Looks more to me like one of the Schwinn bikes imported from Japan instead of made in Chicago. The bikes made in the Chicago factory which I once drove by years ago were welded frames, not brazed frames like the one in the picture. Here's a post that may lead you to more information. It confirms that Schwinn was still buying bikes from Panasonic and Bridgestone in 1984.
https://www.bikeforums.net/classic-v...-schwinns.html