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 RGB NES / Famicom s-video upgrade

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Drakon
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PostSubject: RGB NES / Famicom s-video upgrade   Sat Jan 26, 2013 6:51 pm

I've come up with a number of tweaks for the s-video circuit on the upgrade kit. The most popular tweak is upgrading the video encoder to the sony cxa2075 which produces sharper s-video with (in my opinion) better looking colours. I built a circuit that divides the system master clock signal down to drive the video encoder removing any colour bleeding. Also recently I found that adding a stronger resistor on chroma gets rid of this strange interference I was experiencing. Here's how it currently looks on my tv:





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AlecRob
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PostSubject: Re: RGB NES / Famicom s-video upgrade   Sat Jan 26, 2013 9:44 pm

that looks great! applaud

Almost like RGB. thumbs up
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PostSubject: Re: RGB NES / Famicom s-video upgrade   Sat Jan 26, 2013 10:26 pm

AlecRob wrote:
that looks great! applaud

Almost like RGB. thumbs up

It looks just as good as rgb will trust me.
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AlecRob
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PostSubject: Re: RGB NES / Famicom s-video upgrade   Sat Jan 26, 2013 10:32 pm

Drakon wrote:
AlecRob wrote:
that looks great! applaud

Almost like RGB. thumbs up

It looks just as good as rgb will trust me.
You should try improving the svideo quality on other systems, such as the Saturn or playstation.
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PostSubject: Re: RGB NES / Famicom s-video upgrade   Sun Jan 27, 2013 2:30 am

AlecRob wrote:
Drakon wrote:
AlecRob wrote:
that looks great! applaud

Almost like RGB. thumbs up

It looks just as good as rgb will trust me.
You should try improving the svideo quality on other systems, such as the Saturn or playstation.

I only do it for systems I care about. The saturn I do care about but not enough to bother with it. Right now I'm busy teaching myself how to romhack a rom file and translate it from japanese to english.
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