the genesis RGB itself should be fine, the Genesis uses those lines to render it's own Composite video, via the Sony chip inside..
I would say it's the SCART cable.. My mod used the JROK adapter, but that involves MY own manual labor (which I like doing anyway)..
Does anyone have a close-up pic of the cable (scart plug end) insides so I could check to see if the wiring is correct? Couldn't find anything searching...
If I can eliminate the cable possibility, I'll just send the converter back and get a different one. I have a friend w/ a genny to test that avenue but I doubt it's the problem.
Edit: found these RGB SCART cable diagrams.
My cable has only 3 resistors, not to mention many other differences. It's going back. Fucking ebay :bull:
I wouldn't worry about the 5v line at all or the resistor on it. I don't think that is needed, but I don't make the cable, so what do I know? David J, who was the guy who makes the sweet cables? I forget his name.
Anyway try wiggling the cable at the SCART end connected to the box to see if colors change or flash or anything (if you haven't tried this already, that is). Could be a bad connection somewhere, but as others have said, I'm pretty sure the Genesis is likely sending out the correct signal. Too bad you don't have any other systems with SCART cables to test as well.
The last thing I'd recommend is rearranging the component cables. Screw color-matching the cables with the jacks. Change them around to see if anything happens. Hint: the proper GREEN jack will always give you black and white, so start with a cable plugged into the GREEN jack on your TV, and then plug it in to the jacks on the transcoder box. The one that gives you a stable B&W picture is the proper green connection. Now connect the other two cables and try switching them around with each other to see what happens. It's easy to mix up the dark green and blue jacks in dim situations.
chaoticjelly
Well, he only makes them for obscure european computers and the Sega Genesis 1 and 2. He doesn't have any listed right now, but if you find him on ebay, send him a message, as he might have a few not up yet.
Thanks for the info. And Joe, I've already tried all the obvious things like connections and loose wires etc. I even borrowed a friends genesis 2 today and it's definately not the problem (as I thought). Just gonna have to wait until the replacements arrive. Problem is, once you see how "in focus" things look with component you can never go back to the blurry composite crap. Guess I'll be playing Saturn and Dreamcast only for the next week and a half or so.
Thanks for the recommendation David. J I appreciate it.
I tend to make these cables in batches, the last lot I made was around 20 in total and they sold within a couple of weeks, that was several weeks ago.. they take around an hour each to make though.. a long time.. maybe a bit quicker in batches.. my cables are fully screened and shielded (resistant to interference!), others aren't.. I heatshrink the resistors in the SCART plug, others don't bother.. basically I make them with all the care with which I made the cables I personally use for gaming with.. others cut down on resistors, shielding etc as they are just in it for the quick cash..
Perhaps the problem with your cable is the 9 pin mini din end.. I doubt the knowledge of the seller as he states things like; 1.5 metres is the max length of an RGB scart cable without signal degradation, (more like 5-6 metres..) of course his may not be shielded :-D
The +5v is used for two purposes in the SCART end, and is only for SCART television functions so it doesn't really matter that it's missing from your cable. Basically with a SCART TV, a SCART socket can support composite, RGB and to a lesser extent, s-video. There is a pin and if a voltage within a range is applied, the TV is in RGB mode, without a voltage its in composite by default, so this only matters if its an RGB cable as without that voltage you get a nice black pictuere with dodgy outlines. The other pin is for AV switching which means if you have a voltage on it, when you turn the console on it will automatically appear on the screen as the TV changes AV channel for you..
I do make lots of cables.. some of which I hardly ever sell any of.. so anyone can ask me for anything and I can let them know if I can do it or not.. in a few weeks I will be making a few of my own Sega Saturn RGB Scart Cables.. you know the quality of the ones that are out there.. super thin and with lots of interference.. hope I can solve that problem ;-)
Oh - I forgot to add, there's another seller right there on eBay, selling "GOLD" Megadrive RGB Scart Cables.. it seems he is basically cutting the video connector off a super-thin and super-crap quality Playstation scart cable, trying to make out its better than a somehow non-gold-plated cable.. and selling for more money than I EVER sold my cables for... but people will purchase blindly and I guess they tend to mostly buy the cheapest product available.. regardless of quality.. blood sweat n' tears go into my cables ;-)
Yeah, sorry I couldn't remember your name, Chaoticjelly. I have a few of your SCART cables as well and they are of fantastic quality. I have one Mega Drive 2 cable for my Genesis/32X combo and a 2 Mega Drive 1 cables, one of which I use for my TurboGrafx-16/PC-Engine CD-ROM console. I had to tap the RGB internally and add a proper DIN. I also have a few non-chaoticjelly SCART cables. The SNES one I have works, but you can tell that it wasn't manufactured very well. I think the same goes for my Saturn cable, I'll have to double check.
My current Saturn Scart cable works fine... but it's too short.
Hey, I'm new here and I cannot post a new topic so I was wondering if anyone knows a way to fix the audio on a model 2 Genesis. The only sound I recieve is a faint buzzing noise. I know it isn't the AV cables or the RF switch. (It does it with both, it sounds alot worse when using AV cables.) If anyone can help me out, I greatly appreciate it.
Try a different power adapter. A faulty adapter is enough to power the system, but not the audio portion.
Thanks man, I will, I have to get one though. In the mean-time, I was wondering if there is anything that could be wrong internally that I may be able to correct. I thought my AV cables were broken because some of the pins that go into the Genesis are gone, I ordered a new RF switch and I have the same problem. I've been itching to play this with sound for the longest time. Thanks again.Quote:
Originally Posted by evildragon
The power adapter is the only thing I know of to cause faulty sound.
You are using an official SEGA one, right? Or atleast one that is DC with the correct specs? (800ma or over atleast required at 9v to 9.5v)
Yeah, it's an official Sega adaptor. The thing is I have another model 1 sega adaptor which won't work in the model 2, it is currently running my NES.
model 1 sega power packs won't work on an model 2.
While the NES will take DC of any polarity as long as it's 9v, do NOT use an NES powerpack on the Genesis, as the NES has an "AC" adapter, not a DC one. this will instantly fry the genesis.
Yeah I know the model 1 adaptor won't work on a model 2 genesis. It's just now I have to wait, and I am sooooo tired of waiting.