[Coco] CoCo 3 to RBG...

[Steve Batson]

This is better...sorry for the repost again. Hopefully this final text only 
version should make it easier to read.

CoCo RGB<----------------------->15 Pin RGB/VGA
   
1  GND<----------------------------------->5,6,7 Ground
2  GND<----------------------------------->8,10 Ground
3  RED<----------------------------------->1 RED Out
4  GREEN<------------------------------->2 GREEN Out
5  BLUE<---------------------------------->3 BLUE Out
6  No Pin/No Connection<------------->N/A
7  AUDIO<-------------------------------->N/A
8  HSYNC<------------------------------->13 HSYNC
9  VSYNC<------------------------------->14 VSYNC
10 No Connection<---------------------->N/A

 

----------------------------------------

From: "Steve Batson" <steve at batsonphotography.com>
Sent: Monday, July 11, 2011 2:37 PM
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Subject: Re: [Coco] CoCo 3 to RBG... 

Well that table got screwed up, let's try this:

CoCo RGB 15 Pin RGB/VGA

1 GND 5,6,7 Ground
2 GND 8,10 Ground
3 RED 1 RED Out
4 GREEN 2 GREEN Out
5 BLUE 3 BLUE Out
6 No Pin/No Connection N/A N/A
7 AUDIO N/A N/A
8 HSYNC 13 HSYNC
9 VSYNC 14 VSYNC
10 No Connection N/A N/A

----------------------------------------

From: "Steve Batson" 
Sent: Monday, July 11, 2011 2:29 PM
To: "CoCoList for Color Computer Enthusiasts" 
Subject: Re: [Coco] CoCo 3 to RBG... 

Thanks Gene...I will definitely be checking the specs when I get back home 


a little later.

As far as the cable, looking at the specs for the CoCo RGB connector and 
the 15 Pin VGA connector, I've matched up all the signals that both have 
that I would use to build the cable. Looking at it, I'm assuming I can tie 


the grounds together, ignore the Audio signal and the No Connection pins 
from the CoCo side. That being the case, the following table (I hope this 
comes through) should list everything I need to wire up the cable and get 
it working assuming I can use it with a monitor that supports the lower 
frequency range you described on the Horizontal Sync.

What do you think? 

CoCo RGB 
15 Pin RGB/VGA 

1 
GND 
5,6,7 
Ground 
2 
GND 
8,10 
Ground 
3 
RED 
1 
RED Out 
4 
GREEN 
2 
GREEN Out 
5 
BLUE 
3 
BLUE Out 
6 
No Pin/No Connection 
N/A 
N/A 
7 
AUDIO 
N/A 
N/A 
8 
HSYNC 
13 
HSYNC 
9 
VSYNC 
14 
VSYNC 
10 
No Connection 
N/A 
N/A 

----------------------------------------

From: "gene heskett" 
Sent: Monday, July 11, 2011 1:10 PM
To: coco at maltedmedia.com
Subject: Re: [Coco] CoCo 3 to RBG... 

On Monday, July 11, 2011 04:06:00 PM Steve Batson did opine:

> I'll check the specs on each and see if either looks suitable based on
> Gene's recommendation. I don't care which monitor works for the CoCo
> since either will work on a PC so would just put the one that doesn't
> work on the CoCo on the PC.
> 
Most of the old MultiSync (NEC) monitors have that info on a label on the 
back, so it shouldn't be too difficult. If not, Google for "$Brand $Model 
specifications", and it should be in the first page of hits.

[...]

Cheers, gene
-- 
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Life is difficult because it is non-linear.

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