Help identifying a Japanese Megadrive 2 Revision

Discussion in 'Repair, Restoration, Conservation and Preservation' started by youtoo, Mar 27, 2012.

  1. youtoo

    youtoo Rapidly Rising Member

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    Here are the pics:
    IMG_2238.JPG
    IMG_2245.JPG

    I've been researching online, and they only talk about 2 revisions: one with the metal plate covering the whole bottom (VA0 to VA2.3, bad sound), and another one with a gap (VA3/4, good sound)... well, as you can see in my pics, my MD2 doesn't even have a metal plate! :)

    http://www.sega-16.com/forum/showth...-good-Genesis-1s-and-Genesis-2s-from-bad-ones

    (btw, I'd ask at sega-16.com, but I've been waiting for the moderator's registration approval for months now!)

    Genesis 2 Revisions VA0 to VA2.3 http://img198.imageshack.us/img198/8219/genesis2va0va23.jpg

    Genesis 2 Revisions VA3, VA4 http://img16.imageshack.us/img16/8452/genesis2va3andva4mother.jpg

    Just FYI, I bought the MD2 myself in Akihabara, in Japan a few months ago, so it's not one of the ASIAN or ASIAN-PAL models.

    Thanks!
     
  2. Shinebi

    Shinebi Dauntless Member

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    Last edited: Mar 27, 2012
  3. TmEE

    TmEE Peppy Member

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    It seems original to me from the bits of PCB I can see from the vents, but a shot of insides will tell it for sure.
     
  4. youtoo

    youtoo Rapidly Rising Member

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    I'll try to get some shots soon...
     
  5. Tokimemofan

    Tokimemofan Dauntless Member

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    My Mega Drive 1 lacks either metal plate, the MD2s are probably the same. I think it has to do with FCC regulations here in the states just like those metal plates in the CD and 32x.
     
  6. l_oliveira

    l_oliveira Officer at Arms

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    Asian and Japanese consoles did not have strict requirements at that time. Nintendo had shielding on it's Super Famicom only because it (voluntarily) joined the VCCI (Voluntary Control Council for Interference by Information Technology Equipment) in 1988.

    SEGA didn't so no shielding on their stuff.
     
    Last edited: Mar 30, 2012
  7. bart_simpson

    bart_simpson Dauntless Member

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    Japan Sega mega drive 2 i hate the metel plates as i find on some that rust.
     
  8. youtoo

    youtoo Rapidly Rising Member

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    IMG_2247.jpg
    IMG_2249.jpg
    IMG_2250.jpg

    Here you go...
     
  9. l_oliveira

    l_oliveira Officer at Arms

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    I am sure that with this awesome view of it's innards even the OP have no doubt that it's a legitimate SEGA unit. :)
     
  10. youtoo

    youtoo Rapidly Rising Member

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    Personally I never had any doubt about it! :D I mean, I bought it by myself in one of the biggest shops in Akihabara.

    Now let's see if anyone can tell me with motherboard revision is this...
     
  11. l_oliveira

    l_oliveira Officer at Arms

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    It's printed on the board.

    "VA1"
     
  12. youtoo

    youtoo Rapidly Rising Member

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  13. youtoo

    youtoo Rapidly Rising Member

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    LOL, true! Great detective skills! :)
     
  14. l_oliveira

    l_oliveira Officer at Arms

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    It's based on other people's opinions. You don't need to believe what other people says. Some of the people on these forums are "audiophile freaks" so don't take what they say exactly.

    For me the sound of such machines are perfectly fine. ;)
     

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