45
TROUBLESHOOTING
3) If R DEF Sensor has trouble
Bad contact of connector/Insert correctly
Is Main PCB Connector
CN30 inserted correctly?
Is R DEF Sensor unit normal?
Is the voltage between
Main PCB Connector CN30- #4(Orange) and REG1,
Heat Sink normal?
Is the input
voltage of IC10 MICOM # 54
normal?
Start
NO
YES
YES
YES
YES
Replace the temperature sensor
NO
Recheck the wire connection part
NO (0.6V > Measurement < 4.6V)
Check the Cold solder joint,
short, solder Touch
NO
No trouble with PCB and temperature sensor
Recheck the bad contact of the connector.
** Measuring point of resistance value according to
Sensor **
R-DEF : CN30 #4 ↔ #8 Measure the resistance value
** ∞Ω : Short trouble / ∞Ω : Open trouble
Sensor MICOM/Connector Number
Voltage is measured between 4.6V ~ 0.6V
Voltage of IC10 MICOM #54 is same with the
measuring voltage of CN30-#4(Orange), REG1,&
Heat Sink from PCB common Ground part.
→ Check the measure on MICOM or, Sensor
Marking #2(R303).
DATA1.
Temperature Table
ERROR Code
Refer to circuit diagram in the manual
R DEF
Connector CN30-#4(Orange) and REG1
Heat-Sink PCB common Ground
Start
YES
YES
YES
☞ Checking method of R DEF Sensor resistance
CN30-#4(Orange) ↔ #8(Gray)
-. Compare with temperature table after measuring.
☞ Check method of R DEF Sensor voltage
-.
Measure the voltage of Sensor Check Point #2(IC10 MICOM
#54) on PCB or CN30-#4(Orange) ↔ REG1, Heat Sink.
-. Compare with temperature table after measuring.
Below is the measuring voltage of CN30-"4"(Orange) ↔ REG1, Heat Sink
Common PCB
Ground of REG1 Heat Sink
NW-미주향-AC 2010.6.8 3:47 PM 페 이 지 4 5 i n
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