Neo Geo bad video (green)

DaisyAge

DaisyAge

Galford's Armourer
Joined
Jun 10, 2018
Posts
457
So an update: I hooked up the MV1B to a sync cleaner which completely wiped out the video so I nixed that quick. The next thing I got was this, a red screen with accurate color squares. I currently can't get a unibios (at least until the end of the month) but what could cause the back ground to be completely red instead of black? adjusting the pots on the JROK didn't help, by the time the background was black the red square was almost gone.received_296302437704168.jpegreceived_2249897625031744.jpeg
 

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Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,750
Try turning down the brightness on the Tv Itself, in fact, put it at default values.
 
DaisyAge

DaisyAge

Galford's Armourer
Joined
Jun 10, 2018
Posts
457
My values are as follows:
R61- 225 OHMS
R60- 459 OHMS
R59- 1.016 KILO OHMS
R58- 2.16 KILO OHMS
R65- 2.12 KILO OHMS
R66- 1.003 KILO OHMS
R67- 456 OHMS
R68- 227 OHMS
R75- 228 OHMS
R74- 456 OHMS
R73- 1.019 KILO OHMS
R72- 2.14 KILO OHMS
 
Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,750
I’d try a different encoder as it really seems like it’s the encoder. If you want, you can send me the encoder and I can test it here and tell you if it is or not.
 
DaisyAge

DaisyAge

Galford's Armourer
Joined
Jun 10, 2018
Posts
457
So an update: Now a consolized MV1FZS is giving me the same green shit in my white color space. But I have found an unlikely solution. Svideo works fine and so will component... As long as the svideo cable is connected too. Take that out and were back to green. I have no idea what is going on but my tv doesn't have an svideo port so I'm still stuck with green picture. I also tried to tie the Y signal from svideo to the Y on component out and it made the green a little brighter but no fix. Any ideas?
 
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