Sonic Frontiers SFS-80 schematic diagram

[Tchoy668]

Hi,

I just received a faulty unit of SF SFS-80 from friend, would like have a schematic diagram to repair it, does anyone has the diagram to share?
Thank you, Curtis

 

[JonSnell Electronic]

You will find information here;
https://www.radiomuseum.org/r/sonicfront_sfs_80.html