Xref: utzoo comp.sys.amiga:17751 comp.graphics:2278
Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!decwrl!pyramid!octopus!avsd!ado
From: ado@avsd.UUCP (ado)
Newsgroups: comp.sys.amiga,comp.graphics
Subject: Re: How to get video signal from MacII?
Message-ID: <108@avsd.UUCP>
Date: 16 Apr 88 00:45:12 GMT
References: <3994@sphinx.uchicago.edu>
Organization: Ampex Advanced Technology Division, Redwood City, CA
Lines: 27

in article <3994@sphinx.uchicago.edu>, cute@sphinx.uchicago.edu (John Robert Cavallino) says:
> Xref: octopus comp.sys.amiga:6002 comp.graphics:2460
> 
> There have been several postings in reponse to a query for info. about
> obtaining NTSC video from a Mac II.  One poster referred the questioner to
> previous articles containing the neccessary code.  Said poster called this a 
> "software" method.  Leo Schwab then flamed back about the absurd difficulty
> of doing this in software when it's built into the Amiga.  What has been
> unclearly stated is that the "software" method on the Mac II is nothing more
> than reprogramming some control registers on the standard video card.  Poking
> the correct values causes the card to output an NTSC-compatable signal directly.
> 
> 	JohnC
> 
> -- 
> ...ihnp4!gargoyle!sphinx!cute           --John Cavallino
> 
> 	The train is the same, only the time is changed.
> 	Ecce homo, ergo elk.

	Please note that a black and white signal is not a NTSC signal.
	To be NTSC it must contain color information. A black and white
	signal that can be displayed on a standard monitor is RS-170.
			jan louis christensen

	---
	 My employer would most likely agree!