[Coco] CoCo 2 Factory Composite Video RE'd

[Louis Ciotti]

Ed,

Depending on the timing of a run of these converters, I would be willing to
assemble some kits if you need help.

Lou

On Mon, Dec 15, 2014 at 9:02 AM, Tom Seagrove <tjseagrove at writeme.com>
wrote:
>
> I will open it up tonight and get some pictures...
>
>
> On Dec 15, 2014, at 8:07 AM, Kip Koon <computerdoc at sc.rr.com> wrote:
>
> Tom,
> What kind 512KB PCB is in your Coco 2?
>
> Kip Koon
> computerdoc at sc.rr.com
> http://www.cocopedia.com/wiki/index.php/Kip_Koon
>
>
>
> -----Original Message-----
> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Tom Seagrove
> Sent: Sunday, December 14, 2014 7:31 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] CoCo 2 Factory Composite Video RE'd
>
> I have a CoCo 2 someone modded with a similar board installed. It has 2
> RCA cables coming out the back for audio and video.  There is also a switch
> on the front to turn on and off 512K memory.  A non standard keyboard is
> installed as well.
>
> Tom
>
>
> On Dec 14, 2014, at 7:17 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-boar
> >>>> d-2
> >>>> <https://sites.google.com/site/thezippsterzone/coco2-composite-boar
> >>>> d-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
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> >
> > --
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>
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