Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!amdcad!ames!think!husc6!cca!mirror!datacube!dje
From: dje@datacube.UUCP
Newsgroups: comp.graphics
Subject: Re: Wanted VGA and monitor recommendati
Message-ID: <102300022@datacube>
Date: 12 Feb 88 15:46:00 GMT
References: <6932@agate.BERKELEY.EDU>
Lines: 22
Nf-ID: #R:agate.BERKELEY.EDU:-693200:datacube:102300022:000:969
Nf-From: datacube.UUCP!dje    Feb 12 10:46:00 1988


Please excuse the tangent:

A  note on  the early  NEC Multisync  monitors.   They do  not do 2:1
interlaced (like RS-170 or NTSC).   Ever.   We have  many around here
for EGA Applications.  When we tried to drive RS-170  RGB analog from
a frame buffer into it, it overlaid one  field over  the other giving
an apparent 1/2 the number of lines.  

This surprised me because monitors  usually just  squirt the Vertical
sync into a sweep circuit so it just naturally syncs to what you feed
in.  Apparently the Multisync  re-synchronizes the  VSYNC with HSYNC.
Oh well.  Silly me for expecting a  monitor called  'Multisync' to be
able to deal with RS-170, the most  common of  all signals.   I don't
know about the Multisync IIs though.  

 				Dave Erickson
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