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2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 6 SELF DIAGNOSIS
6-31 T
E733
0001 A fault is detected by the main controller PCB in the communication be-
tween the DC controller PCB and the main controller PCB.
Main cause The connector has poor connection. The DC controller PCB is faulty.
Action
1. Connector, DC controller PCB
Is the connection between the connector J1015 on the main controller PCB
and the conductor J316 on the DC controlled PCB normal?
NO: Correct the connection.
YES: Replace the DC controller PCB.
E737
0000 During self diagnosis at power-on, the DRAM check finds a fault in the
main controller PCB.
Main cause The connection of the IC socket is faulty. The main controller PCB is faulty.
Action
1. Connection
Is the DRAM fitted to the socket securely?
NO: Fit the DRAM securely.
2. DRAM, Main controller PCB
Try replacing the DRAM. Is the problem corrected?
YES: End.
NO: Replace the main controller PCB.