RGB+HV along with composite video? I am getting a Duo and I will get the RGB amp. The monitor I want to use is a Commodore 1084 which takes analog RGB but requires H and V sync. lm1881 can be used to split composite but I would also need to replace the stock 5 pin DIN with something for RGB+HV Is there a standard video port for any consoles (excluding HDMI obviously) that has composite, RGB, and H+V sync? If not, I'll just go with 8 pin DIN to have RGB out and building lm1881 inline cable to connect to the Commodore monitor.
Dreamcast or Xbox 360 should work. Two of the few RGB+HV consoles. Note the Duo has stereo sound on its DIN. You'd need a 9 pin DIN to perfectly match Genesis 2.
I think that most people adapt their monitor hookup to accept standard SCART RGB cables. I have a Sony PVM which features BNC jacks for RGB/S input. I was able to buy a BNC VGA breakout cable that connects to RGB plus two Syncs (H and V) though I only needed one since it's Composite Sync. From there I built a small box to mount a VGA style 15pin DSUB connector along with Red and White audio phono jacks. Then I got a SCART RGB switch box, cut off the end you would plug into the TV and instead connected those wires to the VGA port and phono jacks. The result is an adapter allowing me to connect standard RGB SCART cables for whatever console I have to my monitor. This is a much better idea than trying to build a custom cable for each system for your monitor. I would highly recommend doing something like this so you can use the standard RGB cables as opposed to requiring your own homemade cables. But if you're very much Do It Yourself then I guess it wouldn't matter. SCART RGB is about the only "standard" RGB connection for old consoles that exists. And you do have to watch out as there is Euro and Japan wiring methods that are not interchangeable.
SCARTs probably the best standard. Problem is it's huge, missing a common signal, getting connectors is an issue for some people and the pin spacing is silly when you go to put it on board. I ended up making my own connector using standard pin connectors. You can easily fit 16 pins in the space of the smaller console din holes, More if you round it out. Not an offical standard but as long as I wire them all up the same it's a standard for me.
SCART is also rare in USA. In all my time I have found only 1 SCART cable and no SCART capable display. I'll probably just make non-standard custom design. If USA is going to screw us by not offering high quality video until 1990's, I'll screw whoever gets to buy my stuff after I pass away.
What about building a SCART to monitor adapter with the conversion circuit inside? Reduce the need to modify consoles or further custom cables.
That's what I already suggested and mentioned that I did just that for my setup. There is no reason not to use existing Euro SCART RGB cables. Just make an adapter so you can connect them to your monitor and sound system. There is no reason to make a custom cable for each console you want to hookup via RGB. Sure we can whine about the US not adopting SCART or any form of RGB connection but it's not like you can't deal with it. There are lots of professional/commercial monitors that accept RGB and you can easily build an adapter and obtain RGB cables online.
