60 in 1 monitor issue (noob)

azteddykgb

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I set up a 60 in 1 jamma board with an LCD monitor. The video on the screen was odd. The best way to describe it was like small waves going behind the graphics. I replaced the card and my problem was solved. I recently had the same issue again with a different card, monitor and power supply, but it was intermittent. I could restart the machine and it worked fine about 30% of the time. I have eliminated the possibility of a faulty cord or a faulty monitor.
Could the power supply be causing this? If the voltage isn't exactly right, could the video be affected? The voltage was the only thing I didn't check when these issues came up.

I still have the two cards and I would like to resolve this issue. Thanks in advance for any help.
 
Power should not be an issue since you are using 110v from the wall, or tied to it through the PS.

Sounds to me that you do not have a good connection to the 60/1 pcb, ie. the video cable you are using.
 
What I meant was could the voltage affect the signal coming from the Jamma card. I changed out everything else with no luck, the cord, the monitor, ect. The only thing that corrected the problem was a new card. As I posted earlier, I did not try to adjust the voltage to see if that had any affect at all.
 
You should not have more than 5.2 going to the 60-in-1 pcb. If you are using a PC power supply, this shouldn't be a problem.

How are you powering the LCD - through the power supply or direct to an outlet? You may try running a ground wire from the PC power supply casing to the monitor case ground...
 
I'm powering the LCD and the PCB through an arcade power supply. I doubt grounding the monitor would work because when it first happened, I switched out the PCB and the issue went away.
 
I'm powering the LCD and the PCB through an arcade power supply. I doubt grounding the monitor would work because when it first happened, I switched out the PCB and the issue went away.

Just because one PCB was built with good grounding doesn't mean the other was. QC isn't always the best on these mass-produced Chinese products...
 
grnd

the 15 pin vga connection has a frame ground in it in most cases, and the 3 prong 120vac does also
the trick is getting in tune with the rest of the cabinet
sometimes, the game likes the frame ground running thru out it, sometimes it does not like have the frame ground connected to the power supply, and certain other parts for everything to work, seach post for "frame ground" or ground issues, or frame ground issues, and youll see the mixed results
 
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