WG K7000 Monitor Display Issue

[jklespies]

Hello Everyone,
I am brand new to this forum and brand new to working on old arcade games.

I just purchased a Speed Buggy Arcade Game and transported it home. When I plugged it in the right side of the display had a beveled look or fold. Not exactly sure what you call it. It runs about 2 inches wide vertically and stretches any image that enters that section of screen.

I have tried all possible adjustments I could find. I can get it out of the viewing area but that leaves a 2 inch black bar down the left side of the monitor.

Does anyone have any ideas on how I can diagnose and fix the problem? And ss there a technical term for this problem? I have searched thread after thread and this issue doesn't seem to be in any of them.

Thank you