Converting A CRT To LCD Monitor {CGA To VGA Conversion} 

Thank you very much! I'll look into them for my future projects! I'm always looking for better solutions for my builds and repairs.

Didn't notice that, but you're right. Thanks for letting me know, I don't like to give misleading or false info so I appreciate the heads up, I really do!

Or is the red wire still positive and black is ground ?

I don't but I can make one soon, you just need to make sure that the Red Green Blue Sync and Ground are attached to the correct pins.

You can use this convertor to go from CGA to VGA and yes there is a slight lag in the video when you do so but it's so minimal that it's hardly noticeable. Just make sure the convertor has proper voltages coming into the PCB and the Video Output is properly connected and you shouldn't have any issues.

try adding a 10k resistor to the sync wire

Yes you can, all you have to make sure of is that the video outputs from the JAMMA harness are connected properly to the CGA to VGA Convertor. If you can make sure those connections are done correctly then it should work just fine.

It is possible to do so, but I'm not as familiar with mobile phone displays as I am in arcade displays.

Sorry for such a late response. The first thing I'd look at with a flickering monitor is if any power wires are leaking into the video wires. AC Leakage can cause flickering like you're describing. The other issue I can think of off the top of my head would be either a bad connection somehwhere or an issue with the convertor board you're using. I've had bad convertor boards do the same as well.

The screen should automatically rotate because of the way the video signals are being sent from the PCB. The monitor does turn on automatically as long as you buy and Arcade Monitor or a Computer Monitor. Regular TV Monitors wont turn on automatically.

The 6th pin is probably a positive or negative sync, if so connect them together and that may help

sound is routed to the speaker via the harness directly off the game pcb. no change to sound.

It'll do it automatically, the game board is programmed to output a Vertical Video no matter the monitor it's displayed on. I'm running this game with the original PCB.