Date   : Thu, 16 Dec 1999 10:17:27 -0000
From   : John Simpson <Simpson.J@...>
Subject: Re: Video output on Master

> The SCART connections are described nicely at
> http://www.par.univie.ac.at/~bob/video/scart/scart.html
> S-video uses the composite pin for luminance, and the red pin for
luminance
> signals.

My TV manual has a similar diagram. 

[Handy explanation of S-Video snipped]

OK - so now I have I third option! (or fourth, if you count the RF
connection).

What you're saying is that the colour-burst information is carried on a
separate pin to the luminance signal therefore avoiding interference between
the two, if I understand correctly. This makes sense, even to a mechanical
engineer :-). 

> Also using S-video will save any worry about compatibility of RGB levels
> (TTL on a BBC, 0.7v max on SCART RGB)

It sounds like a very good idea, as my TV has an S-video port as well. 

> Next time I'm in Maplin, I'll buy a 4 pin mini din socket for my Beeb, and
> report back if I get S-video output working.

I'd be interested to hear about that.