Track and Field Graphics Problem

I have a Track and Field board that has red horizontal lines through the
entire image. The red lines appear to be ever other horizontal line. The
game plays fine except for this. I have reseated all of the socketed chips
and checked all of the 2114 RAMs by piggy-backing a good chip. Could it be
the 2148s?? Are those in the graphics section?? Any help would be
appreciated.

Hans