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From: jm@tekadg.UUCP (Jeff Mizener)
Newsgroups: net.micro.pc
Subject: monochrome monitor to rgb connection question
Message-ID: <51@tekadg.UUCP>
Date: Mon, 5-Nov-84 13:05:51 EST
Article-I.D.: tekadg.51
Posted: Mon Nov  5 13:05:51 1984
Date-Received: Thu, 8-Nov-84 00:19:48 EST
Organization: Tektronix, Beaverton OR
Lines: 37

[]

I tell ya, I got soooo many questions.  Just wish I had some answers...

Problem:  I dislike looking at the text characters on my amdek 300a 
	when connected to my ibm color/graphics card.  But setting the
	6845 crt controller to interlace mode smears the picture.
	I assmue that this is because the amdek has insufficient bandwidth
	to accomodate the interlaced signal (or maybe it's the cable
	playing low-pass filter).

Proposal:  Connect an ibm direct drive monochrome monitor to the RGB output
	of the color card.  Then set the 6845 to interlace mode and see what
	happens.

Question:  Am I gonna blow up the whole mess?  Around here, technical info
	is scarce (odd as that may seem), and ibm doesn't fill in all the
	blanks in my mind with what they do say.  The very minimum I would
	say is that I need to make a new cable.  Then I may have to invert
	one of the outputs (maybe in software?).

I'm afraid my name ain't Mr. Video, so this one goes out to you all.

Next Subject:  What We Need is a library of "Patches, Hints And Kinks" for
	the PC user.  It would save re-inventing the wheel over and over,
	and make hacking (and I use that term advisedly) less fustrating.
	This is the sort of thing that would go in the file.  As would 
	solutions to the "reset memory size after startup" and 
	"reset button" problems...
	Comments?

	Jeff Mizener / Tektronix Portables ADG / Beaverton OR

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