[Coco] Composite Video

[billg999 at cs.uofs.edu]

> Did you try the RF ? Serious, take a rca to F connector and use a cable
> coax tv and plug it into the antenna/cable in of any TV. Check if there is
> signal on channel 3 or 4.

Not sure I have anything that can do analog TV anymore.  I guess
that was one facet of the forced changeover the government failed
to take into account.  :-)

bill

>
> Also, using a cable like this the image is pretty good.
>
>
> On Wed, Aug 14, 2013 at 1:14 PM, <billg999 at cs.uofs.edu> wrote:
>
>> > I didn't have any problem hooking my Coco3 on my Sony Bravia LCD TV or
>> my
>> > Dell 2001 LCD monitor with composite input or a Coby 17" TV LCD.
>>
>> Hmmm....  And that brings me back to the possibility that time has
>> made some component drift out of spec and it is just my COCO3 that
>> has this problem.  I wonder if I have another COCO3 in one of those
>> boxes in storage that still works?  (I know there is one that is dead
>> but if people here are right it may be as simple as a new CPU, of which
>> I have a few, to make it work again.  Oh yeah, and the time to do it.)
>>
>>
>>
>> bill
>>
>> >
>> > I do have problems with the 2 transistor drive use on old cocos1. Some
>> TVs
>> > don't like it.
>> >
>> >
>> > On Wed, Aug 14, 2013 at 12:55 PM, <billg999 at cs.uofs.edu> wrote:
>> >
>> >> > CoCo 1 & 2s need an adapter for composite output.  Their standard
>> >> output
>> >> > is
>> >> > analog RF for TV channel 3 or 4 (or was that 2 and 3?)  I have not
>> had
>> >> any
>> >> > issues with the CoCo 3 composite output into a composite monitor of
>> >> the
>> >> > same
>> >> > vintage.
>> >>
>> >> Of the same vintage, that is the problem.  I guess I made the mistake
>> >> of assuming "NTSC composite video" actually was some kind of
>> standard.
>> >> Looks like it is back to the drawing board as I don't see many
>> monitors
>> >> "of the same vintage" being offered today.  Is there anywhere I can
>> find
>> >> out just what the COCO3 does different from other NTSC Composite
>> Videos?
>> >> Is it something as simple as levels? Or are we talking about wacked
>> out
>> >> waveforms and timing issues?  I was utterly amazed at how crisp and
>> >> clean
>> >> the Apple2 output is on a modern technology monitor.  Surely we can
>> do
>> >> the same.
>> >>
>> >> bill
>> >>
>> >>
>> >>
>> >> --
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>> >> Coco at maltedmedia.com
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>> >>
>> >
>> >
>> >
>> > --
>> > Long live the CoCo
>> >
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>> >
>>
>>
>>
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>
>
>
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>
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