44 4-404-40Disassembly/Assembly > Controller System > Removing the Engine Controller PCB > ProcedureDisassembly/Assembly > Controller System > Removing the Engine Controller PCB > Procedure2) Remove the Main Controller PCB [1].• 1 Screw (Binding) [2]• 5 Screws (black TP) [3]x6[1][2] [3] [3][3]■ After Replacing the Main Controller PCB• Check the version.Service mode > COPIER > DISPLAY > VERSIONWhen the version differs, execute upgrading.• Set country group.Service mode > COPIER > OPTION > BODY > LOCALE• Clear the data to enable the country group.Service mode> COPIER > FUNCTION > CLEAR > ALLThe machine will be automatically restarted.If USA, EUROPE, ASIA, or OCEANIA is selected as the country group, make selectionsfor “Language” and ”Select Country/Region” when the machine is restarted.• Make settings of system data as needed.• Import address book data from the PC (installation of address book data)F-4-63Removing the Engine Controller PCB■ Preparation1) Remove the Left Cover (Refer to page 4-27).2) Remove the Right Cover (Refer to page 4-28).3) Remove the Rear Cover (Refer to page 4-28).4) Remove the Speaker (Refer to page 4-51).5) Remove the Main Controller PCB (Refer to page 4-39).6) Remove the Communication PCB Unit (Refer to page 4-44).■ ProcedureNOTE:Between L100/L170/L174/L250/L150 CHN/L150 KOR/L154 model and L150 EUR/L150AUS model, the number of harnesses differs.• For L100/L170/L174/L250/L150 CHN/L150 KOR/L154 model, refer to step 2-1, 3-1.• For L150 EUR/L150 AUS model, refer to step 2-2, 3-2.1) Free the Ferrite Core [1] from the Wire Saddle [2].[1][2]F-4-64