Upside down picture question

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    • Upside down picture question

      Hey guys, I scored this machine yesterday. I know it's not exactly a super sought after game but it means alot to me!



      Anyway, my question-It's obviously a conversion because the harness is JAMMA which goes to an adapter then to the Sega 16 pcb. The ESWAT game looks and works just fine. But I tried to hook up X-Men and the picture was upside down and backwards. I researched that this is the yoke plug and if the vertical and horizontal yoke connections are individually flipped around this will correct the screen. My idea was to put each vertical and horizontal on switches so I can switch between the two "poles" whenever a new game is hooked up that requires it. Is this pretty common? Is it a bad idea? help please

      The monitor is a Phillips 19VKUP22
    • Messing around with monitors while running could put stress on the monitor board. Definitely don't mess with anything high voltage. If they were designed to have the polarity switched while running they would have a built in switch. I have seen these yoke swapper switch kits before, but I wouldn't trust it myself. I'm glad in your case it was a simple software fix.
    • KaPH33n wrote:

      Messing around with monitors while running could put stress on the monitor board. Definitely don't mess with anything high voltage. If they were designed to have the polarity switched while running they would have a built in switch. I have seen these yoke swapper switch kits before, but I wouldn't trust it myself. I'm glad in your case it was a simple software fix.
      Interesting. I didn't realize there were kits for this situation.

      Also, how high is the voltage going through the yolk connectors that I would theoretically switch?