24th June 2022, 8:17 PM
(This post was last modified: 25th June 2022, 9:50 AM by Dark Jaguar.)
(24th June 2022, 8:08 PM)A Black Falcon Wrote: Why AV mod the PCE? That doesn't make much sense, that's what the IFU is for...
I mean I want the thing to work as a standalone unit. That's the only reason I needed. Yes the IFU does the job just fine, but it's nice to be able to use it by itself now that the RF unit is removed. Sometimes the only answer is "because I thought it would be interesting".
Anyway, the mod's in place. I was going to use the leads heading to the RF unit, but it appears audio and video are mixed before it even reaches those three holes. Instead I pulled it from the ext bus. I mixed mono sound off stereo and am going to go ahead and get stereo heading to two pins in that 9 pin mini-din I swiped off an old dead Genesis 2. It'll effectively become a "Core Grafx" after this mod. I tested it and it all works, and then I went and removed the mod. I have to redo it because the resistors I put in place for that mono sound (to keep it from mixing the signals when in stereo mode), were too fat to let me close up the system.
Any excuse to practice my soldering skills a little more I'll take.
Besides, when it gets right down to it, all I really needed to do was assemble a MISTer unit and just emulate all this stuff anyway. Doing the unnecessary is a big part of retro gaming.
Edit: And it's done! I've got everything run properly internally with minimal mess (ribbon cables do WONDERS for keeping runs straight inside these things). Again, it's no full RGB mod, just a composite one but I've got it set up perfectly for my existing Genesis 2 cables, in both Stereo and Mono enabled modes (in the Genesis 2, there's a pin dedicated to left, a pin for right, and a pin for combined mono sound rather than letting the cable combine them). I could go further and fully provide R, G, B, S, and 5V signals on the remaining pins, but from what I understand "splitting" the potential RGB signal like that can cause video interference issues, so I'm going to save the full RGB mod for the IFU. I'll 3D print up a new connector plate and plug it all in there.
Here's a unit that will provide very clean RGB signal that I think I'll pick up.
https://voultar.com/index.php?route=prod...duct_id=79
"On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question." ~ Charles Babbage (1791-1871)