[Coco] CM-2 260-3212 color monitor with coco 3?

[Arthur Flexser]

I think you'd get only 8 colors if you interfaced a CM-2 to a CoCo 3.
The R, G, and B would be either on or off, no in-between, no?

Art

On Sat, Sep 19, 2015 at 5:44 PM, Barry Nelson <
barry.nelson at amobiledevice.com> wrote:

> According to what I have found the CM-2 appears to use an RGBI interface
> as opposed to the CoCo 3's analog RGB. RGBI is limited to 16 colors and the
> signal level is TTL 0 or 5 volts digital. The CoCo 3's RGB line signals are
> 0 to .7 volts analog. You could construct a circuit to interface the two,
> but the CoCo 3 can display 64 colors and that monitor can only display 16.
> I suggest using another solution like my CoCo 3 to HDMI adapter cable to
> display on a modern display in full color. I am including the CM-2 pinout
> below.
>
> Pin     Name    Description
> 1       GND     Ground
> 2       GND     Ground
> 3       R       Red
> 4       G       Green
> 5       B       Blue
> 6       I       Intensity
> 7       RES     Reserved
> 8       HSYNC   Horizontal Sync
> 9       VSYNC   Vertical Sync
>
>
> > Walter Miraglia walter.miraglia at gmail.com
> > Just wondering.  I recently acquired a Tandy 1200 HD which came with a
> CM-2 colour monitor and I am wondering, if I make the appropriate cable,
> will this monitor work with my COCO3?
> >
> > The monitor is at my brother in law's place about 5.5 hour drive away...
> So wondering if it's worth the drive or if it can wait until thanksgiving
> in October. (Canadian here eh!)
> >
> > Cheers!
>
>
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