COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001CHAPTER 6 TROUBLESHOOTING6-1264.1.66 E733Wiring1) Is the connector and the cable between the main controller PCBand the DC controller PCB normal?NO: Correct the connectors and the cable.DC controller PCB2) Try replacing the DC controller PCB. Is the problem corrected?YES: End.NO: Replace the main controller PCB.4.1.67 E737SDRAM1) Is the SDRAM on the main controller PCB mounted properly?NO: Mount the SDRAM properly.SDRAM2) Try replacing the SDRAM. Is the problem corrected?YES: End.NO: Replace the main controller PCB.4.1.68 E740Ethernet card1) Is the Ethernet card mounted properly?NO: Mount the card properly.Ethernet card2) Try replacing the Ethernet card. Is the problem corrected?YES: End.NO: Replace the main controller PCB.
