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Posting-Version: version B 2.10.2 9/18/84; site masscomp.UUCP
Path: utzoo!watmath!clyde!bonnie!masscomp!garyo
From: garyo@masscomp.UUCP (Gary Oberbrunner)
Newsgroups: net.micro.amiga
Subject: Re: Monitor stuff...
Message-ID: <830@masscomp.UUCP>
Date: Tue, 12-Nov-85 13:36:08 EST
Article-I.D.: masscomp.830
Posted: Tue Nov 12 13:36:08 1985
Date-Received: Wed, 13-Nov-85 07:50:20 EST
References: <407@caip.RUTGERS.EDU>
Reply-To: garyo@masscomp.UUCP (Gary Oberbrunner)
Organization: Masscomp - Westford, MA
Lines: 32
Keywords: video, DB23, DB25, rgb
Summary: DB23
Word-Of-The-Day: Demoniacal
Insult-Of-The-Day: I blow my nose in your general direction

>	4) Where can I get a DB23 and what is that connector on the
>	Sony called?

I'm using an old Aydin Controls rgb monitor on my Amiga, and I had a similar
problem when I tried to hook it up.  There are NO DB23 connnectors on the
market.  According to the guy at You-Do-It Electronics, Commodore may pull the
stunt that IBM used when they introduced their monitor, which was to get an
exclusive license from AMP (#1 big connector company) so that only IBM could
buy those connectors, and thus you could only get 'em from Big Blue.

Hopefully Commodore won't do this.

But in the meantime, how do you get into that connector on the back of the
Amiga?  I did it by taking a standard female DB-25 and hacksawing off the
end.  Then I connected the 3 video lines plus sync to that, and put BNC's
on the other end.  This works fine.  One hint is not to hacksaw the ENTIRE
connector through, just the part that goes into the connector on the Amiga.
This will make the connection much more stable.  I now think that if I'd
mounted the 'DB23' that I made to a wirewrap board and wired it to 4 BNC's
(on the same WW board) and then just used standard BNC cables from there
to the monitor it would have been a little more robust physically.

Oh - don't forget that when you hack off the end of the DB25, the pin numbering
changes on the bottom (hi-numbered) half.  I forgot this and grounded the
Video Clock Out from the Amiga.  The monitor blitzed out, but no damage was
done.  I fixed the connector and I was back in business.  Good job Amiga!

	Gary Oberbrunner	...{harvard,ihnp4}!masscomp!garyo

"You have to run as fast as you can to stay in the same place here -
 you have to run at least TWICE that fast to get anywhere."
	(Apologies to Lewis Carroll)