Author Topic: can Amstrad PPC512 use CPC monitor or maybe MP1 or MP2 modulator  (Read 989 times)

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Offline zapp_man

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Hello can anyone confirm if I can use a CPC monitor with a PPC512/PPC640 and if so can I use a MP1 or MP2 modulator to power and display via a tv. I read this at old-computers.com.


Thanks in advance.
ZM

Offline Velktron

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That sounds unlikely, as the PPC512/640 had a TTL-level CGA/MDA output, which is unsuitable for driving any kind of analog RGB monitor directly.


It's possible to build a relatively simple semi-active converter though (search for CGA to SCART), but I don't know if the CPC monitor could handle the 60 Hz scan rate.


EDIT: my bad, it seems that the PPC512 (or at least certain revisions) included a 6-pin DIN connector for Amstrad's RGB monitors:





Well, it'd be interesting to see how CGA colors were rendered through the RGB output  :o 8)
« Last Edit: 16:32, 08 September 15 by Velktron »

Offline Bryce

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As far as I can remember, the analogue RGB outputs were rendered with a simple resistor network from the TTL levels, much like those CGA to SCART adapters work, so I suspect the picture quality was still crap CGA.

Bryce.

Offline Velktron

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As far as I can remember, the analogue RGB outputs were rendered with a simple resistor network from the TTL levels, much like those CGA to SCART adapters work, so I suspect the picture quality was still crap CGA.

Bryce.


Well, I was referring to a "dispute" about CGA's color 6, which should be Brown instead of Dark Yellow  ;)


http://www.oldskool.org/pc/cgacal


So, does the PPC512/640 display the One True CGA Palette the Way It Was Meant To Be ? (TM)  ;D