Flow C: Main Controller Analysis Flow - Canon imageRUNNER ADVANCE C5255 Series Service Manual

Flow C: Main Controller Analysis Flow

■ Status Check
If the Main Controller 1 LED 9 and Main Controller 2 LED 4 cannot be turned ON, identify
the location of the failure according to the flow.
● Flow for narrowing down troubles
Pre-check items
• Check whether the Main Controller 1 and Main Controller 2 are connected properly to the
Riser PCB.
• Check whether the cables between the Main Controller 1 and the Control Panel are
connected properly.
If the Control Panel is not turned ON even after these checks, try identifying the location of
the failure through the following procedure.
6
Troubleshooting > Startup System Failure Diagnosis > Flow C: Main Controller Analysis Flow > Status Check
6 Troubleshooting > Startup System Failure Diagnosis > Flow C: Main Controller Analysis Flow > Status Check
- Check whether the Main Controller 1 and Main Controller 2
are connected properly to the Riser PCB.
- Check whether the cables between the Main Controller 1
and the Control Panel are connected properly.
Yes
Analysis complete
Yes
Visually check the
(1) (2) After turning OFF the power
Main Controller 1 LED 9
No
Is LED 9 ON?
Yes
(1)
After turning OFF the power
(2)
of the host machine, remove
the Main Controller 2 from
the host machine and turn OFF
the power of the host machine.
Replace the Main
Controller PCB1
6-114
Has the machine
normally started up?
No
Visually check the
(1)
Main Controller 2 LED 4
Is LED 4 ON?
No
of the host machine, remove
the Main Controller 2 from
the host machine and turn OFF
the power of the host machine.
Visually check the
Main Controller 1 LED 9
No
Is LED 9 ON?
Yes
(3)
No
E60Is E602 displayed?
(Wait about five minutes until it
is displayed)
Yes
Replace the Main Replace the Main
Controller PCB2 Controller PCB1
Restart the host machine
F-6-144
6-114