Canon NP6512 Service Manual page 352

CHAPTER 11 TROUBLESHOOTING
3 E002, E003
Cause Step
Thermistor 1
(TH1)
Heater, 2
Fuse (FU2)
Thermistor 3
(TH1)
Composite 4
power
supply PCB
DC control-
ler PCB
4 E010
Cause Step
Wiring 1 1
Wiring 2 2
DC power 3
supply
Main motor 4
(M1)
DC control-
ler PCB
11-66
COPYRIGHT © 1999 CANON INC.
Checks
Is the connection of J102 on the DC
controller PCB and the wiring to the
thermistor (TH1) normal?
Is there electrical continuity between
J207-1 and -2 on the fixing heater
side?
Replace the fixing assembly upper
unit. Is the problem corrected?
Replace the composite power supply
PCB. Is the problem corrected?
Checks
Are the connection of J205 on the
composite power supply PCB and the
wiring to the main motor (M1) nor-
mal?
Is the wiring from J203 and J202 on
the composite power supply PCB to
J103 and J105, respectively, on the DC
controller PCB normal?
Turn on the power switch. Is the
voltage between J901-1 (+) and -2 (-)
on the main motor drive PCB about 24
V?
Replace the main motor (M1). Is the
problem corrected?
CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
YES/NO Action
NO Correct the connection
of J102 on the DC
controller PCB and the
wiring to the ther-
mistor (TH1).
NO Check the wiring from
the composite power
supply PCB to the
fixing heater; if
normal, replace the
fixing upper unit.
YES End.
YES End.
NO Replace the DC
controller PCB.
YES/NO Action
NO Correct the connection
of J205 on the com-
posite power supply
PCB and the wiring to
the main motor (M1).
NO Correct the connection
and wiring of the
connectors.
NO Check the wiring from
the main motor driver
PCB to the composite
power supply PCB; if
normal, see "DC
power fails to turn
on."
YES End.
NO Replace the DC
controller PCB.