Vintage Zenith Data Systems Video Display Monitor ZVM-122A Powers READ

Description

AS IS MAY OR MAY NOT WORK FOR PARTS REPAIR NO RETURNS.
Plugged it in and it powers up. I don’t know much about the item but I fiddled with the front switches for the display and got it to show Orange and adjust. Has a high pitch noise while adjusting and on. The back little black switch is loose and moves as seen in pictures.
Comes as is as seen in images. Make sure to check out my page for more vintage toys, action figures, figurines, video games, electronics, games and more: https://www.ebay.com/sch/jake.on.break/m.html?_nkw=&_armrs=1&_ipg=&_from=