Genesis Color issue

Lemony Vengeance

Mitt Romney's Hairdresser,
Joined
Jan 30, 2012
Posts
4,204
Hey all,

My personal J-Genny has some color issues..

Here's a normal picture:

temporary_zpsb42f7509.jpg


Here's mine:

temporary_zps53e4eedd.jpg


Again, here's a NORMAL one:

temporary_zps16922d8f.jpg


And here's mine:

temporary_zps72f1da1a.jpg


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

attachment.php


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. :D
 
Last edited:

Lemony Vengeance

Mitt Romney's Hairdresser,
Joined
Jan 30, 2012
Posts
4,204
Here's the pic from the schematics:

2013-12-28_2347.png


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.
 

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,748
If the levels are all even then it would be the sync.
 

Jibbajaba

Ralfredacc's Worst Nightmare
10 Year Member
Joined
Apr 30, 2009
Posts
5,611
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.
 

Lemony Vengeance

Mitt Romney's Hairdresser,
Joined
Jan 30, 2012
Posts
4,204
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.
 

Dion

Known Scammer, NeoGeoFreak Co-Founder
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Aug 24, 2000
Posts
2,070
Can't see the blue but the green looks off to me.
 

skinny503

NAM-75 Vet
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Sep 22, 2013
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Adjustable pots for the red,green, and blue so you can tune to each monitor?
 
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