Yamaha YC 45D pitch ribbon

Hello guys, im lookinf forward to buy a Yamaha YC 45D thats being sold at a good price near to where i leave. The only detail would be that the pitch or portamento ribbon is broken in 3 pieces, it has something like a spring inside but it looks like it has snapped in 3 pieces. Does anyone know if this is fixable or where to get an spare part? thanks!