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 each of the sensors and motors
using the service mode.
1. Power Does Not Come ON
The power indicator is not lit.
Note:
Make sure you are using the power cord and AC adapter 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 cord
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 adapter
correctly.
Power button
4
Is the power button on?
NO
Turn the power button
on. Make sure it is set
to on, not to auto.
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 cable
correctly.
Front unit PCB
7
Is the cable connected?
YES
Replace the front unit
PCB.
Control
PCB
8
Does replacing the control
PCB fix the problem?
YES Done.
Table 5-401
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CANON ELECTRONICS INC. 2011 CANON DR-C125 FIRST EDITION
5-25