[Coco] CoCo 2 Factory Composite Video RE'd

[Zippster]

The board handles the audio as well.  The connector jack has 3 conductors, video, audio and ground.
The cable will have RCA plugs on one end and a 1/8” plug on the other.  You’ll sometimes see these
for use with video cameras, etc.  A simple stereo headphone plug to RCA would work as well as you only
have 2 signals, monaural sound and composite video.

It’s the same connector style found on the factory board.

- Ed


> On Dec 14, 2014, at 6:17 PM, Chad H <chadbh74 at hotmail.com> wrote:
> 
> Hey, im curius, I know my RF on my CoCo 2 provides audio as well..but this is done away with on the mod...so what provides audio?  I dont remember composite video doing that.  I remember using seperaye red/white RCA patches for L/R audio channels when doing this with old VCR's and DVD players.
> Sent from my Galaxy S4
> 
> -------- Original Message --------
> From: Zippster <zippster278 at gmail.com>
> Sent: Sunday, December 14, 2014 11:10 AM
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> Subject: Re: [Coco] CoCo 2 Factory Composite Video RE'd
> 
> The color mode on this board is pretty darn good even on a large LCD TV.
> The B&W mode is super clear on the same TV.
> 
> I added a couple of pics of the output on a 46” LCD TV.
> Of course on a CRT it’s perfect, But this pretty darn good for composite on a big LCD.
> 
> Not the best pics, but gives you an idea.
> 
> <https://sites.google.com/site/thezippsterzone/coco2-composite-board-2 <https://sites.google.com/site/thezippsterzone/coco2-composite-board-2>>
> 
> - Ed
> 
> 
>> On Dec 14, 2014, at 9:39 AM, David Ladd <dladd at realmspire.com> wrote:
>> 
>> Zippster, Thank you :D  The HD TV's that my family has and the one I
>> personally own the tuners still support analog as well as the ATSC
>> digital.  The thing is the green is super over powering and can't
>> hardly read the black text lol.  So I figure the composit might be
>> better :D  Plus this would allow me to use the Playstation One's
>> composit monitor too or a car backup camera display panel :D
>> --
>> David Ladd
>> --
>> 
>> 
>> 
>> On Sun, Dec 14, 2014 at 9:03 AM, Zippster <zippster278 at gmail.com> wrote:
>>> Hi David,
>>> 
>>> I can definitely do that.  :)
>>> 
>>> - Ed
>>> 
>>>> On Dec 14, 2014, at 1:24 AM, David Ladd <dladd at realmspire.com> wrote:
>>>> 
>>>> You know you should sell these boards for those of us who have CoCo2's
>>>> that don't want to build their own :D  I would love to have a Composit
>>>> replacement for the RF modulator. :D  *hint hint*
>>>> 
>>>> 
>>>> --
>>>> David Ladd
>>>> --
>>>> 
>>>> 
>>>> 
>>>> On Sat, Dec 13, 2014 at 11:27 PM, Zippster <zippster278 at gmail.com> wrote:
>>>>> Hi Everybody,
>>>>> 
>>>>> I’ve successfully reverse-engineered the factory composite board found in
>>>>> a CoCo 2 I purchased on ebay.  This board is a direct replacement for the RF modulator.
>>>>> It requires no modifications to the case, and uses the channel switch to select B&W or COLOR.
>>>>> 
>>>>> It seems to have very good output - I’d say better than the reference circuit from the 6847 data sheet.
>>>>> It’s a more involved circuit with voltage regulators on-board and is AC coupled.
>>>>> 
>>>>> Pics of the factory and re’d prototype can be seen here for those who are interested.
>>>>> 
>>>>> <https://sites.google.com/site/thezippsterzone/coco2-composite-board-2 <https://sites.google.com/site/thezippsterzone/coco2-composite-board-2>>
>>>>> 
>>>>> 
>>>>> - Ed
>>>>> 
>>>>> --
>>>>> Coco mailing list
>>>>> Coco at maltedmedia.com
>>>>> https://pairlist5.pair.net/mailman/listinfo/coco
>>>> 
>>>> --
>>>> Coco mailing list
>>>> Coco at maltedmedia.com
>>>> https://pairlist5.pair.net/mailman/listinfo/coco
>>> 
>>> 
>>> --
>>> Coco mailing list
>>> Coco at maltedmedia.com
>>> https://pairlist5.pair.net/mailman/listinfo/coco
>> 
>> --
>> Coco mailing list
>> Coco at maltedmedia.com
>> https://pairlist5.pair.net/mailman/listinfo/coco
> 
> 
> --
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco
> 
> -- 
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco