Tengugurl
Cheng's Errand Boy
- Joined
- Feb 9, 2017
- Posts
- 111
Hi everyone,
I am making a CMVS 4 slot (US model) and I got the board powered off of 5v+ 6AMP 30W working well enough minus Audio. The video signals are decent (Via the Jamma edge) - Well near the Jamma Edge (There must be a better location, please let me know if such a place exists)
Now I am onto to the Audio and I am piggybacking off the headphone 4 prong white adapter port on the left side of the board (near the Audio Caps). (Far left is Left Channel middle to prongs is Ground and far right is Right channel)
I am getting a very very faint sound from the board and I am assuming this is because I am not powering the 12v+ needed for the Stereo AMP (Something??).
I did a complete CAP kit a year back and if I place it back in its original CAB the audio is just fine through the stock speakers. So nothing is broken thank the old Gods and the new.
May I pick your brains?
1) How do I do a stereo mod for a MVH 4 slot?
2) Do I need to do the 5v+ mod? (What does this do for me benefit wise? http://www.jamma-nation-x.com/jammax/tutorials.html#MV45v
3) Do you have any pics of where I should solder for the R,G,B,SYNC signals on my board (Tried the Resistors and no dice, so I ended up soldering near the JAMMA edge)
4) Last silly question, will it hurt my board to have -5V going through the NEO GEO MVS PCB?
(This is a side question as I am only powering it through 5v+ 6AMP 30W but I have been curious if -5v to the JAMMA edge would do any harm) (If I put 12v in a 5v+ only modded PCB will it damage my system?)
As always,
Thank you so much for your help.
You are helping a Neo Geo Fan girl level up her soldering skills by +2 dexterity and 3+ intelligence +1 conversation abilities
I am making a CMVS 4 slot (US model) and I got the board powered off of 5v+ 6AMP 30W working well enough minus Audio. The video signals are decent (Via the Jamma edge) - Well near the Jamma Edge (There must be a better location, please let me know if such a place exists)
Now I am onto to the Audio and I am piggybacking off the headphone 4 prong white adapter port on the left side of the board (near the Audio Caps). (Far left is Left Channel middle to prongs is Ground and far right is Right channel)
I am getting a very very faint sound from the board and I am assuming this is because I am not powering the 12v+ needed for the Stereo AMP (Something??).
I did a complete CAP kit a year back and if I place it back in its original CAB the audio is just fine through the stock speakers. So nothing is broken thank the old Gods and the new.
May I pick your brains?
1) How do I do a stereo mod for a MVH 4 slot?
2) Do I need to do the 5v+ mod? (What does this do for me benefit wise? http://www.jamma-nation-x.com/jammax/tutorials.html#MV45v
3) Do you have any pics of where I should solder for the R,G,B,SYNC signals on my board (Tried the Resistors and no dice, so I ended up soldering near the JAMMA edge)
4) Last silly question, will it hurt my board to have -5V going through the NEO GEO MVS PCB?
(This is a side question as I am only powering it through 5v+ 6AMP 30W but I have been curious if -5v to the JAMMA edge would do any harm) (If I put 12v in a 5v+ only modded PCB will it damage my system?)
As always,
Thank you so much for your help.
You are helping a Neo Geo Fan girl level up her soldering skills by +2 dexterity and 3+ intelligence +1 conversation abilities
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