neogeo wires

werejag

Galford's Poppy Trainer
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May 3, 2005
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trying to wire up power and all the grounds to an atx power supply. picked up a atx extender for the female conector and have added a pson stitch . it powers up the psu. so what the minumum conections to power and ground for neo geo

*pictures please if at all possible so i can do it at work bench
 

Dalle

n00b
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Nov 9, 2004
Posts
43
ive wired all the connections possible into 4 wires if you look from 1 -> 28 it goes something like gnd (all 4 wired together) 5v (all 4 wired together) 12v ( 2 wired together) and at the end another gnd (all 4 wired togehter) so it fits just perfect in a molex connector :-)

edit: when i redo it (some time during the summer) im going to wire all 8 gnd together and connect all the lines in some kind of plug :-)
 
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werejag

Galford's Poppy Trainer
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thanks for the info. ill bare it in mind :)

atleast one person here still remebers what a comunity is. the rest seem to want to sell encoders or super guns instead of helping.
 

Dalle

n00b
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:shame: dont go bashing this community, they've helped me with most of my neo troubles

anyway glad i could help, i'll try and see if i can get a hold of a cam and take some pics of my bad soldering :-)
 

werejag

Galford's Poppy Trainer
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sorry just i wish i would have came back then now seems diffent. maybe im just asking the wrong questions.

sorry

i was looking for the minumum wires needed but ill guess ill look somewhere for that info.
 

Adamaki

Haomaru's Blade Shiner
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Oct 7, 2004
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678
I would be happy to try and help but I didn't really understand your question. I take it you are talking about mvs? You want to know what wires you have to connect to the JAMMA edge? Well you need to connect 5v, 12v and ground wires, usually one ground wire at each end of the JAMMA edge to be safe. I take it you have the JAMMA pinout?
 

werejag

Galford's Poppy Trainer
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so your saying just 4 wires to power it up and run a game? yes mvs and yes i have jamma and neogeo pinouts.

will the others grounds come from the motherboard ?
 

Dalle

n00b
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Nov 9, 2004
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43
yes, all you need is four wires and the board will boot :-)

edit: acutally, if you look at the last page in your manual it gives a pretty good idea of how you can wire it ;-)

what type of video output are you going to use?
 
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werejag

Galford's Poppy Trainer
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May 3, 2005
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using a home made 15khz rgb to svideo converter.

trying to find out if the ground for video needs to be tied to the power suply or does the board provide it.
 

stuffmonger

Baseball Star Hitter
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Mar 9, 2005
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I don't think the video ground is connected to the power supply directly...
 

Lime2K

Host for Orochi
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Jul 30, 2004
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762
the video ground goes to the monitor only, and the audio ground goes to the speakers only (on the neo, anyway). I have 4 ground lines to the PSU (from the low end of the JAMMA connector), 1 for the coinbox, 1 for test/service switch bundle, and 1 for each player's control bundle (all pulled from the high end of the JAMMA connector)
 

Dalle

n00b
Joined
Nov 9, 2004
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43
you just connect video gnd to video gnd on the jamma connector, and for audio ground use the same gnd as for the power
 
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