[Coco] is there any existing 6847 output to RGB ? (for coco2)

[Daniel Campos]

For CoCo1/2 it's much more easier to make an s-video output. The image 
quality is almost as good as RGB.

Daniel

On 19/02/2015 18:29, Luis Antoniosi (CoCoDemus) wrote:
> No it's pure analog. It just does the color conversion.
>
> I didn't get into making the rgb2vga to understand the YCbCr. I'm too lazy
> to build a driver.
>
> Luis Felipe Antoniosi
>
>
>
> On Thu, Feb 19, 2015 at 3:27 PM, Zippster <zippster278 at gmail.com> wrote:
>
>> Yes, if it’s just a bunch of transistors (no comparators or adc) then it
>> must be mixing the component signals to RGB while keeping it all analog.
>>
>> I’m working on one (Digitize —> RGB —> DAC —> VGA) but have a way to go
>> yet.
>>
>> - Ed
>>
>>
>>> On Feb 19, 2015, at 2:16 PM, Luis Antoniosi (CoCoDemus) <
>> retrocanada76 at gmail.com> wrote:
>>> Well I do have a coco2 peritel with a RGB output for SCART TVs. It does
>>> everything on transistors, actually a transistor plantation...
>>>
>>> I think it does a YCbCr -> RGB conversion. The VDG outputs YCbCr.
>>>
>>>
>>> Luis Felipe Antoniosi
>>>
>>>
>>>
>>> On Thu, Feb 19, 2015 at 3:04 PM, didier derny <didier at aida.org> wrote:
>>>
>>>> Is there any existing 6847 output to  rgb board / schematics
>>>>
>>>>
>>>>
>>>> I've just seen the pinout of a RGB video connector
>>>>
>>>> But the video in the machine is done by a 6847
>>>>
>>>>
>>>>
>>>> The schematics are hard to read  and there are a lot of transistors
>>>>
>>>> Between the video signal on the 6847 and the connector.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
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