44 4-394-39Disassembly/Assembly > Controller System > Removing the Main Controller PCB > ProcedureDisassembly/Assembly > Controller System > Removing the Main Controller PCB > ProcedureRemoving the Main Controller PCB■ Before Replacing the Main Controller PCB• Check the version.Service mode > COPIER > DISPLAY > VERSION• Output the system data on a piece of paper as needed.Service mode> COPIER > FUNCTION > MISC-P > OUTPUT >SYS-DAT• Export address book data to the PC (backup of address book data)■ Preparation1) Remove the Left Cover (Refer to page 4-27).■ ProcedureNOTE:Between L100/L170/L174/L250/L150 CHN/L150 KOR/L154 model and L150 EUR/L150AUS model, the number of connectors to be disconnected differs.• For L100/L170/L174/L250/L150 CHN/L150 KOR/L154 model, refer to step 1-1.• For L150 EUR/L150 AUS model, refer to step 1-2.1-1) Disconnect the 3 Flat Cables [1] and the 6 connectors [2].x9[1][1][1][2][2][2]1-2) Disconnect the 3 Flat Cables [1] and the 5 connectors [2].x8[1][1][1][2][2][2]F-4-61F-4-62