V9990 -> CGA cable: advice needed

Par The Apeman

Expert (101)

Portrait de The Apeman

28-11-2020, 14:23

I've recently acquired a Tecnobytes V9990 Light, which I connect to a SCART to HDMI converter using its S-video output. For games this is more or less acceptable but Symbos' higher resolutions are barely usable. Because my monitor also has a VGA in, I bought a 15Khz RGB CGA/Component YCbCr to VGA Converter Scaler, the CGA input I'd like to connect to the V9990's DE-15 subminiature output. This way I can switch between the V9990 and my MSX's own signal using a button on my monitor. The alternative would be a cable connecting the DE-15 subminiature output of the V9990 to the SCART converter, which would mean I have to switch SCART cables, as I do now.

I have no experience creating cables, so I have three questions:

1. Is any of the two cables described available somewhere that I can buy them?
2. If not, what tools would I need for this project?
3. Which, if any, videos on Youtube or the likes can teach me how to do this?

Also, while the CGA-VGA converter has both a 15 pin input and output, the input is documented as 9 pins:

1 Ground
2 Ground
3 Red
4 Green
5 Blue
6 Intensity
7 Reserved
8 Horizontal Sync
9 Vertical Sync

How can I find out (or is there a standard) which of the 15 pins are the 9 ones used?

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Par SkalTura

Champion (264)

Portrait de SkalTura

30-11-2020, 08:03

If you want to make the cable yourself, you would need a soldering iron probably.

Don't know where you live, but there are probably plenty of people in your area that can make a cable for you.
If you have all the pin-out's and the parts, that shouldn't be a problem...

Par The Apeman

Expert (101)

Portrait de The Apeman

30-11-2020, 09:04

Thanks for your response!

I live in Amsterdam. If there's someone who could do this for me, I think I'd end up with a much better cable than if I try this myself, yes.

Par SkalTura

Champion (264)

Portrait de SkalTura

30-11-2020, 11:41

What you could also try is to post your request on https://www.circuitsonline.net/
This is an electronics forum with a lot of Dutch and Belgian hobbyists.
Surely there is someone in Amsterdam who is willing to help you with the cable.