Schematic for vintage Grundig 5050 W/3D, suggestions?

I am looking for a schematic for a vintage Grundig 5050 W3D shortwave radio so that I can have it repaired to working condition. The radio was made in Germany in the mid-1950s, and I've unsuccessfully searched online for the manual/schematic. As someone new to vintage radios, I'd appreciate any advice and suggestionson how to find a schematic for this model. Thank you,

Mike N.
Raleigh, NC USA

Look for a Sam's Photofact on it.