Ricoh D146 Service Manual page 1800

3. Remove the rear cover [A] ( x 4).
4. Remove the "LINE2" [A] and "LINE3" [B] covers with a screw driver.
5. Remove the CCU I/F board and SG3 board [A] from the SG3 interface unit ( x 6).
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Do the same procedure as shown above for the second SG3 interface unit.
D163 24 SM