Is +12V needed on a one slot ?

thegreathopper

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I read somewhere a one slot mvs only needs +5v and ground and not +12v,Is this true?
 

Amano Jacu

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That's not true. Where did you read that? A 1-slot needs +12V, +5V and GND.

Check <a href="http://www.hardmvs.com" target="_blank">www.hardmvs.com</a> for more info and download the manuals for most MVS boards.
 

Nightmare Tony

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The +12 volts runs the sound analog and amplifier and some final sound circuitry and is NOT required for the rest of the Neo Geo to operate. this means you can run +5 volts only, but won't have any sound.
 

thegreathopper

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Thanks Tony,I will have to try it out to see if the headphone or pre amp outputs work..
 
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In other words.... in a cab you need 12V, in a supergun you shouldn't need it.

Err, don't MVS boards require -5V in a cab too? Pretty sure this is unnecessary in sg though ;)
 

MKL

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Originally posted by eggplant_casserole:
<strong>In other words.... in a cab you need 12V, in a supergun you shouldn't need it.</strong><hr></blockquote>

So sound is a superfluous thing to you...

[ August 04, 2002: Message edited by: MKL ]</p>
 
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err no... but we're talking about a SUPERGUN. Superguns output to tv. Now unless you live in a backwards country, all TVs capable of taking in a RGB or S-VID signal ALSO have speakers... and amps! Hence NO amp is needed - all you do is feed the unamplified signal out, doi! Just like a PC ;) or a seperates CD player, tape player, tuner.......

Secondly, a lot of gamers realise that your TV has shite sound, and a hi-fi has a better amp than either, so you'd benefit more from going into a hi-fi.
 

RATM

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Originally posted by eggplant_casserole:
<strong>err no... but we're talking about a SUPERGUN. Superguns output to tv. Now unless you live in a backwards country, all TVs capable of taking in a RGB or S-VID signal ALSO have speakers... and amps! Hence NO amp is needed - all you do is feed the unamplified signal out, doi! Just like a PC ;) or a seperates CD player, tape player, tuner.......

Secondly, a lot of gamers realise that your TV has shite sound, and a hi-fi has a better amp than either, so you'd benefit more from going into a hi-fi.</strong><hr></blockquote>

great so that means there is an easy way to not kill your TV speakers
 
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Yes but its killing in the name of... neo gaming! lol sorry :p

Indeed there is..... for all those who haven't discovered the buttons marked VOL +/- ;)
 

MKL

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Well, wiring stereo boards (like a MVS multislot) seems pretty easy, either via two RCA jacks (like in JHendrix's supergun) or via the relevant pins in a scart cable (in European superguns).
But what about wiring a normal, non-stereo Jamma board? OK, a scart socket does have a mono pin (no. 3 or 6, I think) but if I were to use RCA jacks how would I wire them? Should I just run a wire from + and - on the jamma harness to one RCA jack (thus getting sound from one speaker?) or to two in a parallel manner?
Please enlighten me, thanks.
 

MKL

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Originally posted by thegreathopper:
<strong>So where would I pick up the un-amplified out puts on a one slot mvs..</strong><hr></blockquote>

The sound outputs remain the same, so in a 1-slot it's pin L (-) and 10 (+). If +12v is not connected to the PCB they will be unamplified.
 
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