Kyocera KM-2530 Service Manual page 208

Problem
(27) Poor contact in the clean-
The cleaning lamp ing lamp connector termi-
does not turn on. nals.
Defective cleaning lamp.
Defective main PCB.
(28) Poor contact in the expo-
The exposure lamp sure lamp connector termi-
does not turn on. nals.
Defective inverter PCB.
Defective scanner drive
PCB.
Defective main PCB.
(29) Defective inverter PCB.
The exposure lamp
does not turn off.
Defective scanner drive
PCB.
(30) Broken wire in fixing
The fixing heater heater M or S.
does not turn on
Fixing unit thermostat trig-
(C6000).
gered.
(31) Broken fixing unit thermis-
The fixing heater tor wire.
does not turn off.
Dirty sensor part of the
fixing unit thermistor.
(32) Broken main charger wire.
Main charging is not
Leaking main charger
performed.
housing.
Poor contact in the high-
voltage transformer PCB
connector terminals.
Defective main PCB.
Defective high- voltage
transformer PCB.
(33) Poor contact in the high-
Transfer charging is voltage transformer PCB
not performed. connector terminals.
Defective main PCB.
Defective high-voltage
transformer PCB.
Causes
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check for continuity. If none, replace the cleaning lamp.
If the cleaning lamp turns on when CN9-B7 on the main PCB is
held low, replace the main PCB.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Run maintenance item U061 and check if the exposure lamp
turns on with CN1-1 and CN1-2 on the inverter PCB go low. If
not, replace the inverter PCB.
Run maintenance item U061 and check if the exposure lamp
turns on with CN1-3 on the scanner drive PCB goes low. If not,
replace the scanner drive PCB.
Run maintenance item U061 and check if CN37-3 on the main
PCB goes low. If not, replace the main PCB.
If the exposure lamp does not turn off with CN1-1 and CN1-2 on
the inverter PCB high, replace the inverter PCB.
If CN1-3 on the scanner drive PCB are always low, replace the
scanner drive PCB.
Check for continuity across each heater. If none, replace the
heater M or S.
Check for continuity across thermostat. If none, remove the
cause and replace the thermostat.
Measure the resistance. If it is ∞ Ω, replace the fixing unit ther-
mistor.
Check visually and clean the thermistor sensor parts.
See page 1-5-44.
See page 1-5-43.
Check procedures/corrective measures
2DF
1-5-55