Path: utzoo!attcan!uunet!seismo!sundc!pitstop!sun!decwrl!labrea!eos!ames!amdahl!pacbell!lll-tis!oodis01!uplherc!esunix!blgardne
From: blgardne@esunix.UUCP (Blaine Gardner)
Newsgroups: comp.sys.amiga
Subject: Re: Cable for a NEC MultiSync
Message-ID: <1050@esunix.UUCP>
Date: 4 Nov 88 05:45:21 GMT
References: <5004@louie.udel.EDU>
Organization: Evans & Sutherland Computer Corporation
Lines: 40

From article <5004@louie.udel.EDU>, by AXDRW%ALASKA.BITNET@cunyvm.cuny.edu (Don R. Withey):
> 1. What the pin addresses are coming out of the MultiSync;
>    and does anybody know if the Interlaced mode will
>    damage my MultiSync's internal circuitry?

The pinouts for the NEC JC-1401P3A video connector (DB9) in analog mode
are:

1	Red
2	Green or Green & composite sync
3	Blue
4	H sync or composite sync
5	V sync
6-9	Ground

This is with the MANUAL switch set to ON, and the TTL/ANALOG switch set
to ANALOG. 

This is the original NEC Multisync, the newer models may be different. 

Interlace will not smoke the monitor, but this model does NOT display
interlace correctly. Instead of offsetting each frame one scan line (for
odd and even frames), both frames are displayed on the same set of scan
lines. If you think interlace looks bad, you ain't seen nothing yet!
Anything smaller than 2 scanlines high gets overwritten by the
contrasting image in the other frame.

I've heard that the new NEC Multisyncs do work with interlace, but
haven't seen one myself.


I did find a very satisfying (and expensive) solution: MicroWay's
flickerFixer.  (This defect in the NEC was the excuse I needed to justify
the flickerFixer. :-)

-- 
Blaine Gardner @ Evans & Sutherland    580 Arapeen Drive, SLC, Utah 84108
Here: utah-cs!esunix!blgardne   {ucbvax,allegra,decvax}!decwrl!esunix!blgardne
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"Nobody will ever need more than 64K."    "Nobody needs multitasking on a PC."