Post a Pic of your CMVS, AES or Neo CD............

NeoKuroyume

Quiz Detective
Joined
Jan 6, 2002
Posts
81
Gotta give a shout out to xsq and Xian for help with the wiring on the sticks and ShoottheCore for help figuring out that the video encoder on the home cart was bad!
 

mmmonkey

Quiz Detective
Joined
Aug 6, 2008
Posts
83
Fancied making a CMVS recently. I know this casing has been done time and time again, but I really love the look of it.

Just waiting for a suitable power switch with an LED in it. Had a slip cutting the cart slot and now it’s bigger than it needs to be. There’s a few scratches on it - I’ll probably re-do the case at some point and properly protect it whilst doing the drilling and filing next time!







Thank you to Xian Xi for the tutorial on his site, NeoTurfMasta for the amazing NeoBiosMasta with VMC and Razoola for the unibios of course.
 

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,748
That enclosure was such a bitch to work with. I hated it so much I told people I'd never use it again unless there was a shop that could do the cutouts. Other than that, it is a nice enclosure.

Great job on yours dude!!
 

RAZO

Mayor of Southtown
15 Year Member
Joined
Dec 2, 2006
Posts
8,788
Fancied making a CMVS recently. I know this casing has been done time and time again, but I really love the look of it.

Just waiting for a suitable power switch with an LED in it. Had a slip cutting the cart slot and now it’s bigger than it needs to be. There’s a few scratches on it - I’ll probably re-do the case at some point and properly protect it whilst doing the drilling and filing next time!







Thank you to Xian Xi for the tutorial on his site, NeoTurfMasta for the amazing NeoBiosMasta with VMC and Razoola for the unibios of course.

That looks dope.
 

supergoose

Die Gans,
20 Year Member
Joined
Nov 16, 2001
Posts
4,042
Fancied making a CMVS recently. I know this casing has been done time and time again, but I really love the look of it.

Looks as if it was anodized after you cut the cart slot. If that is paint from a can, then I'm quite impressed. Good job, really.
 

Neogeoman106st

Crossed Swords Squire
Joined
Aug 29, 2017
Posts
191
My cmvs mv-1f

Finally finished my first cmvs. Its was great fun and i am very happy with how it turned out.
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B6F8BD46-8929-4B56-AD59-51FAC534AF6A.jpeg
 

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Jumpingmanjim

Cheng's Errand Boy
Joined
Dec 7, 2016
Posts
114
Hey i'm building a CMVS out of an MV-1B, just trying to work out how to power it. I know I need 5v obviously but how many amps will I need?
 

Yodd

Iori's Flame
20 Year Member
Joined
Feb 7, 2002
Posts
8,214
No more than 2.


edit:

And for clarification where I got that from, I just observed my JNX CMVS while using the NEOSD playing a game and it consumed 5 watts from the wall. Max wattage I observed was 6.2 watts while flashing a game. This was using a Kill-A-Watt meter.

So, doing some math, 6.2 watts divided by 5 volts output = 1.24 amps.

And considering these little wall wart power supples aren't 100% efficient, it's probably more like 80% of that. So more like 1 amp.


The MV1C and MV1B have similar power usages. So yeah, a 2 amp psu should be good. So unless you are cramming a super power hungry video encoder in there, you should be good.


IMG_0029.jpg
 
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Jumpingmanjim

Cheng's Errand Boy
Joined
Dec 7, 2016
Posts
114
No more than 2.


edit:

And for clarification where I got that from, I just observed my JNX CMVS while using the NEOSD playing a game and it consumed 5 watts from the wall. Max wattage I observed was 6.2 watts while flashing a game. This was using a Kill-A-Watt meter.

So, doing some math, 6.2 watts divided by 5 volts output = 1.24 amps.

And considering these little wall wart power supples aren't 100% efficient, it's probably more like 80% of that. So more like 1 amp.


The MV1C and MV1B have similar power usages. So yeah, a 2 amp psu should be good. So unless you are cramming a super power hungry video encoder in there, you should be good.

Thanks! Just what i needed to know.
 

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,748
Yup, just 2, I only use 3A because I also use them for AES as well. Don't go lower than 2A though as you want some breathing room on your power supply. You don't want it running close to max all the time.
 

Jumpingmanjim

Cheng's Errand Boy
Joined
Dec 7, 2016
Posts
114
My next (and hopefully final) question is how to attenuate the video output for the framemeister, I read somewhere that 500 ohm trimpots are a good idea, or is there a fixed value resistor I could use?
 

Yodd

Iori's Flame
20 Year Member
Joined
Feb 7, 2002
Posts
8,214
For a consolized MVS board there is no need for adjustable pots. Typically people use somewhere between 120 and 150 ohm resistors to bring the RGB levels down.

James can probably give you exact values.
 

xsq

Thou Shalt Not, Question Rot.,
Joined
Jan 17, 2013
Posts
7,414
ok, I don't see what's ghetto about that... a tidy PCB with some wires.
 

Jumpingmanjim

Cheng's Errand Boy
Joined
Dec 7, 2016
Posts
114
bazdAfY.jpg


My MV-1B is coming along nicely. Video is working, audio and controllers still to be done. Also the video has some snow, and i'm not sure why the lines along the bottom are wider than the rest.
 

joala

A Joala is for Life., Not Just Christmas.,
Joined
Oct 7, 2017
Posts
644
Man, that desk fan is gonna work wonders come Jan/Feb....
 

Dr. Meat

NEST Puppet
10 Year Member
Joined
Aug 19, 2012
Posts
172
IMG_20171120_185429.jpg
IMG_20171120_184058.jpg

Just about finished with these. Hopefully able to put them into production soon.
 

Ip Man

BBLLOOOO__HHAARRDDDDDD!!!!,
15 Year Member
Joined
Aug 14, 2006
Posts
4,334
well done, mate. they look pretty sweet.
 
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