[Coco] commodore 1080 monitor

[Joel Ewy]

Mike, I believe one or both of the sync signals need to be inverted.  I
made an adapter to use a CM-8 on an A1000, and I had to put an inverter
in there.  I don't remember the details exactly off the top of my head,
but that might point you in the right direction.

JCE

mike delyea wrote:

> I picked up a 1080 monitor for next to nothing.  Composite video works

> but I

> can't seem to get the RGB working.  I made a cable using pinouts for the

> monitor I found on the net.  I found 2 pinouts, neither seem to work.  I

> wasn't able to find a specific pinout for the 1080, but found 2 for then

> 1084.  People say they are functionally the same from what I've read.

> Connector is 9 pin D type.

>

> Pin  Description

> 1     Green Video

> 2     Horizontal Sync

> 3     Ground

> 4     Red Video

> 5     Blue Video

> 6     Vertical Sync

>

> Results in green diagonal lines

>

> Pin     Name         Analog Mode         Digital Mode

> 1     GND             Ground                 Ground

> 2     GND             Ground                 Ground

> 3     R                  Red                      Red

> 4     G                 Green                   Green

> 5     B                 Blue                      Blue

> 6     I                   not used                Intensity

> 7     CSYNC        Composite Sync     not used

> 8     HSYNC         not used               Horizontal Sync

> 9     VSYNC         not used               Vertical Sync

>

> Results in red diagonal lines.  I used the analog pinout, but since the

> coco3 doesn't have composite sync I used the hsync and vsync (pins 8 and

> 9).  I checked all the connections with a multimeter and they are OK.

> Suggestions?

>

> -- 

> Coco mailing list

> Coco at maltedmedia.com

> http://five.pairlist.net/mailman/listinfo/coco

>