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

[Michael Rowen]

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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