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From: malay@sae.com (Bob Malay)
Newsgroups: comp.sys.atari.st,comp.sys.atari.st.tech
Subject: Connecting to a Non-atari monitor?
Message-ID: <246@jupiter.sae.com>
Date: 27 Mar 91 17:29:40 GMT
Article-I.D.: jupiter.246
References: <1991Mar14.184405.29264@ecst.csuchico.edu> <qeVuy2w164w@ersys.uucp>
Organization: Software AE, Arlington, VA
Lines: 58

Help! How can I connect a Zenith Data Systems ZVM-135 RGB Monitor to an
Atari 1040STE? Here's the ZVM-135's connector pinout:
      
            1  - Negative horizontal or negative composite sync*
            2  - Positive horizontal or positive composite sync*
            3  - NC
            4  - Positive vertical or positive composite sync
            5  - Green input
            6  - Blue input
            7  - Red input
            8  - NC
            9  - NC
            10 - Green feedthrough
            11 - Apple X1 Input
            12 - Apple X2 Input
            13 - Apple X3 Input
            14 - Negative vertical or negative composite sync
            15 - IBM intensity
            16 - Ground
            17 - NC
            18 - Audio input
            19 - Ground
            20 - Composite video input
            21 - Red feedthrough
            22 - Blue feedthrough
            23 - NC
            24 - NC
            25 - Apple X8 input

*NOTE: Composite sync must be supplied to both the horizontal and vertical
       sync inputs.

Specifications:

inputs .......  DB-25 type connector
                R,G, and B signals TTL level analog positive
                Composite - TTL positive or negative
                Horiz sync - TTL positive or negative
                Vert sync - TTL positive or negative
                Ground
                Audio - .5V to 1V rms.
                Audio ground.
                Apple III video - (4)
                IBM intensity
                Composite video.



This monitor is switchable from RGB to Composite. It has an DB-25 RGB
connector and a set of RCA phono type jacks for composite. There was
a message floating around (dated 4 Jan 87) that showed how to connect
a Sony XBR monitor to an ST and it works (I've seen the result). I 
realize that I could just use the composite input with the STE but I 
would like to use the RGB for obvious reasons. Anybody got any clues????


Bob Malay 
malay@sae.com