I have some "vintage" f201 cars I an putting back together for fun. I really want to use my old airtronics m8 radios, but the displays are not working on two of them. I know airtronics is no longer, but does anyone know where I could send them to be fixed? Or does anyone know of how I can fix myself? I have searched online and found nothing thank you!

Try contacting Desoto Racing / Serpent America. They are the Sanwa U.S. importer and handle warranty and repair.