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Thread: Genesis Color issue

  1. #1
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    Genesis Color issue

    Hey all,

    My personal J-Genny has some color issues..

    Here's a normal picture:



    Here's mine:



    Again, here's a NORMAL one:



    And here's mine:



    I've tried pulling the video from the 315-5313 as well as the normal location:



    One day it was working, then it wasn't.. it's possible that one of the resistors needs to be replaced..

    any help would be appreciated.
    Last edited by Lemony Vengeance; 12-29-2013 at 01:41 AM.
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    Here's the pic from the schematics:



    The pic above shows that it is soldered to the non VCC side of the RGB lines (with the arrows ).

    I'll have to rewire a jamma edge to it to check it out since it's been some time since I checked it out. I checked out each color individually and they all display so it's not like a color is dead.
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    It looks like your R line is hotter than the other two. Is this a JAMMAfied Genesis? If so, have you checked to see what the RGB lines coming out of the video port look like with a normal Genny RGB cable?

    Since you have a resistor on that R line, I'd try changing that out and see if it helps.


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  6. #6
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    Here's what the colors look like on their own:

    Red:


    Green:


    Blue:

    (if it doesn't show up: http://img.photobucket.com/albums/v2...ps2eca9a56.jpg)

    This is with C-sync pulled from pin 20 of the encoder. I'm going to wire up a LM1881N Circuit to C-vid and give this a shot as well to rule out any sync issues.
    Last edited by Lemony Vengeance; 12-29-2013 at 03:46 AM.
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  7. #7
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    Just checks with the lm 1881n as well as pulling c-sync directly from the 315-5313 (pin 42, I believe) and no change, so its not a sync issue.
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    Can't see the blue but the green looks off to me.
    thank you,
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  9. #9
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    Quote Originally Posted by Mitsurugi-w View Post
    Can't see the blue but the green looks off to me.
    I agree, the greens looks weak, which is why the white appears purple ( red + blue = purple)

  10. #10
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    Quote Originally Posted by codecrank View Post
    I agree, the greens looks weak, which is why the white appears purple ( red + blue = purple)
    agreed. any ideas on how to fix it?
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  11. #11
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    Adjustable pots for the red,green, and blue so you can tune to each monitor?



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