Evewalker
Active member
I have a small question question regarding audio rigging on a Neo Geo conversion. Any insight would be greatly appreciated.
This past weekend, I picked up a 2 slot conversion in rough shape for virtually nothing. It looks like somebody had dropped the guts of a MVS into an Atari Blasteroids cab. Everything appeared to be functional, except for the sound.
Anyway, after a great deal of cleaning and external repair, I started to tackle the wiring. My knowledge of cabs is limited (yet increasing), but it was pretty damn obvious why there was no sound. Turns out that the audio wires were disconnected and caked with solder. I cleaned the solder off, and took some photos, which are below.
Now, I know that for any stereo set up you need both L and R wires connected to the speakers, along with an extra ground. The strange part is that I can't seem to find a spare ground to run, and on top of that, the two speakers seem to have four separate wires connected via quick connects (two white, two colored) leading down into the cab. This is completely different from my other dedicated MVS systems.
What should I do to get this thing correctly wired for audio? I have a feeling that there is something simple I'm missing. I tested the audio through headphones via the jack, and it was crystal clear.
In addition, just to complicate things a bit, there is a third speaker in the cab, mounted on the front. This is also disconnected. Is there any practical way to make use of this additional speaker in a stereo setup, or should I just ignore it?
Here are a couple of photos to better show what I'm talking about:
http://www.thetemplegames.com/pub/audiowiring1.jpg
http://www.thetemplegames.com/pub/audiowiring2.jpg
Thanks everyone.
This past weekend, I picked up a 2 slot conversion in rough shape for virtually nothing. It looks like somebody had dropped the guts of a MVS into an Atari Blasteroids cab. Everything appeared to be functional, except for the sound.
Anyway, after a great deal of cleaning and external repair, I started to tackle the wiring. My knowledge of cabs is limited (yet increasing), but it was pretty damn obvious why there was no sound. Turns out that the audio wires were disconnected and caked with solder. I cleaned the solder off, and took some photos, which are below.
Now, I know that for any stereo set up you need both L and R wires connected to the speakers, along with an extra ground. The strange part is that I can't seem to find a spare ground to run, and on top of that, the two speakers seem to have four separate wires connected via quick connects (two white, two colored) leading down into the cab. This is completely different from my other dedicated MVS systems.
What should I do to get this thing correctly wired for audio? I have a feeling that there is something simple I'm missing. I tested the audio through headphones via the jack, and it was crystal clear.
In addition, just to complicate things a bit, there is a third speaker in the cab, mounted on the front. This is also disconnected. Is there any practical way to make use of this additional speaker in a stereo setup, or should I just ignore it?
Here are a couple of photos to better show what I'm talking about:
http://www.thetemplegames.com/pub/audiowiring1.jpg
http://www.thetemplegames.com/pub/audiowiring2.jpg
Thanks everyone.
