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From: rchampe@hubcap.clemson.edu (Richard Champeaux)
Newsgroups: comp.sys.amiga
Subject: Re: Cables for NEC IIa multisync to A2000
Summary: Gee, now that I read the manual a little closer, maybe you're right.
Keywords: A2000, NEC IIa, cable
Message-ID: <7697@hubcap.clemson.edu>
Date: 18 Jan 90 21:52:12 GMT
References: <935@fs1.ee.ubc.ca> <1990Jan15.052443.23284@ssi3b1.zone1.com> <1990Jan17.172823.13660@santra.uucp>
Organization: Clemson University, Clemson, SC
Lines: 49

In article <1990Jan17.172823.13660@santra.uucp>, ayr@pollux.hut.fi (Ari Yrj|l{) writes:
> In article <1990Jan15.052443.23284@ssi3b1.zone1.com> pselver@ssi3b1.UUCP (Peter Selverstone) writes:
> 
> >The NEC MultiSync 2A is, curiously enough, not a multiscanning monitor.
> >It is a VGA (and Super-VGA) monitor.  It will work fine if you have a
> >flicker fixer board, but it cannot be connected directly to the Amiga.
> 
> 
> That sounds strange. I had no problems connecting NEC Multisync IIA to
> my Amiga. I just made a cable with RGB, sync and ground signals connected
> and everything worked fine.
> 
> If you know what you're talking about then I guess NEC is selling
> different monitor under same name here in Europe...
> 
> 
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I bought my NEC 2A for use with my flicker-fixer and was a little upset when
I discovered that it was only VGA and Super VGA.  I wanted to build or buy
a switchbox like I saw at a store that would allow me to switch either my
flicker-fixer or amiga output to the monitor.  But now that I have reread the
NEC 2A manual, maybe it will work with my Amiga RGB.

This is the paragraph that made me think it was only VGA and Super-VGA:

      The MultiSync 2A, an Intelligent Monitor from NEC, is a high resolution
   color monitor that automatically adjusts or senses multiple scanning
   frequencies generated from graphics adapters.  The MultiSync 2A accepts
   horizontal scan frequences of 31.5kHz and 35kHz and vertical scan 
   frequencies of 56Hz, 60Hz, and 70Hz.

These are VGA and Super-VGA frequencies, as it mentions in the next paragraph.

This next paragraph is the one that now maybe makes me think that it will
support the Amiga RGB:

      As you can see, "design" was the top priority with the MultiSync 2A.
   With the intelligence to support the hardware timings of IBM's VGA and
   MCGA, the MultiSync 2A was  also designed to be compatible with many 
   ^^^^^
   non-IBM boards supporting the Super VGA resolution of 800x600.

Doesn't MCGA operate at 15.? kHz?

Rich Champeaux  (rchampe@hubcap.clemson.edu)