Ricoh D131 Service Manual page 917

20. Wrap the large ferrite core [A] around both harnesses and lock it.
21. Close the clamps on either end of the ferrite core [B] ( x2).
22. Set the two small clamps provided with the fax unit.
23. Set the speaker unit in the lower right corner (below the controller board) and fasten it to the
back of the machine ( x2).
24. Connect the harnesses between the FCU/G3 speaker unit and the fax unit ( x5, x2).
SM 25 D619