Sega Genesis/megadrive RGB SCart to S Video?

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EpicDave
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Sega Genesis/megadrive RGB SCart to S Video?

Post by EpicDave »

Would it be possible to get S Video out a sega genesis by just using the scart video out adapter with s video? Like they sell those adapters that have scart female on one side and s video as well as composite and 2 rca stereo outputs. I was wondering if that would work. I currently don't have a way of displaying scart of any kind so I was hoping this would work since S video is the next best thing.
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Fudoh
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Re: Sega Genesis/megadrive RGB SCart to S Video?

Post by Fudoh »

no, you would need an external s-video encoder. Micomsoft offered these for the MD and the Neo Geo, e.g. the XMD-1 or 2.
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Einzelherz
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Re: Sega Genesis/megadrive RGB SCart to S Video?

Post by Einzelherz »

Are you not able to use component either? $50 scart to component adapters work pretty well.
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EpicDave
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Re: Sega Genesis/megadrive RGB SCart to S Video?

Post by EpicDave »

Einzelherz wrote:Are you not able to use component either? $50 scart to component adapters work pretty well.
They do? I didn't know if they did or not being so cheap. Is there any quality loss?
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Re: Sega Genesis/megadrive RGB SCart to S Video?

Post by Einzelherz »

I have a $50 one from amazon (doesn't have audio out) and on my HDTV and my CRT it looks fantastic. If you're using an HDTV it needs to be able to understand 240p, but you can check that with the composite cables by plugging yellow into green and setting it to component.
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Re: Sega Genesis/megadrive RGB SCart to S Video?

Post by FinalBaton »

Same. I also have a generic $50 SCART-to-component transcoder from ebay, and it does a good job. It looks noticeably better than s-video, even on a consumer CRT.

I had to tweak the pots inside to calibrate it (but not all generic transcoders need to be calibrated, though. Some of em do but some of them are well calibrated out of the factory. It's a dice roll). If you want the same quality(or even a tiny bit better) but don't want to have to calibrate it : get a CSY-2000 transcoder (wich is what the generic ones are based on). It should be well calibrated from the factory.

There are high-end ones from Kramer that are even better, but they generally cost a lot more and are a lot harder to find.

I say get a CSY-2000 or a clone.
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Re: Sega Genesis/megadrive RGB SCart to S Video?

Post by atheistgod1999 »

I believe it would be possible with some modification:

You could follow all the steps to an S-Video mod except for drilling hole(s) in the shell and putting in the S-Video port (as well as connecting the luma and chroma lines to it), and instead either (a) cutting two existing traces to the A/V out (preferably composite and mono audio IMO) and connecting the luma (preferably where composite was; I'll explain down below) and chroma wires in their places OR (b) installing some kind of switches on the traces and connecting the wires to them so you can switch between the original outputs and S-Video.

This would require a custom/modded SCART cable with wires connecting the pins you chose for S-Video on the A/V out to some unused pins on the SCART end (read below for a much easier alternative I thought of as I was typing this), as well as either a custom SCART-to-4-pin DIN adapter if you're using a North American TV or a SCART-to-BNC adapter if you're using a professional monitor (unless it's made by NEC or something).

The reason why I said it would be best if luma was connected to the composite pin? Because composite, luma, and sync are all used for the same pin, so you could just use a sync-on-composite Genesis SCART cable and only have to connect the chroma pin (presumably what was originally mono audio) on the Genesis to the one officially used for S-Video (only other thing mapped to it is blue input) and a normal adapter (if they exist). With that, you'd have sync-on-luma for RGB, though.
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Re: Sega Genesis/megadrive RGB SCart to S Video?

Post by neorichieb1971 »

hdretrovisions Genesis component cable goes on sale at the end of June apparently.


www.hdretrovision.com
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Guspaz
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Re: Sega Genesis/megadrive RGB SCart to S Video?

Post by Guspaz »

I clarified with them, kickstarter orders are going out sooner than that (their update implies they'll start shipping within the next 2-3 days), June is when they expect to launch their online store with the remaining stock.
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Re: Sega Genesis/megadrive RGB SCart to S Video?

Post by Shoryukev »

For the price you'd pay for all the converter boxes to go from scart to component, and then from component to s-video...you might be better off trying to find an s-video modded genesis. I bought my genesis already re-capped and s-video modded on ebay about a year ago for $60. I opened it up and saw how easy it was to do and s-video modded my master system with about $7-8 worth of parts :D

It's obviously not as good as RGB, but it's miles ahead of composite video if you don't have access to RGB compatible displays (which I don't either). If you have a soldering iron it really isn't that hard to do on a model 1, and if you don't poke holes in the case it doesn't really hurt anything. Model 2 is another story, my jittery hands weren't good enough to solder to the pins on the smaller chips LOL.
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Re: Sega Genesis/megadrive RGB SCart to S Video?

Post by neorichieb1971 »

Guspaz wrote:I clarified with them, kickstarter orders are going out sooner than that (their update implies they'll start shipping within the next 2-3 days), June is when they expect to launch their online store with the remaining stock.
Its safe to suggest this guy doesn't back the kickstarter hehe.

I will buy both versions of the component cable.
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Guspaz
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Re: Sega Genesis/megadrive RGB SCart to S Video?

Post by Guspaz »

Yeah, I only found out about the cables shortly after the kickstarter had ended. I would have backed them had I known about it. And I'd possible have cables by now, they've been shipping them out, and they started arriving at people a few days ago. Early results appear good.
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