all games work on a Supergun, due to sync problems, Naomi for example!).

<img src="graemlins/spock.gif" border="0" alt="[Spock]" /> So a naomi doesn't work at all on a supergun?

Naomi didn't work with my SCART TV, the bottom half of the picture was fine, the top half was extremely wobbly..

This is without using the JVS Jamma adapter (So it might work with either the Sega or Capcom Naomi to Jamma adapter).

Fact is many Jamma games could suffer from the same problem, off course the problem can be sorted if your TV has V-Hold and H-Hold pots.

Oh ok,I'm really thinking of getting the RGB converter (PRICEY!) Is it compatible with the naomi board?

It is hard to say, to be honest us Europeans are a lot luckier our TVs have a higher tolerance (50hz - 60hz), I've heard many people in the US who have problems running game boards on there TVs (from Example Midway games like Mortal Kombat/SmashTV and other similar games, these use a sync rate of 53.20hz which in European TVs will be fine (its close to PAL timings, but in the US most TVs are fixed at NTSC 60hz 15.73khz meaning the picture will roll constantly).

Do most Video/TVs handle PAL videos? (In the UK we import a lot of US NTSC Videos/DVDs as movies come out a lot quicker there, so I'd say its not the same there).

You could talk to JROK about the adapter, he'd have a good knowledge about potential problems.

Anybody have any game boards that don't work/sync up with there TVs?

I do know that Konami games like TMNT/Simpsons/Aliens and such do have a slight wobble around the score area, but that doesn't really effect game play.

Naomi could be a lot simpler, as you can use it with any VGA monitor (some games will only work on VGA anyway).

By the way, the connector pictured on top of the page has a switch on top of it, so it can switch between input/output modes. Here's the rest of the info on it:
<a href="http://www.lik-sang.com/catalog/product_info.php?category=9&products_id=1467&PHPSESSID=d1100f6560eab2df3ec8cc5ef43e2d38" target="_blank">http://www.lik-sang.com/catalog/product_info.php?category=9&products_id=1467&PHPSESSID=d1100f6560eab2df3ec8cc5ef43e2d38</a>

I don't know if this will help. But, hopefully, it will clear some things up.

I'm sorry if this doesn't help.

So it does

But no, it still won't do what he needs and never will