Canon ImageFormula DR-9080C, Service Manual

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COPYRIGHT © 2003 CANON ELECTRONICS INC. CANON DR-6080/9080C FIRST EDITION OCT. 2003
CHAPTER 5 TROUBLESHOOTING
VI. O PERATIO N TRO UBLESH O O TING
When an operation problem occurs, first check for an Error Code on the counter display. In addition,
check the operation of the various sensors, motors and solenoids using the 'Service Modes'. For details on
the 'Error Codes' and 'Service Modes', refer to the corresponding sections.
1 No power
Note: Immediately after the AC power supply is turned off, the capacitor on the DC power supply PCB is
still charged, so wait 10 seconds or more after the AC power supply is turned off before you
connect/disconnect any connectors.
Cause/Faulty location Step Check item Result Action
Connection of power cord 1 Is the power cord connected? NO Connect it.
AC power supply voltage 2 Is the specified voltage being
supplied at the outlet? NO Explain to the
customer that the
trouble is not with the
machine.
Power switch 3 Does the power switch work
normally? NO Check the movement
of the power switch
shaft assembly.
4 Are J102 and J117 of
MAIN_DCON securely
connected? NO Check that they are
securely connected. Connectors related to the
DC power supply
5 Are CN1 and CN6 of DC power
supply PCB securely
connected? NO Check that they are
securely connected.
Connectors related to the
operation panel 6 Are J140 of MAIN_DCON and
J1201 of the operation panel
PCB securely connected? NO Connect them
securely. If the LED of
the operation panel
does not illuminate,
replace the operation
panel.
7 Does LED104 (+24V) of
MAIN_DCON illuminate? NO Replace the DC
power supply PCB. DC power supply PCB
8 Is the problem solved when the
DC power supply PCB is
replaced? YES End.
MAIN_DCON 9 Power Does LED101 (for CPU
operation check) flash, and
does LED106 (+5V) illuminate? NO Replace the
MAIN_DCON.
Table 5-601