[Coco] Another rare brazilian coco clone...

[Luis Fernández]

Is there a problem if left paused for 1 hour?
while the video is paused or turned off everything?


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> Date: Mon, 28 Jan 2013 00:10:38 -0200
> From: jccyc1965 at gmail.com
> To: coco at maltedmedia.com
> Subject: Re: [Coco] Another rare brazilian coco clone...
> 
> Jason Law of the FB CoCo group gave us the scoop of how that works.
> It's a ridiculously easy hack:
> http://users.vialink.com.br/jcastro/CoCo_Pause_Switch.pdf
> 
> On Sun, Jan 27, 2013 at 11:35 PM, Luis Fernández <luis46coco at hotmail.com> wrote:
> > HiSaw that has a pause button, or switch
> >
> >> Date: Sun, 27 Jan 2013 23:55:27 -0200
> >> From: daniel.campus at gmail.com
> >> To: coco at maltedmedia.com
> >> Subject: Re: [Coco] Another rare brazilian coco clone...
> >>
> >> Hi Dennis,
> >>
> >> The circuit I used is based on the schematic present at page 12 of the
> >> MC6847 datasheet:
> >>
> >> http://people.ece.cornell.edu/land/courses/ece4760/ideas/mc6847.pdf
> >>
> >> In the place of the 3.9K and 3.3K resistors, I changed both for 10K
> >> resistors. The 470 Ohms resistor I removed. In the place of the 560 Ohm
> >> resistor I put a 1K trimpot for fine tunning.
> >> On mine I also put two trimpots in pulldown on both B-Y and R-Y lines
> >> that come from 6847 to 1372. It helps both to regulate colors and
> >> decrease color saturation.
> >> All else remains exactly the same as on the datasheet.
> >>
> >> I used this formula on both MX-1600 and on the Color64, another Coco
> >> clone I have:
> >>
> >> https://picasaweb.google.com/109345699838454178536/LZColor64#
> >>
> >> Regards,
> >> Daniel
> >>
> >> Em 27/01/2013 23:25, Denis Bisson escreveu:
> >> > Daniel Campos <daniel.campus at ...> writes:
> >> > ...
> >> >> Last week I acquired another rare brazilian coco clone, the Dynacom MX-1600.
> >> >> https://picasaweb.google.com/109345699838454178536/DynacomMX1600
> >> >> It came on bad shape and not working, but after some work, it's fully
> >> >> functional again.
> >> > ...
> >> >
> >> >    Hi!
> >> >
> >> >    Nice picture and work!
> >> >
> >> > May I asked you if you could share with me the MC1472 circuit you made?
> >> >
> >> > I've already made something like that two times in the past to convert regular
> >> > COCO to provide NTSC signal directly. But according to your picture, you have
> >> > much more potentiometers than the application note I am using for that patch.
> >> > I would be curious to use your circuit as your picture seems to show a better
> >> > result.
> >> >
> >> > Thanks.
> >> >
> >> > Dennis.
> >> >
> >> >
> >> >
> >> > --
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> >>
> >>
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> >
> >
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