XMD s-video output for the Genesis/Sega CD/32x

Discussion in 'Sega Discussion' started by Gazza, Feb 7, 2009.

  1. Gazza

    Gazza Active Member

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    Check out an eBay seller by the tag of 'jump-to-japan'
    If he doesn't currently have it listed in his eBay store, ask him whether he could get one for you.
    But as some of the guys here have noted- these units aren't cheap at all.
     
  2. Yakumo

    Yakumo Pillar of the Community *****

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  3. sonik

    sonik Site Supporter 2013

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    I need some advice on this.
    I am wanting to buy a SCART to Component (YpRpB) conversor and use on my HDTV LCD.
    How do I know if my TV will support all genesis and saturn video modes?
     
  4. Jeilong

    Jeilong Spirited Member

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    I know it's possible to transcode the RGB from a MegaDrive to YPbPr, but I think current TV sets do not accept 240p on component inputs. I check some recent Samsung and Philips sets and they do not list 240p as a supported resolution for component inputs.

    Another thing that seems to confirm this is the behaviour of my XSelect D4 (http://www.micomsoft.co.jp/xselect-d4.htm). If you use a 240p RGB source it will always be transcoded to 480i, causing the display to flicker. I think this is because TV sets generally do not support 240p via component.
     
  5. sonik

    sonik Site Supporter 2013

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    I'm still looking for a cheap way to get better picture quality from my Genesis.

    The game ICO (PS2) runs in 240p.
    I tested it on 3 TVs, both using Component Cables

    LG CRT 480i = Perfect image
    Philips CRT 1080i = No image
    Samsung LCD FullHD = Garbled image (see here)

    Based on these tests, genesis and saturn games will not work on HDTVs too?
     
    Last edited: Sep 24, 2009
  6. MottZilla

    MottZilla Champion of the Forum

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    If you want to get better picture quality for Genesis and Saturn I would recommend you get a nice quality CRT type TV or RGB Monitor. HDTVs will always make these consoles look like ass. I have a 20" cheap CRT TV I bought for like 80 bucks years ago. Composite Video input is as good as you get with it. Still it looks a million times better than hooking up a classic console to a HDTV.

    If you can't get a CRT that supports RGB, but you get one that supports S-Video, for a system like the Genesis you could get a RGB to NTSC transcoder like the JROK used for Arcade JAMMA Supergun projects. You could wire a SCART input to it and get Euro SCART cables to convert the RGB to S-Video. But you may be better off trying to find this XMD device. But then again Genesis will look alright through Composite on a high quality CRT. S-Video would be an improvement but it's not like a HDTV where Composite Video is complete ass, S-Video is just shitty, and RGB or Component is passable. HDTVs just aren't intended for Computer Games and definitely not for older Standard Definition games.
     
  7. Adam

    Adam Active Member

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    RGB transcoders are pretty expensive, really expensive when one can mod a genesis for the cost of an npn transistor, a capacitor, and two resistors. Pin 15 is chroma, solder the positive leg of the cap to it, then a 75 ohm resistor. For luma, solder the B leg of the transistor to pin 16, pin 12 is a nice close by +5volts, and add a 27 ohm resistor on E and your done. Looks just as crisp and nice as anything else, and it costs less than a dollar as radioshack.
     
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