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From: bammi@cwruecmp.UUCP (Jwahar R. Bammi)
Newsgroups: net.micro.atari16
Subject: Re: Question on Composite Output
Message-ID: <1466@cwruecmp.UUCP>
Date: Thu, 24-Apr-86 01:03:10 EST
Article-I.D.: cwruecmp.1466
Posted: Thu Apr 24 01:03:10 1986
Date-Received: Sat, 26-Apr-86 03:47:42 EST
References: <1453@homxb.UUCP> <8604222124.AA08626@mitre-bedford.ARPA>
Organization: CWRU Dept. Computer Eng., Cleveland, OH
Lines: 31

> This may help (if you don't soldering):  The TV modulator takes as inputs the
> composite video signal and the audio signal.  If you can figure out which is
> which (e.g. by trying both), you may be able to get a picture on your monitor
> by just bringing this signal out.  However, the level may be wrong so you may
> get less contrast than you want.  If so, you may have to add some
> amplification or pick the signal off at a better spot.
> 
> Good luck and hope it turns out to be simple.
> 
> -John Sangster
> jhs@mitre-bedford.arpa

Interestingly enough, one of the "undocumented features" on the new STs
that have the modulator built in is that pin 2 (two) is composite
video out. The documentation says its Reserved. You can pick up
the ground from either Pin 8 or 13. The problem of course is getting
hold of the connector. If you noticed that the pins (or rather the
holes) are at 0.1" spacing. I took a perf board with 0.1 centers and
stuck wirewrap pins in them, and it fit beautifully into the video
post. You may try molex pins instead that are rounded, but i did'nt
have them handy.




-- 
					Jwahar R. Bammi
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