[Coco] Re: [Color Computer] Re: Can I use a CM-4 on the Coco 3

Pierre Fortin pierrefortin at altern.org
Fri Apr 8 17:18:10 EDT 2005


I not all understood about what you speak but here is the manual of 
monitor cm-4 http://www2.asub.arknet.edu/wade/cm4service.zip



Sylvain De Chantal a écrit :

>
> --- In ColorComputer at yahoogroups.com, Mike Pepe <lamune at d...> wrote:
> >
> >
> > Without a detailed schematic it's impossible to say for sure, but
> > essentially the process would involve removing/bypassing the
> digital
> > input circuitry and feeding the analog section of the monitor. It
> may be
> > trivial or complex depending on the circumstance.
> >
> > Also note that technically, the CM-4 and other TTL monitors may not
> work
> > at all due to the analog signal from the CoCo 3 being below the
> > threshold voltage for a TTL circuit. Also the polarity of sync
> pulses
> > may be wrong, etc.
> >
> > I did turn a CM-8 into a CGA monitor with a few resistors and
> diodes
> > when I moved into PC-land, so perhaps the sync is close enough to
> work.
>
>
> Hi Mike,
>
> Like you're  saying, without a detailed shematic, it seems
> a dead-end. Since i only have one monitor, i won't try to
> tweak with it. Think i'll plug my Coco 3 on both CM-4 and my
> Commodore A/V monitor. Thanks for the infos! :)
>
> --- Sly DC ---




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