[Coco] Re: [Color Computer] Re: TRS-80 CoCo Group Color Computer Composite Video - Compared to "modern" composite - I don't get it

[Matías Gutiérrez Reto]

You have to connect to the ANTENNA, not the video in. 
Note that it has a 
channel 3/4 switch - the TV has to be set to the same 
channel. You may need 
an adaptor plug, but you can't use the RF modulator - 
return it.

(Other lists - copy this guy please, he's only on 
TRS80CoCo at yahoogroups.com )

Neil

----- Original Message ----- 
From: "benwillis" <benwillis at verizon.net>


> Hello, I'm new to this board and hope that there's 
somebody out
> there who can help me understand something.
>
> I've loved the Coco for years, used one in college 
back in the early
> 80's for my degree. It was cool to hookup to the 
TV, had a 300 baud
> modem, cassette drive, loved it, but always had 
screen interference
> problems with the RF modulator. Oh well.
>
> Now I've purchased one on eBay, even got a floppy 
drive (I just had
> cassette in college, couldn't afford the $500 
drive!).
>
> Anyway, I want to hook it up, and get a good 
picture. Bought an RF
> modulator, disappointing to say, it still has a 
crappy picture.
>
> Then I was wondering - the Coco (this is a Coco 2) 
has a composite
> video out, but what confuses me is it has _both_ 
video and audio
> over one cable. Newer TV's with composite input have 
just the video
> on the composite cable, and the sound is separate. 
Plus if I plug
> the composite from the Coco into the TV composite 
input, it (of
> course) doesn't work.
>
> What I don't get is, why doesn't it work? Why is the 
sound/video
> together on the Coco composite, but separate on 
"modern" TV's? Is
> it possible to separate the 2 somehow and plug 
directly into a TV
> without an A/B switch? All I want is to display the 
video crisp and
> sharp and also have sound. Should I just buy a Coco 
monitor?
>
> Any advice on improving the Coco picture, and making 
it work well
> with a TV, would be appreciated.
>
> Thanks,
> Ben



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