Ricoh D146 Service Manual page 1801

6. Remove the SG3 board [A] from one of the CCU I/F and SG3 board assemblies that you
removed in step 5.
7. Attach the SG3 board removed in step 6 to the other CCU I/F and SG3 board assembly
[B].
8. Attach the boards (CCU I/F board and two SG3 boards) to the SG3 interface unit
bracket ( x 8).

Use two screws from the six screws that were removed in step 5.
9. Attach one end [A] of the flat cable to CN660 [B] on the CCU I/F board of the SG3
interface unit.

Make sure that the blue tape of the flat cable faces outward.
SM 25 D163