I have a Schwinn Circuit that I got years ago from my father. I'm almost positive it is a 1987 or 1988 model based on when I remember him buying it.
It is red, with white leather seat and handle bars. It has a Sante gearing I believe and Cinelli handlebar. The frame is Columbus.
I don't have pictures right now, but hopefully this is sufficient to identify it. If so, what year is it? If not, what more information would be needed.