[Coco] 6847 Video (newbie question)

[didier derny]

In fact it was a problem with the breadboard (a stupid bad contact)

http://6809.eu/ypbpr2.jpg

I'll try to find a color test...

I find the black really good compared to composite 
With the composite the letter S looks a little bit like 8

I don’t find the colors ok, "too clear"
(looks better on the image, that it really is)

--
Didier



-----Message d'origine-----
De : Coco [mailto:coco-bounces at maltedmedia.com] De la part de Luis Antoniosi (CoCoDemus)
Envoyé : mardi 4 novembre 2014 23:15
À : CoCoList for Color Computer Enthusiasts
Objet : Re: [Coco] 6847 Video (newbie question)

Inverted transistor ? Did you check the datasheet ? They change EBC pins from vendor to vendor.


Luis Felipe Antoniosi



On Tue, Nov 4, 2014 at 5:11 PM, didier derny <didier at aida.org> wrote:

> This is what I get, I have an image but obviously I have a problem
>
> This is the 3 signals   Y + PB + PR
> http://6809.eu/ypbpr.jpg
>
> I tried with only Y connected  (I expected a black and white image) 
> http://6809.eu/y.jpg
>
> It's connected to a GBS 8220
>
> --
> Didier
>
>
>
> -----Message d'origine-----
> De : Coco [mailto:coco-bounces at maltedmedia.com] De la part de Luis 
> Antoniosi
> (CoCoDemus)
> Envoyé : vendredi 31 octobre 2014 22:04 À : CoCoList for Color 
> Computer Enthusiasts Objet : Re: [Coco] 6847 Video (newbie question)
>
> It works, but you need to make a driver:
>
> https://pbs.twimg.com/media/BCb7-hoCEAAJm22.jpg:large
>
> When I used my it suffered from severe jumps time to time. maybe you 
> have better luck and a better board.
>
>
> Luis Felipe Antoniosi
>
>
>
> On Fri, Oct 31, 2014 at 3:58 PM, didier derny <didier at aida.org> wrote:
>
> > I just received a GBS 8220 and I was wondering if the YPBPR entries 
> > of the GBS 8220
> >
> > Were compatible with the Y phiA phiB of the 6847 ?
> >
> >
> >
> > Are they the same signal with another name or something different ?
> >
> >
> >
> > Not really understood fig 10 of the 6847 datasheet
> >
> >
> >
> > I often used composite or rgb but never  YPBPR or the signal of the
> > 6847
> >
> >
> >
> > Any idea ?
> >
> >
> >
> > Thanks
> >
> >
> >
> >
> >
> > --
> >
> > Didier
> >
> >
> >
> >
> >
> >
> > --
> > Coco mailing list
> > Coco at maltedmedia.com
> > https://pairlist5.pair.net/mailman/listinfo/coco
> >
>
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>
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