[comp.sys.cbm] Connecting an RGB monitor to the C64?

scott@max.u.washington.edu (06/28/90)

A friend of my has an 80 column RGB monitor that he would like to use with the C64. The RGB monitor does
not come with a composite input phono-port. Instead
It only has one 6 pin DIN port.
What he would like to know is whether there is a
way to connect the C64 to his RGB monitor?
 
He is thinking of connecting all the color lines together of the RGB
monitor to the Video-output pin of the C64. Is this a wise thing to do?
Will it work? Is there a better method of doing it?
 
I have noticed that in the newer C64c there is an extract
Chroma pin output. Does this extra pin facilitates in the
connection to the RGB monitor.
 
Any help will be appreciated.
 
Thanks in advance,
Scott K. Stephen

feinberg@acsu.Buffalo.EDU (john a feinberg) (06/28/90)

I'm afraid you can't connect an RGB monitor to a c64...
The extra pin you are talking about on the 64c isn't really extra, since all
c64 computers have it.  Commodore computers have separate chroma and luma out
jacks; a few monitors out there have separate chroma and luma inputs.  Although
this method isn't quite as good as RGB, it gives you a picture with at least
double the resolution and ten times the stability of a tv picture.  Many c64
monitor cables splice the chroma and luma output pins together to get a single
composite line, which can then be plugged into generic monitors or VCRs or 
things like that.  Tell your friend to buy a Commodore monitor!  :)  Mine's 6
years old, and it'll beat the pants of the best tv on the market, if hooked up
to a decent LD player (it can actually be done)

John Feinberg
SUNY Buffalo