Author Topic: Turbo/PCE/Genesis/SNES RGB to Component Video (YPbPr) Mod Chip Now For Sale!!!  (Read 5909 times)

turbokon

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Hmmm, my genesis doesn't do that. Did you try tweaking the pots? Also could be the TV.


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technozombie

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Here is my order of events:
I wired up the board, and adjusted POTS, everything looked good. I then wired up the audio,resistor for LED(on different 5v feed of course) and then hot glued everything so it would stay in place.

The purple goes away if I adjust until the white turns green, but of course all the colors are off. If the sync was off would that cause something like this?

technozombie

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Turbo here is a guide, if you want more information or pictures or anything just let me know. It's my first time doing a mod like this and doing a guide also. I want it to be good.

https://drive.google.com/file/d/0BzgVE6j9OyMTQ0p2V005MnhSeXM/edit?usp=sharing

turbokon

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Looks good techno:)


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Turbo fan since 1991 after owning my first system.

Check out my website:)
www.tg16pcemods.com

technozombie

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And here is the Snes guide, again if you don't like anything about it or feel its missing some info let me know.
https://drive.google.com/file/d/0BzgVE6j9OyMTX2Ewdlg3X2JpeGc/edit?usp=sharing



thesteve

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A few points
The bleeding is from overdriving the Luma circuit
The color pots should be used to balance the white

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turbokon

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From my experience, here are best setting for the pots:

Genesis:
Rin=5.5kohm
Bin=5.28kohm
Yout=15ohm

SNES:
Rin=5.1kohm
Bin=4.5kohm
Yout=15ohm


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Turbo fan since 1991 after owning my first system.

Check out my website:)
www.tg16pcemods.com

technozombie

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The SNES looks great, the Genesis does too for that matter except for the bleeding. I took a break messing with it, to work on the SNES, I'll look back at it later. Thanks for the input.

thesteve

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The pot settings are not system specific
They are board specific
So once the board is tuned it will be correct for any input.
Increasing the input resistance will reduce bleed

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technozombie

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I wonder if I let some solder overlap past the resistor, I'm new to this kind of stuff and have really learned a lot in taking on this project.

ProfessorProfessorson

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Don't have the patience to read through 8 pages, so just a simple question, have you tried these things on Jamma stuff, and MVS specifically?

turbokon

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Nope professor, I don't have anything like that to try it on. I can send you a couple boards if you want to try it.


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Turbo fan since 1991 after owning my first system.

Check out my website:)
www.tg16pcemods.com

ProfessorProfessorson

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Nope professor, I don't have anything like that to try it on. I can send you a couple boards if you want to try it.


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If you want you can send one and I can try it on a MVS then and let you know. Up to you.

darkgunsou86

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hi did anyone test the board on a Nintendo 64?

technozombie

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hi did anyone test the board on a Nintendo 64?

I know that the N64 doesn't natively support RGB. With the proper modifications the board should work.