Author Topic: Using the Amstrad CTM644 Monitor  (Read 367 times)

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Offline remagorter

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Using the Amstrad CTM644 Monitor
« on: 12:24, 03 July 21 »
Maybe somebody can help. I am trying to use my CPC colour monitor for other purposes. I bought a scart to rgb adapter from cool novelties and have so far plugged into the monitor; an amiga, spectrum, bbc micro and megadrive with success but when I plug in a Wii, although I get a good picture, the colours are off, with a green tinge. Does anyone know how to correct this. Maybe it needs resistors in line. I’ve tested the wii scart lead in a flat screen tv and the colours are fine. It is an rgb scart lead as opposed to composite, hence why I am getting a picture on the amstrad monitor.
Thank you

Offline caver99

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Re: Using the Amstrad CTM644 Monitor
« Reply #1 on: 12:20, 01 September 21 »

below is the pinout of the wii rgb, check the pin out 1  -red, 2 - green, 3 - blue, 4 - sync, 5 - gnd and make sure its not syncing on the wrong pin

Offline DoctorCPC

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Re: Using the Amstrad CTM644 Monitor
« Reply #2 on: 06:20, 02 September 21 »

Can we convert the part of the Amstrad monitor that enters the CPC to a female Scart input? if we can do that i will start using my Schneider CTM 644 monitor again. Can you give more detailed information?


Offline DoctorCPC

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Re: Using the Amstrad CTM644 Monitor
« Reply #3 on: 06:24, 02 September 21 »

If I can add female scart to Schneider, namely Amstrad CTM 644 monitor, can I connect computers such as commodore 64, sinclair zx spectrum or Amiga?


Offline Bryce

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Re: Using the Amstrad CTM644 Monitor
« Reply #4 on: 09:54, 02 September 21 »
If I can add female scart to Schneider, namely Amstrad CTM 644 monitor, can I connect computers such as commodore 64, sinclair zx spectrum or Amiga?

You can make a female SCART input, but it will only be useful for computers with an RGB output such as the Amiga, but not the sinclair or commodore.

Bryce.

Offline DoctorCPC

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Re: Using the Amstrad CTM644 Monitor
« Reply #5 on: 12:39, 02 September 21 »

but I did AV mode on my Sinclair ZX Spectrum, Atari 2600 and Commodore 64. So I can get images from scart. I disabled the RF output. In this case, thanks to this modding, I can use my Amstrad color monitor on these devices, right? So I guess it's nothing special.


Offline Bryce

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Re: Using the Amstrad CTM644 Monitor
« Reply #6 on: 13:03, 02 September 21 »
No. Real SCART has RGB, composite and S-Video inputs, but CPC monitors only have RGB inputs or a monochrome composite input, so even with the mods, the monitor can't display them (in colour). The SCART input would only accept RGB signals.


Bryce.