Diagnosis Result; Controller System Error Diagnosis Table - Canon imageRUNNER ADVANCE C255 Series Service Manual

Diagnosis Result

Diagnosis Time
Diagnosis is completed in approx. 3 minutes.
The result is displayed on the Control Panel.
When the diagnosis result is normal
When an error is detected by diagnosis
Detailed information is displayed under the judgment result. In detailed information, the name of the test where the error was
detected is displayed.
How to view the error result
The following screen is an enlarged view of the detailed information indicated above.
Explanation of the detailed error information is described.
[NO] means that optional PCBs are not mounted.
A fault has occurred when [NO] is displayed irrespective of whether the Option PCB is attached.
[NG] means that an error occurred to PCBs mounted as standard.

Controller System Error Diagnosis Table

The error locations are identified according to the following table.
Test name Detailed test name
SN-1 MN- Check the SDRAM of
DDR3 SDRAM the Main Controller
PCB
SN-2 SM BUS Check the circuit in the
MN DDR3 On Main Controller PCB
Board
>> The result of Box checker is displayed below.
[no] : SN-9 PCI Configuration PCI-Bridge
[NG] : SN-13 TPM
[no] : SN-19 O-SDRAM
>> Please Turn off main switch.
Possible failure location
• Main Controller PCB
• Main Controller PCB
347
Remedy
Replacement of the Main Controller PCB
Replacement of the Main Controller PCB
6. Troubleshooting
Relevant er-
ror code
-
-