Pierre Gielen wrote:
> I think this has been asked before, but I can't remember the answer, so: can
> a CGA colormonitor be connected to my MSX (NMS8255) if it doesn't have a
> SCART connector or a composite video switch? And: can an Amiga color monitor
> be connected to my MSX?
> Pierre
Hi,
Take a look on these pictures:
http://mercury.spaceports.com/~coreclub/pic/tjau98f.jpg
http://mercury.spaceports.com/~coreclub/pic/tjau98h.jpg
http://mercury.spaceports.com/~coreclub/pic/tjau98l.jpg
http://mercury.spaceports.com/~coreclub/pic/tjau98n.jpg
In them, you can see a Samsung CGA Color monitor in a Turbo-R GT.
I just made a circuit to convert MSX RGB signals (1 Vpp) to 6~14 VDC
level needed to the biasing of the base of the R-G-B transistors, and a
synchronism
separator to split MSX composite sync signal (1 Vpp) into VSync and Hsync (TTL
levels)
needed by the CGA monitor.
If you hava R, G, B and Composite Sync signals in the SCART connector, you can
use a CGA monitor just splitting V and H sync and converting the signal levels.
If you
have H and V sync already independent, then is more easy !
But if you have only Composite Video output, then you need a Chip ( I can't
remember his code, is a LMxxxx made by Philips) that can convert this signta in
R,G, B,
and V-H Sync signals.
And about an Amiga color monitor, YES, The Brazilian MSX Users Ricardo Jurczyk
Pinheiro and Daniel Jorge Caetano use their MSXes with Amiga Commodore monitors,
but I
don't know the monitor inputs... Probably the monitor is RGB and you need just a
cable.
Greetings
Werner Kai from MSX Core Club, Brazil
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