I performed the N64 RGB mod using this guide: http://www.mmmonkey.co.uk/console/nintendo/ntsc_nintendo_64_rgb_new.htm I'm using an SNES RGB SCART cable with 220uF on the red green and blue lines. I removed the SCART plug and wired it up to a DB-9 connector instead, since SCART sockets aren't exactly easy to come by in the US. Because I live in North America, I don't have a TV with any kind of RGB input, so I got this to convert the signal to "component" video (YPrPb): http://www.jrok.com/hardware/RGB.html I wired the composite sync from the N64 (pin 3) to the converter for its sync input, instead of using composite video (pin 9). When I hook up either composite video or s-video from the converter, the picture looks fine. But when I hook up the component (YPrPb), I get nothing. Occasionally I get some random garbage that resembles what's supposed to be displayed, but it only lasts maybe a second at a time. I may be wrong, but I feel like if the video converter is converting the RGBS input into composite and s-video just fine, then the problem isn't with the input lines. Is it possible something is wrong with the converter? I tried 2 different TVs, and they both do the same thing. Has anyone else tried a setup like this? What am I doing wrong, if anything? Thanks in advance for any help!
Either it is the converter or how you wired up the DB-9 plug. I used the same guide and it turned out fine albeit it ran to a SNES SCART cable to a SCART capable display.
Well like I said, the composite and s-video outputs work fine. Since they are "built" from the only input (that being RGB) wouldn't that almost imply that the input wiring is correct and something is wrong with the circuitry that's constructing the YPrPb output? Also, I checked the wiring on both sides of the DB-9 and they match up to the correct pins on the n64.
Without seeing how you've wired it all up I can't be sure. Something doesn't sound right and I'm thinking it is the wiring.
I can try taking pictures, if it'll help. <-- N64 Yellow/Orange - RGB Red Purple - Ground Blue - RGB Blue Gray - Ground Green - RGB Green <-- N64 White - L Audio Red (Thin) - R Audio Red (Thick) - Composite Sync Brown - +5V Converter --> Red - RGB Red (Converter RGB In) Black/Red - Ground (Audio) Blue - RGB Blue (Converter RGB In) Black - Ground (Converter RGB In) Green - RGB Green (Converter RGB In) Converter --> Black/Red - L Audio Red - R Audio Yellow - Composite Sync (Converter RGB In) I continuity checked at each stage-- between the N64 and the DB9 plug; between the N64 and the DB9 socket (connects to converter); and between the N64 and the contacts on the converter board itself. They all check out, and aren't bridged at all.:shrug: The whole idea with the DB-9 plugs is I plan on using the converter for more than just the N64, and would like to make special cables for each console (N64, SNES, Genesis, etc.) As it is right now, this is kind of a test wiring. The composite sync wire is completely separate from everything, as the cable I got didn't have one built into it that connected to pin 3 on the multi-av plug. I have no idea if I can open up that end of the cable and rewire it, maybe using the +5V lead since I don't need it. I'd rather not cut traces on the N64 itself. I can deal with that whenever this issue gets resolved.
Did you ask the seller if the converter is even supposed to work with the N64? From all I know you may need an extra device called "sync stripper". But I haven't read to much about it, so I might be wrong.
NUS-CPU-03 I asked the place I bought the board from it and he said I needed to contact Jrok. I'm still waiting for a reply from them. From what I've read, this converter should work fine with the Nintendo 64. I've read about other people using it or suggesting it to others.
Looks good from what I can see. The 03 shouldn't need any traces cut though I did cut one on the N64 I modded to be able to use the MultiAV connector directly. I severed composite video to run C-SYNC through it IIRC. Leaning towards a converter problem.
