Canon imageRUNNER ADVANCE C350 series Service Manual page 592

Boot System Error Diagnosis Tool covers the components shown in the red frame (solid line)
in the figure. Controller System Error Diagnosis Tool covers the components shown in the
blue frame (dotted line).
• Boot System Error Diagnosis Tool
This tool automatically checks the Control Panel, Main Controller PCB, All-night Power
Supply, and Non-all-night Power Supply, and notifies the result by the number of light-out
and blinking interval of the lamp on the Control Panel.
This tool is installed in the ROM of Main Controller PCB.
Therefore, regardless the version of MN-CNT, this tool can be used even when an error
occurs in child PCBs or when the Controller System Error Diagnosis Tool cannot be booted.
• Controller System Error Diagnosis Tool
This tool automatically checks the Main Controller PCB, child PCBs mounted on the Main
Controller PCB, and display the result on the Control Panel.
This tool is installed in Flash PCB.
Therefore, this tool cannot be used when an error occurred in Flash PCB.
6
Troubleshooting > Controller Self Diagnosis > Controller Self Diagnosis > Layout Drawing
6 Troubleshooting > Controller Self Diagnosis > Controller Self Diagnosis > Layout Drawing
■ Layout Drawing
Layout Drawing of PCBs Subject to Diagnosis
Backup Battery
Flash PCB
TPM PCB
SRAM PCB
6-81
Memory PCB
F-6-114
6-81