rhcocker Posted May 21, 2016 Share Posted May 21, 2016 (edited) So I completed the G7400 RGB addition mod as described here. It was surprisingly simple and took me about an hour to finish. I now need to build the 8 pin DIN to SCART cable. I am not familiar with building these, but I can't imagine it would be too difficult. So I hope someone here could give me some tips to help me complete it. Here is DIN Connector Pinout (according to the website at the link above) 1: RGB status (75 Ohm, 3 V) 2: Ground (0 V) 3: Blue (75 Ohm, 0.7 Vtt) 4: Composite Video (CVBS) (75 Ohm, 1 Vtt) 5: Red (75 Ohm, 0.7 Vtt) 6: Status CVBS (VCR) (10 kOhm, 12 V) 7: Sound 8: Green (75 Ohm, 0.7 Vtt) Here are my questions: 1) Do I add a 10 kOhm resistor to scart pin 6 and 75 Ohm resistors to scart pins 1, 3, 4, 5, and 8? 2) Does the symbol on scart pin17 (see fig) mean that I just connect it to the metal connector (pin 21)? 3) Are there any other components that I should be adding to the cable? Any help or additional info would be greatly appreciated. Thanks Edited May 21, 2016 by rhcocker 1 Quote Link to comment Share on other sites More sharing options...
rhcocker Posted May 25, 2016 Author Share Posted May 25, 2016 Bump - Anybody? Quote Link to comment Share on other sites More sharing options...
VPB--- Posted May 27, 2016 Share Posted May 27, 2016 Hi! I never add any resistor or component in the scart cable The genuine RGB scart cable (french péritel) hasn't component inside. Quote Link to comment Share on other sites More sharing options...
Atari 2600 H.E.R.O Posted June 3, 2016 Share Posted June 3, 2016 (edited) So I completed the G7400 RGB addition mod as described here. It was surprisingly simple and took me about an hour to finish. I now need to build the 8 pin DIN to SCART cable. I am not familiar with building these, but I can't imagine it would be too difficult. So I hope someone here could give me some tips to help me complete it. Here is DIN Connector Pinout (according to the website at the link above) 1: RGB status (75 Ohm, 3 V) 2: Ground (0 V) 3: Blue (75 Ohm, 0.7 Vtt) 4: Composite Video (CVBS) (75 Ohm, 1 Vtt) 5: Red (75 Ohm, 0.7 Vtt) 6: Status CVBS (VCR) (10 kOhm, 12 V) 7: Sound 8: Green (75 Ohm, 0.7 Vtt) DINPinout.jpg Here are my questions: 1) Do I add a 10 kOhm resistor to scart pin 6 and 75 Ohm resistors to scart pins 1, 3, 4, 5, and 8? 2) Does the symbol on scart pin17 (see fig) mean that I just connect it to the metal connector (pin 21)? 3) Are there any other components that I should be adding to the cable? Any help or additional info would be greatly appreciated. Thanks Sir, Don't Add Resistor and, No Other Wiring/Connections. Here G7400 == G7200 (Only, In RGB To Scart Cable!) 3V/75Ohm, 12V/10kOhm, ... Are The Lines Technical/Electrical Specifications (Voltage/Impedance Specification). Good Luck. Edited June 3, 2016 by Atari 2600 H.E.R.O 1 Quote Link to comment Share on other sites More sharing options...
rhcocker Posted June 3, 2016 Author Share Posted June 3, 2016 Hi! I never add any resistor or component in the scart cable The genuine RGB scart cable (french péritel) hasn't component inside. Sir, Don't Add Resistor and, No Other Wiring/Connections. Here G7400 == G7200 (Only, In RGB To Scart Cable!) 3V/75Ohm, 12V/10kOhm, ... Are The Lines Technical/Electrical Specifications (Voltage/Impedance Specification). Thank you both very much for your replies. This helps. Quote Link to comment Share on other sites More sharing options...
SSG Posted June 5, 2016 Share Posted June 5, 2016 I couldn't help ya. SCART isn't common in NA Quote Link to comment Share on other sites More sharing options...
CatPix Posted June 13, 2016 Share Posted June 13, 2016 If you have trouble with the picture quality, you can solder together pings 4, 5, 9 13, 17 and 18, they are grounding pins. Depending on your display it can improve the picture quality. Quote Link to comment Share on other sites More sharing options...
pokemontrainer Posted February 27, 2019 Share Posted February 27, 2019 Reviving this old thread: What 8pin DIN connector did you use for the cable? And does the connector differ from the one used in the older G7XXX ? I bought all components for the RGB mod as described on the site you linked above, including the correct MAB-8-SH socket. I then ordered this Odyssey/Videopac rgb cable. Before doing the RGB mod I now realized that the cable connector does not fit in the DIN socket, it must be this other DIN 8 variation mentioned in the mod manual. I have some spare DIN-8 connectors, but those also seem to be the wrong kind, hence I hope someone here can give me a link or article number of a connector that fits into this special MAB-8-SH DIN 8 socket. Thanks Quote Link to comment Share on other sites More sharing options...
CatPix Posted February 27, 2019 Share Posted February 27, 2019 (edited) For 8 pins, there seems to be 2 variations, that are usually called "horseshoe" and circle. The difference is more obvious on the male connector side : You normally need the 270° one (circular). But apparently, you ordered the 262° socket instead of the 270°, which is why the ready-made cable you bough doesn't fit. Edited February 27, 2019 by CatPix Quote Link to comment Share on other sites More sharing options...
pokemontrainer Posted February 27, 2019 Share Posted February 27, 2019 Ok, thanks for the explanation, this makes it much clearer, esp. with the picture. So the original socket (the one used in the french versions of the G7400 is a circular one and not a horseshoe as described in the RGB mod page? I want to create a mod that is close to the original french model, so I would like to know whether I should order a new socket for the pcb or a connector for the cable. Quote Link to comment Share on other sites More sharing options...
CatPix Posted February 27, 2019 Share Posted February 27, 2019 I can tell you that on my G7400, they used a circular 270° socket. The 262° one is unusual, I've only seen it used for the SMS and Megadrive as far as video gaming connections goes. Quote Link to comment Share on other sites More sharing options...
carlsson Posted February 27, 2019 Share Posted February 27, 2019 Yes, Sega and Commodore use the 262 degree horseshoe, possibly a few more (depending on whether you consider e.g. the C64 to be a "video game" or not). Quote Link to comment Share on other sites More sharing options...
CatPix Posted February 27, 2019 Share Posted February 27, 2019 Hah! I don't remember this; but I think I only saw French C64 with modified Procep RGB out, with a "standard" 270° connector. I don't remember about my C128D tho. -But after looking on Internet, apparently, on C64 model II and C128, Commodore switched to a 270° connector. Quote Link to comment Share on other sites More sharing options...
carlsson Posted February 27, 2019 Share Posted February 27, 2019 That is not at all my first hand experience after dealing with both C64C and C128, but it is rather irrelevant in a discussion about the Videopac+ G7400. Quote Link to comment Share on other sites More sharing options...
alortegac Posted June 17, 2020 Share Posted June 17, 2020 On 6/3/2016 at 6:27 AM, Atari 2600 H.E.R.O said: Sir, Don't Add Resistor and, No Other Wiring/Connections. Here G7400 == G7200 (Only, In RGB To Scart Cable!) 3V/75Ohm, 12V/10kOhm, ... Are The Lines Technical/Electrical Specifications (Voltage/Impedance Specification). Good Luck. Hi, is this view from the rear/soldering or front/plugging side of the 8din plug? thanks a lot! Quote Link to comment Share on other sites More sharing options...
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