Sansui Schematics
If you have spec sheets or any other literature, please scan them at 150 dpi and send it to me via email.
Note: these linked images are LARGE.
These are the primary voltage changeover instructions for the AU-919, but they will work on most similar equipment from that era.
AU-X1 Service Manual
Zip file with all of the above
AU-919 Schematic
G-2000 Schematic
AU-3900 Schematic
AU-7900 Schematic
AU-111 Schematic
AX-7 Schematic
B-77 Schematic courtesy of Manfred Erhard
1000A Schematic
TU-70 Schematic
BA-3000 Service Manual