COPYRIGHT
©
2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001
CHAPTER 6 TROUBLESHOOTING
6-126
4.1.66 E733
Wiring
1) Is the connector and the cable between the main controller PCB
and the DC controller PCB normal?
NO: Correct the connectors and the cable.
DC controller PCB
2) Try replacing the DC controller PCB. Is the problem corrected?
YES: End.
NO: Replace the main controller PCB.
4.1.67 E737
SDRAM
1) Is the SDRAM on the main controller PCB mounted properly?
NO: Mount the SDRAM properly.
SDRAM
2) Try replacing the SDRAM. Is the problem corrected?
YES: End.
NO: Replace the main controller PCB.
4.1.68 E740
Ethernet card
1) Is the Ethernet card mounted properly?
NO: Mount the card properly.
Ethernet card
2) Try replacing the Ethernet card. Is the problem corrected?
YES: End.
NO: Replace the main controller PCB.
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