Scan are good quality and overall just what i was looking for. Thanks!
Text excerpt from page 10 (click to view)
2-3. Electrical Parts List
BKDS-7080/7081 AUX BUS Remote Panel
No. 1 2 3 4 Board name CPU-306 KY-469A KY-469B KY-469C Circuit function System Control Board Switch Board Switch Board Switch Board Model name BKDS-7080/7081 BKDS-7080 BKDS-7081 BKDS-7081 Page 2-7 2-9 2-10 2-12