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Hello guys,
I have a model 2 European console fitted with the 50/60hz, the language switches and connected to the TV with an RGB scart cable.
Here's the problem; even when I have it set to 60hz the picture is not quite full screen. There's a border on the right hand side of the screen and a small border along the top of the screen. I've tried the console on a different TV and it's still there.
Any suggestions as to what the problem might be? Bad scart cable?
What kind of TV are you playing on -- HD or CRT?
CRT.
I tried it on a HDTV as well and it's the same.
A photo would help.
Mine does that too. I presume it's normal. (Although I have a region-modded model 1 Japanese SMD, RGB SCART)
Yes. I'll get one up later on.Quote:
Originally Posted by Christuserloeser
It's normal.
It used to do the same with mine. The Megadrive outputs a weird video signal that is not 100% true to PAL standards.
You can correct this like I did by adjusting the TV screen's Horizontal and/or Vertical alignment. However, to do this you need to enter the hidden "service menu" of your TV set, which is only used by qualified repairmen. Entering this menu you can adjust many many small details, and also very noticeable ones like focus for example.
You can find secret codes to access your Service Menu on such pages:
http://www.riddledtv.com/forums/tv-s...codes-f13.html
However, be careful to write down any value before you change it so that you can reset it to stock factory setting if you screw it up.
Please be aware that some people have irremediably damaged their TV sets by attempting such things. I will not take any responsibility for your damaged TV if you F*** things up. Do this at your own risk. It worked for me and now the screen is perfectly aligned for use with the Mega Drive.
Here's what the image looks on my CRT now after the mod:
http://img.photobucket.com/albums/v7...t/P1020707.jpg
No borders anymore!
is that a screen shot of pier solar?
Yes! it is!:cool:
Note: I am completely unrelated to the fact that we have a friggin' VIKING in our game :P.
This character is awesome!
Aaargh! Please stop with the spoilers!!! :fit:
aw come on, this isn't a spoiler. It tells you nothing of the story.
You're referring to 'not 100% true PAL' because it clips the picture? Clipping has nothing to do with a video standard or the signal. It's called overscan and most TV BITD had poor overscan (as in, cheaper consumer models ones would cut some of the picture signal for the display). It's still PAL. A video signal is a video signal, irrelevant of a higher level layer of clipping. Game consoles took advantage of this fact because they didn't have to output video pixels on those clipped areas (processed pixels like sprites and BGs, solid colors are fine/take no resource and that's what you see). And so the video processor and cpu had more free resource to do things like updates and such.Quote:
Originally Posted by Barman
You're just setting your TV to old (and poor) overscan settings. But one need to be careful when doing this, as it might apply it to the whole TV input selection and not just the dedicate one your using for the MD/Genesis. And thus getting crappy overscan settings for ALL stuff watched on the TV (no good).Quote:
You can correct this like I did by adjusting the TV screen's Horizontal and/or Vertical alignment. However, to do this you need to enter the hidden "service menu" of your TV set, which is only used by qualified repairmen. Entering this menu you can adjust many many small details, and also very noticeable ones like focus for example.
No, I'm not referring to clipping the picture.
What happens when you plug a mega drive in a CRT (at least in Europe): the picture is slightly shifted to the left, which means that part of the picture on the left is actually hidden off-screen, and you have an empty border on the right which is sometimes in the color of the game's background.
Like, if you play Sonic or Golden Axe, you'll have a blue border (color of the sky) on the right of the screen, sometimes as big as 1 cm wide.
I'm not a technician at all, I can't go into technical talk because I don't have the knowledge but I hope that you have a better understanding of what I'm talking about.
You have the RGB? picture a bit to the left because it was done on purpose: the video encoding process adds some delay to the RGB lines, and when the sync pulse is added together (doesn't suffer from any delay) it will result on a centered picture (or at least more centered than RGB). The only solutions are shifting the sync signal by -16 pixels (around that), adjust the TV positioning settings, or use SVideo or lower.
Yes! I've got the RGB and you explained quite well what I was referring to. I didn't know it was the SYNC setting that corrects it. On the service menu of my TV, I don't remember that it was called like that. It must have been what I touched up since I achieved getting a centered picture without distorting the image.
I didn't know either that it was due to the nature of RGB.
I wasnt refering to the "Sync" option on the TV service menu on my first option :p. I meant it more like 3 options, the first being constructing a circuit that "antecipates" the sync signal by 16-ish pixels (or delays 420-16 ;))..
Ahh, RGB. Delayed sync so the encoder has time to convert the image relative to the sync. Well, delayed in the sense of the RGB out. Jorge, is there separate sync from the VDP than what's on the DIN/out connector? And is it Csync or two separate sync lines (H/V)? I.e. couldn't you tap/use those sync lines instead, to remove the delay?
Yes, the VDP produces H and V separate too (available at the cart slot), but they have the same pulse timing as CSync, so theyre kind of useless. The only good solution is building some delay circuit (utilising H only), and mix it with V to produce C. (messing with the TV service is crap, and SVideo and lower encodings is crap too, when RGB can be used :p)