glad to have helped
glad to have helped
Is it supposed to take 4 millenia to load though?
it's only a single-speed CD-ROM drive, it reads no faster than 150Kbps...
Oh ok.
I bought a Japanese Sega Mega Drive 2 at eBay. However, the power supply that came with it is a US Genesis 2 power supply. I've been wondering, is it safe to use it on the Mega Drive 2?
I have a Step Up and Down Transformer that can switch 120V to 100V and vice versa. I'm not sure if I should use it because the Genesis power supply asks for 120V so this all confused me.
Any help would be appreciated. :)
well you live in the US, so it should be safe... it's the OUTPUT voltage you need to look for.. about 9v DC, and that's what the Genesis wants for DC in..
Thanks for your help.Quote:
Originally Posted by evildragon
I did some research and the output of the original power supply used in the Mega Drive 2 matches the power supply from the Genesis 2. Only difference is the input (100V and 120V)
So using a Step Up and Down Transformer is not necessary, right?
what is the input voltage on the powersupply you are using? you said it has a US powerbrick, so no, if it's US to US, then obviously we don't want to mess with any thing..
The hardware is the same..
Only thing you might have is a slightly darker picture, if japenese megadrive systems use NTSC-J, as their black level on the TV is different than ours..
Ahh that seems to clear everything up. I'm using the Genesis 2 power supply so I shouldn't need to worry about overheating issues since the output and hardware is the same. I noticed everything is running okay but I asked just to be safe.
Thanks for your advice, evildragon.
Really? Can this be remedied via TV settings or something?Quote:
Originally Posted by evildragon
I believe with Brightness..Quote:
Originally Posted by Blades
NTSC-J has a different black level than NTSC-M...
Yes, the brightness can fix it and the difference is pretty small so I wouldn't adjust it too much. Most people would never notice the difference.
You know, I wonder if american NTSC units also have the Japanese black level..
To be honest, all my NTSC Genny's are slightly darker than all my other consoles (except my PS2, which is too, darker than things like the Xbox, or SNES)
i am using the rf cords to connect my sega to my tv but the picture is unstable (looks like a damaged vhs tape where you can see the individual frames moving upwards) how can i fix this?
I'd buy a new non-RF cable. RF actually stands for Retarded Fucker, that's why nobody should use it (unless they really are retarded fuckers).
First post, I have some Genesis 2 RGB questions:
I finally received my scart to component converter box and gen 2 RGB cable from ebay today. The picture is washed out; looks like there's too much red and not enough green/yellow in the picture...Everything is hooked up properly, I even connected the genny to a different tv and another pair of component cables. Picture looks the same. I compared the composite output w/ the component and composite looks fine.
Do you think it's a faulty converter box or the genny scart cable? Is it also a possibility that the genesis is sending out a flawed rgb signal even though the rca looks fine? I really doubt this and think it's either the scart cable or converter unit.
Any ideas? When connected via component the sharpness and brightness are fine but the colors are way off.
For us to answer this, we need to know what converter box you are talking about, there's many versions.. Most of which have POTs in them for adjustments..
Another user here had the same problem.. Open up the box, there should be POTs on it... Joe Redifier should be able to walk you through with that, I don't know which POT is which, as I went a different route...
Thanks man. I opened the box and it has 6 individual pots with plastic slit tops for screwdriver adjustment. Problem is, no matter which combination of turns I make, it still looks like shit. Guess I'll mess around with it until J.R. shows up.
Edit: found this picture of the innards in another thread
http://ourworld.cs.com/airbikecop/DCP00466.JPG
I have that same box and I never needed to make any adjustments. Keep in mind that component video really isn't NTSC (except for the timing), so your picture may need to be adjusted. Try adjusting your TV settings to make the picture look good instead of the box itself. Your composite and S-video might be a bit off as a result. Also, make sure your SCART cable has resistors on it. Open up the SCART end (it should just snap open). Are there resistors attached to the wires? How many?
There are three resistors at the end of the scart cable (the wiring job is horrid btw). I tried to adjust the tv settings to no avail. I can't seem to get yellow (barely any green) out of the box no matter how I turn the pots.
Example: the intro cutscene at the beginning of Castlevania Bloodlines has yellow edges that scroll like sprocket holes in a film strip. I pulled the cart out of the genesis while powered on to freeze that scene (frame) and adjust. All I get is either red or blue, no yellow. My guess is I'm just getting RB instead of RGB.
Yeah, perhaps the green isn't getting a good connection somewhere. Probably coming out of the Genesis. Component video doesn't have green... your TV looks at the component video signal and basically whatever is missing is green.
Where did you get the Scart cable? IF you got the cable from NCSX... you got FUCKED. It doesn't work very well.
I know of a guy who sells quality scart cables for various consoles.
The issues I was having.. was due to the faulty cable.
So the inherent composite and RGB output of the genesis have nothing to do with each other right? It just seems funny that the composite works fine...What f'n sucks is I have no way of narrowing down the problem w/o buying duplicates of the suspect items (including the genesis).
Here's the scart cable I have: eGay scart cable
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.