Screen Upside Down

JerseyFresh

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I have a Rough Ranger Jamma cabinet that i use to test other boards in. The cabinet plays its original game fine, but every other Jamma board i plug in to test displays upside down on the screen. Whats the reason and whats the fix? Sorry im a "noob"
 
Most JAMMA boards have a dip switch setting to flip the image. It sounds like your RR board has been flipped, and then the yoke was changed to compensate it. That's why all the other boards are upside down. You can either change the yoke and the change the DS setting on your RR, or check the DS settings of the boards you plug in for the screen flip option...
 
You should also check the monitor chassis before doing the BR break the yoke connector. Some monitors have a second set of yoke pins to do the flipping for you. I know newer Pentranics have this and I think I have seen it on one of the late model chassis (Vision Pro or WG).

Also some of the WG monitors (4600?) have terminal lugs on the yokes, so you just need to swap the leads in the correct order. No need to break the yoke connector.

ken
 
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