The Sony AV-3600 service manual was what I needed for the repair of this unit
Thanks for the good service
Dave
Text excerpt from page 36 (click to view)
WM-D6C/TC-D6C
US Model
WM-D6C/TC-D6C
1-1.
1.
DIAGRAMS
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
WM-D6C/TC-D6C
Note on Printed Wiring Boards: � X : parts extracted from the component side. � Y : parts extracted from the conductor side. � z : Through hole. � : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)