Update : https://www.ebay.com/str/pumazo
I found it on eBay.
Try this link for old Fanuc 0 series schematic circuit sheet.
CNC-EDM-DRO items - Get great deals on items on eBay Stores!
Similar Threads:
Update : https://www.ebay.com/str/pumazo
Schematic Electronics circuit diagrams in Big book of
FANUC Series 16 Model B - Series 160 Model B Circuit Diagram for Maintanance Book.
https://www.ebay.com/itm/274414495785
Free download FANUC 10-11-12 M/T Maintenance manual
http://store.payloadz.com/go?id=2648541