Sharp MX-4100N Service Manual page 304
Digital full color multifunctional system
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Also See for MX-4100N:
- Operation manual (903 pages) ,
- Quick start manual (120 pages) ,
- Software setup manual (44 pages)
Table of Contents
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H2-00
Thermistor open trouble
(TH_UM_AD2)
Trouble content
Detail
PCU
Cause
Thermistor trouble.
PCU PWB trouble
Connection trouble of the connector and the
harness.
Fusing unit not installed.
Check & Remedy
Replace the thermistor.
Replace the PCU PWB.
Check connection of the connector and the harness.
H2-01
Thermistor open trouble (TH_LM)
Trouble content
Detail
PCU
Cause
Thermistor trouble.
PCU PWB trouble.
Connection trouble of the connector and the
harness.
Fusing unit not installed.
Check & Remedy
Replace the thermistor.
Replace the PCU PWB.
Check connection of the connector and the harness.
H2-02
Thermistor open trouble (TH_US)
Trouble content
Detail
PCU
Cause
Thermistor trouble.
PCU PWB trouble.
Connection trouble of the connector and the
harness.
Fusing unit not installed.
Check & Remedy
Replace the thermistor.
Replace the PCU PWB.
Check connection of the connector and the harness.
H2-03
Compensation thermistor open
trouble (TH_UM_AD1)
Trouble content
Detail
PCU
Cause
Thermistor trouble.
PCU PWB trouble
Connection trouble of the connector and the
harness.
Fusing unit not installed.
Check & Remedy
Replace the thermistor.
Replace the PCU PWB.
Check connection of the connector and the harness.
H2-04
External heating thermistor open
(TH_EX1)
Trouble content
Detail
PCU
Cause
Thermistor trouble.
PCU PWB trouble.
Fusing section connector connection trouble.
Power unit trouble.
Check & Remedy
Check the connector and the harness between the
thermistor and the PCU PWB.
Replace the thermistor.
Replace the power unit.
MX-5001N SELF DIAG AND TROUBLE CODE 7 – 18
H2-05
External heating thermistor open
(TH_EX2)
Trouble content
Detail
PCU
Cause
Thermistor trouble.
PCU PWB trouble.
Connection trouble of the connector and the
harness.
Check & Remedy
Replace the thermistor.
Replace the PCU PWB.
Check connection of the connector and the harness.
H3-00
Fusing section high temperature
trouble (TH_UM)
Trouble content
Detail
PCU
Cause
The fusing temperature exceeds the specified level.
Thermistor trouble.
PCU PWB trouble
Connection trouble of the connector and the
harness.
Power unit trouble.
Check & Remedy
Use SIM5-2 to check the flashing operation of the
heater lamp.
Use SIM14 to cancel the trouble.
Replace the thermistor.
Replace the PCU PWB.
Check connection of the connector and the harness.
Replace the power unit.
H3-01
Fusing section high temperature
trouble (TH_LM)
Trouble content
Detail
PCU
Cause
The fusing temperature exceeds the specified level.
Thermistor trouble.
PCU PWB trouble.Harness and connector
connection trouble.
Power unit trouble.
Check & Remedy
Use SIM5-2 to check the flashing operation of the
heater lamp.
Use SIM14 to cancel the trouble.
Replace the thermistor.
Replace the PCU PWB.
Check connection of the connector and the harness.
Replace the power unit.
H3-02
Fusing section high temperature
trouble (TH_US)
Trouble content
Detail
PCU
Cause
Thermistor trouble.
PCU PWB trouble.
Fusing section connector connection trouble.
Power unit trouble.
Check & Remedy
Use SIM5-2 to check the flashing operation of the
heater lamp.
Use SIM14 to cancel the trouble.
Replace the PCU PWB.
Check connection of the thermistor and the harness.
Replace the power unit.
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