[Coco] CoCo 3 RGB to SCART video, then converted to HDMI

[Michael Rowen]

Sorry, worked from my computer, but not my phone. Link good - phone bad! :) Thanks for the info.







Matthew Stock <stock at bexkat.com> wrote:

>Really?  I was literally at the site a moment ago.
>
>If you still have issues I'll scrape the useful content and repost.
>
>Matt
>
>On Thu, Apr 30, 2015 at 10:06 AM, Michael Rowen <mike at borncoco.com> wrote:
>
>> Dead link unfortunately.
>>
>>
>>
>>
>>
>>
>>
>> Matthew Stock <stock at bexkat.com> wrote:
>>
>> >I've mentioned this a few times in the past, but this guy has a simple
>> >composite sync schematic on this page
>> >http://www.epanorama.net/circuits/vga2rgbs.html.  I've used it with a
>> >knockoff CGA to VGA adaptor and it worked well.
>> >
>> >Matt
>> >
>> >
>> >On Thu, Apr 30, 2015 at 9:54 AM, CoCo Demus <retrocanada76 at gmail.com>
>> wrote:
>> >
>> >> A NOR gate will result in VSYNC without serration, for instance the
>> LM1881
>> >> cannot separate it without adjusting the resistor.
>> >>
>> >> I would try a XNOR instead.
>> >>
>> >> On Thu, Apr 30, 2015 at 9:49 AM, Michael Rowen <mike at borncoco.com>
>> wrote:
>> >>
>> >> > I would think the coco RGB vertical/horizontal (pins 8 &9) inverted
>> >> > through a 74LS02 (Nor gate) would work to the sync line on the scart.
>> >> This
>> >> > is very cool. I'm going to try this myself.
>> >> >
>> >> > This device also converts composite to HDMI. With Ed's awesome
>> composite
>> >> > boards for the Coco2, might do a decent job for a Coco2 as well.
>> >> >
>> >> > I found several YouTube vids for this same device used with various
>> >> gaming
>> >> > consoles via scart. Just search for scart.
>> >> >
>> >> > -Mike
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > --
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>> >> >
>> >>
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>
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