viking@silver.bacs.indiana.edu (Jon W. Backstrom) (11/19/89)
I just bought an old Atari 800 on a lark and I wanted to hook it up to
my Commodore monitor. There is a five-pin DIN connector on the side,
but I don't have a manual to map the pin-outs.
Could some kind person mail me the pin-outs for the Monitor port? I
assume there are four connections: video/gnd and audio/gnd.
Your help is appreciated!
-------------------------------------------------------------------------------
Jon W. Backstrom "Yah sure...we gonna have fun, you bet!"
Institute for Digital Arts
P.O. Box 176 Internet: viking@silver.bacs.indiana.edu
Bloomington, IN 47402-0176 UUCP: {ames,rutgers,att}!iuvax!silver!viking
-------------------------------------------------------------------------------clf3678@ultb.UUCP (C.L. Freemesser) (11/20/89)
In article <29958@iuvax.cs.indiana.edu> viking@silver.bacs.indiana.edu (Jon W. Backstrom) writes: >I just bought an old Atari 800 on a lark and I wanted to hook it up to >my Commodore monitor. There is a five-pin DIN connector on the side, >but I don't have a manual to map the pin-outs. > >Could some kind person mail me the pin-outs for the Monitor port? I >assume there are four connections: video/gnd and audio/gnd. > Looking at the port itself, you will see: U 3 1 5 4 2 Pin 1: Composite Luminance (not connected) Pin 2: Ground Pin 3: Audio Out Pin 4: Compoite video Pin 5: Composite Chroma (nc) One goofy thing I found was that with a mono monitor, the screen looks messed up, like every other pixel was skipped. I found that by connecting the composite video to either Pin 1 or 5 (I can't remember which), it cleared it up. I don't know if that happens on the XL/XE, but it did on my 800. Chris Freemesser, Rochester Institute of Technology :BITNET:%clf3678@RITVAX ||| ____________ :GEnie: C.FREEMESSER ||| /___ / (and 8-bit too!) :USENET: Don't bother, / | \ ______/ / : it doesn't work Call the A.C.O.R.N BBS (716)436-3078, 300/1200 baud :<-or my BBS
Bob_BobR_Retelle@cup.portal.com (11/21/89)
Jon W. Backstrom asks: >I just bought an old Atari 800 on a lark and I wanted to hook it up to >my Commodore monitor. >Could some kind person mail me the pin-outs for the Monitor port? 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..! The poor engineers who actually designed them to be compatible this way were probably fired from their respective companies long ago, but we can still thank them... BobR
tle33710@uxa.cso.uiuc.edu (11/21/89)
Hmmmm.....
A funny thing happened to me the other day....
I sent my 130XE to Atari with $65 so they would replace it, right?
Well, I accidentally sent them my monitor cable, too. Three weeks later (no
complaint here--the check had to clear) the new XE arrived, but the cable
was nowhere to be found. SO, I trekked on over to Radio Shack, bought a
5-pin DIN male plug and two RCA audio plugs with exposed end wires.
With the help of ANTIC's tech tips, here's which wires go where:
__ __
/ +-+ \
3 |o o| 1
5 | o o | 4
\ o /
-----
2 VIEW: Looking into computer from outside!
PIN #
1. Composite Luminance: Attach the Negative (-, Ground) wire of the Video cord
2. Ground: Attach the Negative (-, Ground) wire of the Audio cord
3. Audio Output: Attach the Positive (+) wire of the Audio cord
4. Composite Video: Attach the Positive (+) wire of the Video cord
5. Composite Chroma: Unused (sadly)
NOTE: I believe there was an article in ANTIC which explained that the
Chroma pin was used in the 800, but abandoned in the XL/XE versions,
although it is capable of being used with modifications. I'm still
looking for the article....
