Line of blinking dots when playing on Sega Multimega
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Line of blinking dots when playing on Sega Multimega         


Author: qzar
Date: Oct 28, 2006 08:46

Hi,

I purchased a Sega Multimega off an auction, its supposed to only have
been used about three times. When playing most games a line of blinking
dots appear at the bottom part of the screen. CD or cartridge games
makes no diffrence and the problem seems mostly related to non playable
sequences and cutscenes.

Any ideas of a solution, simply cleaning the lens wouldnt help, would
it? The cart games are also affected as mentioned.
26 Comments
Re: Line of blinking dots when playing on Sega Multimega         


Author: blackevilweredragon
Date: Oct 28, 2006 09:51

qzar wrote:
> Hi,
>
> I purchased a Sega Multimega off an auction, its supposed to only have
> been used about three times. When playing most games a line of blinking
> dots appear at the bottom part of the screen. CD or cartridge games
> makes no diffrence and the problem seems mostly related to non playable
> sequences and cutscenes.
>
> Any ideas of a solution, simply cleaning the lens wouldnt help, would
> it? The cart games are also affected as mentioned.

That's totally normal.. It's how the VDP works in the Genesis,
specifically with the color palette..

http://img.photobucket.com/albums/v395/Evilweredragon/sega.jpg

That's my old TV tuner capture of my Genesis.. notice the junk at the
bottom...
25 Comments
Re: Line of blinking dots when playing on Sega Multimega         


Author: BelPowerslave
Date: Oct 28, 2006 11:57

>> I purchased a Sega Multimega off an auction, its supposed to only have
>> been used about three times. When playing most games a line of blinking
>> dots appear at the bottom part of the screen. CD or cartridge games
>> makes no diffrence and the problem seems mostly related to non playable
>> sequences and cutscenes.
>>
>> Any ideas of a solution, simply cleaning the lens wouldnt help, would
>> it? The cart games are also affected as mentioned.
>
> That's totally normal.. It's how the VDP works in the Genesis,
> specifically with the color palette..
>
> http://img.photobucket.com/albums/v395/Evilweredragon/sega.jpg
>
> That's my old TV tuner capture of my Genesis.. notice the junk at the
> bottom...
>
Show full article (1.04Kb)
24 Comments
Re: Line of blinking dots when playing on Sega Multimega         


Author: qzar
Date: Oct 28, 2006 12:58

BelPowerslave skrev:
>>> I purchased a Sega Multimega off an auction, its supposed to only have
>>> been used about three times. When playing most games a line of blinking
>>> dots appear at the bottom part of the screen...
Show full article (1.29Kb)
23 Comments
Re: Line of blinking dots when playing on Sega Multimega         


Author: blackevilweredragon
Date: Oct 28, 2006 15:49

As a Genesis programmer, and hacker, it's just how the VDP works..
Matter of fact, it's usually not viewable, because it usually gets
caught up in "overscan".. The JVC Xeye should show them too, it uses
the same VDP, you just may not see it because of overscan.. (modern TVs
and flat panels have less overscan, so it's more viewable these days)

qzar wrote:
> BelPowerslave skrev:
>
>>>> I purchased a Sega Multimega off an auction, its supposed to only have
>>>> been used about three times. When playing most games a line of blinking
>>>>...
Show full article (1.72Kb)
22 Comments
Re: Line of blinking dots when playing on Sega Multimega         


Author: BelPowerslave
Date: Oct 29, 2006 19:37

> As a Genesis programmer, and hacker, it's just how the VDP works..
> Matter of fact, it's usually not viewable, because it usually gets
> caught up in "overscan".. The JVC Xeye should show them too, it uses
> the same VDP, you just may not see it because of overscan.. (modern TVs
> and flat panels have less overscan, so it's more viewable these days)

Man, I'm glad I can't see it...it'd drive me nuts!

Bel

--
Whip Ass Gaming: http://www.whipassgaming.com/

"Time to rub your face in it...with my ass. I'm so much better than you."
- Trixie, Outlaw Volleyball
21 Comments
Re: Line of blinking dots when playing on Sega Multimega         


Author: Scott H
Date: Oct 30, 2006 15:21

BelPowerslave wrote:
>> As a Genesis programmer, and hacker, it's just how the VDP works..
>> Matter of fact, it's usually not viewable, because it usually gets
>> caught up in "overscan".. The JVC Xeye should show them too, it uses
>> the same VDP, you just may not see it because of overscan.. (modern TVs
>> and flat panels have less overscan, so it's more viewable these days)
>
> Man, I'm glad I can't see it...it'd drive me nuts!
>
> Bel
>

Yeah, I don't know how this is visible, it should be off the screen for
him. I've noticed that my Genesis 2 will show this crud when I'm making
movies through my AiW, but not on a TV set. The OP might try fiddling
with the screen settings to see if he can't lower the screen about ten
pixels, so the line is no longer visible.

20 Comments
Re: Line of blinking dots when playing on Sega Multimega         


Author: BelPowerslave
Date: Oct 30, 2006 19:31

>> Man, I'm glad I can't see it...it'd drive me nuts!
>>
>> Bel
>>
>
> Yeah, I don't know how this is visible, it should be off the screen for
> him. I've noticed that my Genesis 2 will show this crud when I'm making
> movies through my AiW, but not on a TV set. The OP might try fiddling
> with the screen settings to see if he can't lower the screen about ten
> pixels, so the line is no longer visible.

Oh, hey, that's true, I've also seen them back when I was getting video
off stuff with the AiW card. I wonder what it is that makes the AiW show
that...

Bel
--
Whip Ass Gaming: http://www.whipassgaming.com/

"Time to rub your face in it...with my ass. I'm so much better than you."
- Trixie, Outlaw Volleyball
19 Comments
Re: Line of blinking dots when playing on Sega Multimega         


Author: blackevilweredragon
Date: Oct 31, 2006 09:36

BelPowerslave wrote:
>>> Man, I'm glad I can't see it...it'd drive me nuts!
>>>
>>> Bel
>>>
>>
>> Yeah, I don't know how this is visible, it should be off the screen for
>> him. I've noticed that my Genesis 2 will show this crud when I'm making
>> movies through my AiW, but not on a TV set. The OP might try fiddling
>> with the screen settings to see if he can't lower the screen about ten
>> pixels, so the line is no longer visible.
>
> Oh, hey, that's true, I've also seen them back when I was getting video
> off stuff with the AiW card. I wonder what it is that makes the AiW show
> that...
>
> Bel
> --
> Whip Ass Gaming: http://www.whipassgaming.com/
> ...
Show full article (1.24Kb)
18 Comments
Re: Line of blinking dots when playing on Sega Multimega         


Author: Scott H
Date: Oct 31, 2006 19:42

blackevilweredragon@gmail.com wrote:
> BelPowerslave wrote:
>>>> Man, I'm glad I can't see it...it'd drive me nuts!
>>>>
>>>> Bel
>>>>
>>> Yeah, I don't know how this is visible, it should be off the screen for
>>> him. I've noticed that my Genesis 2 will show this crud when I'm making
>>> movies through my AiW, but not on a TV set. The OP might try fiddling
>>> with the screen settings to see if he can't lower the screen about ten
>>> pixels, so the line is no longer visible.
>> Oh, hey, that's true, I've also seen them back when I was getting video
>> off stuff with the AiW card. I wonder what it is that makes the AiW show
>> that...
>>
>> Bel
>> --
>> Whip Ass Gaming: http://www.whipassgaming.com/
>>
>> "Time to rub your face in it...with my ass. I'm so much better than you." ...
Show full article (1.48Kb)
17 Comments
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