Thorsten Günther Posted July 23, 2010 Share Posted July 23, 2010 As the Interton VC4000 was my first console, I recently re-acquired one with several games. But I am unable to mod it for AV out instead of RF despite having found the full diagrams (I'm simply too stupid to invent a circuit myself, all I can do is try and copy it once I see it). Here's the diagrams, can anyone tell me what to do to get a composite picture with this info? Thorsten Quote Link to comment Share on other sites More sharing options...
+5-11under Posted July 24, 2010 Share Posted July 24, 2010 Hi Thorsten, It looks like the video chip, the TEA1002 takes in RGB and Sync, and outputs composite video. Take your choice which one you'd prefer. You may need to buffer the outputs, so they'll provide a bit more power. Maybe someone could help with an easy transistor or LM318 circuit... similar to the mods for other consoles. Good luck, 5-11under Quote Link to comment Share on other sites More sharing options...
Thorsten Günther Posted July 24, 2010 Author Share Posted July 24, 2010 It looks like the video chip, the TEA1002 takes in RGB and Sync, and outputs composite video. Take your choice which one you'd prefer. You may need to buffer the outputs, so they'll provide a bit more power. Maybe someone could help with an easy transistor or LM318 circuit... similar to the mods for other consoles. On version 2, yes - the video circuit is done in discrete parts on the version 1 and of course the Grundig version is an entirely different beast (but that version of the console is scarce anyway since it plugged into a special RGB port only found on ancient Grundig TV sets). IMHO composite will be fully sufficient - these old consoles' video doesn't have that much to gain from RGB (as opposed to higher resolution computers like the Atari ST and Amiga - composite is much worse than RGB esp. in 80 column modes on these machines). Yes, I am mainly searching for a buffer circuit to have standard voltage for the composite line. For audio, a protective capacitor should suffice - as on the VCS. BTW, this family of consoles was also sold "down under", e.g. as the "Fountain Force 2". Thorsten Quote Link to comment Share on other sites More sharing options...
arcaderistismania Posted February 18, 2012 Share Posted February 18, 2012 I've just done the mod both to the v1 and v2. It's pretty simple. Just desolder the RF box and pull audio and video from its legs. It doesn't need any amp and has great audio and video quality. Good luck.. Quote Link to comment Share on other sites More sharing options...
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