Kyocera Mita DC-1560, Service Manual

Page: 271 / 289

1AF
3-6-33
(12)
The halogen
lamp does not
light.
(13)
The halogen
lamp does not
turn off.
(14)
The cleaning
lamp does not
light.
(15)
The fixing
heater does
not turn on
(C61, C63).
Broken halogen
lamp filament.
Optical section
thermostat trig-
gered.
Poor contact in the
composite PCB
connector termi-
nals.
Defective main
PCB.
Defective compos-
ite PCB.
Defective main
PCB.
Defective compos-
ite PCB.
Broken cleaning
lamp coil.
Poor contact in the
cleaning lamp con-
nector terminals.
Defective main
PCB.
Broken fixing
heater wire.
Fixing unit thermo-
stat 1 or 2 trig-
gered.
Broken fixing unit
thermistor wire.
Check for continuity. If none, replace the
halogen lamp (see page 3-3-20).
See page 3-6-5.
If HL CONT (PWM) signal is always output
from CN4-5 on the main PCB, replace the
main PCB.
If the halogen lamp does not turn off when
no HL CONT (PWM) signal is input to CN2-7
on the composite PCB, replace the compos-
ite PCB.
Check for continuity. If none, replace the
cleaning lamp.
Check for continuity across the connector
terminals. If none, replace them.
Run simulation 10 and check if CN13-2 on
the main PCB goes low. If not, replace the
main PCB.
Check for continuity. If none, replace the
fixing heater (see page 3-3-57).
Check for continuity across each thermostat.
If none, remove the cause of blowing and
replace the thermostat.
Measure the resistance. If it is
∞ Ω
, replace
the fixing unit thermistor.
Problem Causes Check procedures/corrective measures