Need soldering done

K

kruuth

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I need some work done on my single slot MVS. I want to put on the NEOVGA mod and I need to change the battery. Is there a list of people that can do this work?
 
Neodogg

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shoot Xian Xi or Big Bear a PM to see what their workload is...
 
Xian Xi

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Try Big Bear. My monitor isn't supported by the NEOVGA so I wouldn't be able to confirm it working when I'm done.
 
Neo Alec

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I'm a little curious why people do VGA when there's native RGB support. I guess people have specific monitor needs. Like those VGA monitors they started putting in cabs around Naomi times.
 
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kruuth

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Neo Alec said:
I'm a little curious why people do VGA when there's native RGB support. I guess people have specific monitor needs. Like those VGA monitors they started putting in cabs around Naomi times.
Click to expand...

Yep. Mine is vga.
 
J-P

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Neodogg said:
you could always get a scart to vga box:

http://www.ebay.com/itm/191845520434

FusionITR is a member here too.
Click to expand...

That's perfect if his monitor is 15kHz - but, as far as I'm aware, this box just outputs RGBHV (or whatever sync) via a VGA/Dsub out. If he's trying to get VGA out for 480p or higher he'll need the neoVGA board to get 31KHz. It's the only reason I can think of that makes sense anyway. Or alternatively a proper scaler / line doubler.
 
Neodogg

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J-P said:
That's perfect if his monitor is 15kHz - but, as far as I'm aware, this box just outputs RGBHV (or whatever sync) via a VGA/Dsub out. If he's trying to get VGA out for 480p or higher he'll need the neoVGA board to get 31KHz. It's the only reason I can think of that makes sense anyway. Or alternatively a proper scaler / line doubler.
Click to expand...

Look for the thread for the vga box here, I don't think the KHz matter...
 
Last edited:
J-P

J-P

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Sorry Neodogg - my search skills clearly aren't up to scratch (couldn't see any thread on a SCART>VGA box in here) - the original thread for the NeoVGA board is pretty solid.

I can get 480i out of the MVS at a push, but not higher without scaling/line-doubling.

The one in that ebay link is 15KHz (320x240 / low-res) only. That's all was all I was sayin'. If he bought that, he'd be a be in the same situ he is now but with different plugs.

If there is such a beast though, I'd be intrigued to take a peek, as it would be really useful. I have a Sony PGM that only does 31KHz (640x480 @ 60Hz). Decent RGB capable low res displays seem to be costly or rare as hen's teeth (round these parts at least).
 
Neodogg

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Last edited:
Xian Xi

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Neo Alec said:
I'm a little curious why people do VGA when there's native RGB support. I guess people have specific monitor needs. Like those VGA monitors they started putting in cabs around Naomi times.
Click to expand...

The NeoVGA does RGB(15), VGA(31), Component(240) and Component(480) iirc. Plus can do scanlines.
 
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kruuth

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Yes that's the main reason I got it. I'm at my wits end here. The guy that did it has done several mods for me without any issues whatsoever and this is the first time I've had a problem. I can't do them myself b/c I have limited motor control in my hands. He's copied everything in the install documents, all the way down to the exact coax wire in the pictures but we are still having this rolling issue:

https://www.youtube.com/watch?v=D0fKtJ4ac28

Is it possible that the board itself is bad?
 
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buaku

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Got any pics of the board all wired up?

Have you tried emailing mikejmoffitt?
 
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buaku

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Ahh ok. Does anything happen if you start jiggling wires on the board?
 
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kruuth

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No. It's pretty solid.

I'm not an expert here, but why do we need so many red/green/blue wires? Wouldn't a single one be sufficient?

buaku said:
Ahh ok. Does anything happen if you start jiggling wires on the board?
Click to expand...
 
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buaku

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I think each line represents 1 bit of data or something like that.

If you're able you could bust out the multimeter and test all the connections...make sure everything's connected and nothing is shorted.

I would have no idea how to tell if the NeoVGA is bad or not. Does the NeoVGA board have an lights light up when it's running?

Maybe a dumb question but does the video off the JAMMA edge still work properly?
 
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kruuth

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Yeah it works why? I've checked all the lines and they seem stable.


buaku said:
I think each line represents 1 bit
of data or something like that.

If you're able you could bust out the multimeter and test all the connections...make sure everything's connected and nothing is shorted.

I would have no idea how to tell if the NeoVGA is bad or not. Does the NeoVGA board have an lights light up when it's running?

Maybe a dumb question but does the video off the JAMMA edge still work properly?
Click to expand...
 
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buaku

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Just wondering if maybe something got damaged while the NeoVGA was being installed.
 
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