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

[Dave Philipsen]

Link worked for me.



On 4/30/2015 9:06 AM, Michael Rowen wrote:
> Dead link unfortunately.
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> 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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