CHAPTER 5 TROUBLESHOOTING
IV. OPERATION TROUBLESHOOTING
When an operation problem occurs, check the error message displayed on the display
connected to a computer. Also perform an operation check on the sensors and motors using the
service mode.
1. Power Does Not Come ON
The power indicator is not lit.
Note:
Make sure to use the AC adapter and power cord supplied with the machine.
Cause/Faulty
Locations
Step
Check Item
Result
Action
Connection of power
cord
1
Is the power cord
connected?
NO
Connect the connectors
correctly.
AC power supply
voltage
2
Is the power outlet
supplying power at the
rated voltage?
NO
Explain to the user that
this is not a problem with
the machine.
Connection of AC
adapter
3
Is the AC adapter
connected?
NO
Connect the connectors
correctly.
Power button
4
Is the power button on?
NO
Turn the power button
on.
Power cord
5
Does replacing the power
cord fix the problem?
YES Done.
AC
adapter
6 Does replacing the AC
adapter fix the problem?
YES Done.
NO
Connect the connectors
correctly.
Control PCB
Operation PCB
7
Is the cable connected?
YES
Replace the PCB.
Table 5-401
5-38
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CANON ELECTRONICS INC. 2011 CANON DR-M140 FIRST EDITION