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From: perley@galaxy (Donald P Perley)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Mono-video jack
Message-ID: <14317@crdgw1.crd.ge.com>
Date: 28 Nov 90 19:03:11 GMT
References: <5858@crash.cts.com>
Sender: news@crdgw1.crd.ge.com
Reply-To: perley@galaxy (Donald P Perley)
Organization: GE Corp. R & D, Schenectady, NY 12345
Lines: 26
In-reply-to: jlee@pnet01.cts.com (James Lee)

In article <5858@crash.cts.com>, jlee@pnet01 (James Lee) writes:
>mpierce@ewu.UUCP (Mathew W. Pierce) writes:
>>What is the mono-video jack in the rear of my A2000 for?  I tried to hook
>>up an old B&W TV to it to see if it worked with no success, any idea why 
>>that didn't work?

It is a baseband video signal, not an RF (ie channel 3 or 4) signal.
The easiest way to see it on a TV without a video input is by hooking
it up to a VCR, and the VCR to the tv.  Standalone converters are 
pretty cheap, but a lot of people already have a VCR.

One reason for the jack being mono is that it can (should) be as sharp
as the RGB signal from the 23 pin jack.  A composite color video
signal can't be.

>The mono-video jack in the rear of your A2000 is used for monochrome monitors,
>not for TV's (Color or B/W).  It should work with a simple monochrome monitor
>(EX: Apple ]['s green monitor), although I don't know why anyone would want to
>see in B/W with an Amiga... Unless he is using AMAX or something.

Or he uses interlace with a long persistance mono monitor, or wants
SOMETHING that works while he waits for the store to get color
monitors back in stock (that happened to me).

-don perley
perley@trub.crd.ge.com