Canon NP6320 Service Manual page 221

11. "E500" indication
Cause Step
Wiring 1
Circuit 2
breaker (CB1)
Power supply 3
PCB
Communica- 4
tions cable
DC controller 5
PCB, Sorter
controller
PCB
12. "E802" indication
Cause Step
Wiring 1
Power switch 2
(SW1)
DC controller
PCB
Note
You can check the automatic shut-off operation by service mode C20.
COPYRIGHT © 1999 CANON INC.
Checks
Does the problem disappear when the
power is switched OFF and then ON
again?
Does the problem disappear when circuit
breaker CB1 on the sorter controller PCB
is reset?
Set the meter to the 30VDC range, then
connect the (+) lead to J2-1 and the (−)
lead to J2-3 of the sorter PCB. Is the volt-
age approx. 24V?
Set the meter to the x10kΩ range. Is there
continuity between the sorter controller
PCB and the DC controller PCB?
Does the problem disappear when the DC
controller PCB or the sorter controller
PCB is replaced?
Checks
Is the wiring between J313-6 and -7 on the
DC controller PCB and the power switch
normal?
Check the power switch operation by
hand. Is it smooth?
CANON NP6320 REV.0 DEC. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 10 TROUBLESHOOTING
YES/
Action
NO
YES End. (Check the wiring
between the DC control-
ler PCB and the sorter
controller PCB.)
YES End. (Be sure to deter-
mined the reason why
CB1 tripped.)
NO Replace the power sup-
ply PCB.
YES Check if the cable be-
tween the sorter control-
ler PCB and the DC con-
troller PCB is connected
correctly. If it is normal,
replace the sorter con-
troller PCB.
NO Replace the communica-
tions cable.
YES End.
YES/
Action
NO
NO Correct the wiring.
NO Replace the switch.
YES Replace the DC control-
ler PCB.
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