[Help] How to connect that converter to a Supergun ?

[lovecraft]

I got that CGA/EGA/YUV to VGA converter from Jammaboards
http://www.jammaboards.com/store/cga/eg ... d_291.html

My goal is to make a Sega Model 2 board set working through a Supergun (via a Model 2 to Jamma wirings adapter), but since the Model 2 delivers a 24 khz image output, I need that CGA/EGA/YUV to VGA converter to convert the 24 khz signal to 31 khz in order to make it running on a VGA monitor!
My problem is that converter was delivered with striped wires that plug into the RGB-in of the converter (1 red, 1 green, 1 blue, 1 grey, 1 yellow, and 1 black), but I'm a complete newbie and I don't know how and where to connect those wires to the RGB-out of my Supergun, since my Supergun has a RGB Scart-out! If someone can help ?

This is a (poor) drawing of what I want to do:

[lovecraft]

Just to clarify, this is the RGB cable with the 6 striped wires (red, green, blue, grey, yellow and black) I got bundled with the converter:


So I suppose I have to connect these striped wires to the corresponding pins of the Scart-out cable of my Supergun ??
According to this Scart pinouts layout, I guess the red, the green and the blue wires must go to pins 15, 11 and 7 ? But where to connect the grey, yellow and black wires left ? :

Thanks for the help guys!

[Fudoh]

For 15khz CGA PCBs you're plan would work right away, but for 24khz EGA boards you have to check the output to see if run on composite sync and not on split sync (horizontal + vertical sync). If that's the case, you're missing one sync wire on the Scart output and have to resolder from the Jamma connector.

(not saying that composite sync is out of the question, just saying that you better check the specs first)

[Fudoh]

PS: for boards using composite sync, the pinout is printed on the converter PCB (see manual), so grey is C-Sync (to Pin 20 of the Scart socket) and black is ground (to Pin 17 of the Scart socket). But as you can see Vertical Sync isn't available on the Scart plug.

[lovecraft]

PS: for boards using composite sync, the pinout is printed on the converter PCB (see manual), so grey is C-Sync (to Pin 20 of the Scart socket) and black is ground (to Pin 17 of the Scart socket). But as you can see Vertical Sync isn't available on the Scart plug.

Thanks a lot for the info. I got that converter from Yaton without any manual or pinouts sheet I'm glad to learn that I just need to solder these wires to the good pins of a Scart input... I was unsure of what to do!
About the Sega Model 2 hardware, I just hope it does not output split-sync I tried to collect infos on the web about this topic, but without result.
If someone could confirm about it ?

[Fudoh]

I got that converter from Yaton without any manual or pinouts sheet

But the PDF manual was in the link provided by yourself in your posting above....

[lovecraft]

oh! yes indeed

I found a picture of how the 6 wires are soldered to a Scart input, but how did he connect the vertical sync and where goes that second black wire ?
Also any idea about the use of that thin purple wire (looks like some sort of jumpers)... I can't figure it out, it looks more complicated than my plan

[ZOM]

^The black wires are both just GND, they go to the same place: the connector's edge (pin 21).
The purple one seems to be a common video-ground chain: It connects the R GND(pin13), the G GND(pin9) and the B GND(pin5) together with whatever source he gets for video-ground - but probably he just connected it to pin 21 (dunno if that's a good idea, maybe I'm just noise paranoid).