Strange monitor buzzing

Joined
Feb 9, 2002
Posts
48
My Wells Gardner monitor is making a strange buzz/crackle when I run my Neo Geo MVS. Stranger still, other boards I put into my Jamma Harness (CPS 2 for example) won't show at all and cause all sorts of painfull noises to come out of the monitor. When my MVS is running the picture is fine. Beautiful actually. I just don't like the sound of that buzz/crackle. It sounds very much like a 60 hz ground loop simmilar to what you would encounter with an improperly grounded electric guitar. I kinda' rigged the monitor connection up myself, and I'm not the best solder guy in the world, but all of the connections look solid to me and as I said, the picture is fine on the MVS. Any ideas what it might be?
 
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