Path: utzoo!attcan!uunet!aplcen!samsung!rex!ukma!phoenix
From: phoenix@ms.uky.edu (R'ykandar Korra'ti)
Newsgroups: comp.sys.atari.8bit
Subject: Re: Atari 800 Monitor Connection
Message-ID: <13292@s.ms.uky.edu>
Date: 21 Nov 89 19:20:00 GMT
References: <29958@iuvax.cs.indiana.edu> <24307@cup.portal.com> <30116@iuvax.cs.indiana.edu>
Reply-To: phoenix@ms.uky.edu (R'ykandar Korra'ti)
Distribution: na
Organization: El'n'tk National Spaceport, Mission Control
Lines: 28

In article <30116@iuvax.cs.indiana.edu> viking@silver.bacs.indiana.edu (Jon W. Backstrom) writes:
>In article <24307@cup.portal.com> Bob_BobR_Retelle@cup.portal.com writes:
>>Yer probably not going to believe this Jon.. (I didn't myself, at first)
>>but the Atari monitor port has exactly the same pinouts as the C-64
>>does..!
>I've heard this, but maybe this applies to a different Commodore system.
>I have a C-64 (the old brownish-grey model) with a 1702 monitor.  The
>cable in the back which connects to the audio/chroma/luminance RCA plugs
>is an *8* pin plug...seven around the bottom with one in the middle.
>...Was this changed in the C128 or later models?
     Well, there was a change, but not in the direction you're thinking.
     The C64 first came with a the five-pin plug which was compatible with
the Atari. This provided composite video and audio, along with a ground or
two. They later introduced a different version which had separated chroma
and luminance pins, for better video on monochrome and (their) colour monitors.
(It really helped, too.). This was the eight-pin plug.
     I had both models; my original C64 got hit by a lightning-based power
surge, and the one I got back in the swap (Commodore once had the same
"repair" policy that Atari has now) had the eight-pin. Fortunately, I could
plug my old five-pin cable into it just fine...
     The C128 also has the eight-pin plug for 40-column output. (I'm still
using my original cable, one I made up from my spare TRS-80 Cassette Cable.
If you're trying to build a monitor cable and need that silly plug, just go
to Radio Shack. I _think_ you can still buy the thing.)
                                                           - R'ykandar.
-- 
| R'ykandar Korra'ti, Editor, LOW ORBIT | phoenix@ms.uky.edu | CIS 72406,370 |
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