_______________________________________________________________________________
Tim Elliott | ``Genghis''
University of Illinois at Urpaign/Chambana | ``Enoch'' (Name of the Week)
tle33710@uxa.cso.uiuc.edu | ``Still mourning ANALOG''
-------------------------------------------------------------------------------
"I would never drink from headgear..." Dieter on Sprockets
Saturday Night Live 11/18/89
-------------------------------------------------------------------------------viking@silver.bacs.indiana.edu (Jon W. Backstrom) (11/21/89)
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..! > >BobR 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. This won't plug into the Atari 800 5-pin socket, of course. :-) Was this changed in the C128 or later models? (Here I sit with a collection of the worlds first 8-bit systems, but I don't know what has happened since.) On another note...anyone want to e-mail me to start a conversation? Now that I have an Atari 800 with 2 disk drives, I'd like to see how I can start to make it go (i.e. what software do I need to decode CC65, etc.) Thanks for all your help! ------------------------------------------------------------------------------- Jon W. Backstrom "Yah sure...we gonna have fun, you bet!" Institute for Digital Arts P.O. Box 176 Internet: viking@silver.ucs.indiana.edu Bloomington, IN 47402-0176 UUCP: {ames,rutgers,att}!iuvax!silver!viking -------------------------------------------------------------------------------
phoenix@ms.uky.edu (R'ykandar Korra'ti) (11/22/89)
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 | | Elfinkind, Unite! | phoenix@ukma.bitnet | PLink: Skywise | QLink: Bearclaw |
arthur@pnet02.gryphon.com (Arthur L. Rubin) (11/22/89)
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..! >> >>BobR > >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. > >This won't plug into the Atari 800 5-pin socket, of course. :-) The manual for my monitor (Magnavox CM8762) has the same cable diagram for Atari, Commodore (not C-128), and Texas Instruments computers. Arthur L. Rubin (home) (818)286-0981 PO Box 2437 San Gabriel, CA 91778 MCI Mail: ARUBIN 216-5888 Compuserve: 70707,453 INET: arthur@pnet02.gryphon.com (when pnet02 dies mid-Dec)INET: arubin@pro-sol.cts.com
Bob_BobR_Retelle@cup.portal.com (11/23/89)
Jon Backstrom mentioned, concerning the monitor connector on C-64s... >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. Argh.. I thought about this after I'd posted my reply to the earlier question... my C-64 is one of the very first (..like, $500) models.. the monitor connector on it is the same 5-pin DIN connector that my 800 used... but I remembered (too late) that they changed the connector in later versions. Unfortunately I don't have the pinouts for the 8-pin DIN connector. (Incidentally, one interesting side-effect of changing the plug was that it's now possible to plug in the 7-pin DIN *power supply* connector into the monitor socket on the back of the computer... with the kind of fireworks you might expect from something like that..! :) BobR
ehs@jumbo.dec.com (Ed Satterthwaite) (11/25/89)
In article <1636@ultb.UUCP>, clf3678@ultb.UUCP (C.L. Freemesser) writes: > In article <29958@iuvax.cs.indiana.edu> viking@silver.bacs.indiana.edu (Jon W. Backstrom) writes: > >I just bought an old Atari 800 on a lark and I wanted to hook it up to > >my Commodore monitor. There is a five-pin DIN connector on the side, ... > > > Looking at the port itself, you will see: > > U > 3 1 > > 5 4 > > 2 > > Pin 1: Composite Luminance (not connected) > Pin 2: Ground > Pin 3: Audio Out > Pin 4: Compoite video > Pin 5: Composite Chroma (nc) > ... Since the original poster has a Commodore monitor, there's a good chance that the luminance and chroma outputs can be used. On my 1702, I connected the audio, luminance, and chroma to the corresponding RCA jacks on the back of the monitor (ground to all the shields) and ignored the composite video. The picture is sharper, especially with things like 80-column terminal emulators, and the colors seem better too. Ed Satterthwaite ehs@src.dec.COM / {...}!decwrl!ehs