79
TROUBLESHOOTING
3) If R Sensor has trouble
ERROR Code
Bad contact of connector/ insert correctly
Is MAIN PCB
Connector CN30 and CN76 inserted
correctly?
Is R Sensor
unit normal?
Is the voltage between
MAIN PCB Connector CN30 - “6”(White) and
REG1-GND normal?
Is the input voltage of
IC01 MICOM #5 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 iced-solder, solder
bridging, disturbed solder.
NO
No trouble with PCB and temperature sensor.
Recheck the bad contact of the connection.
** Measuring point of resistance value according to
Sensor **
R : CN30 - “6”
↔
CN76-"1" measuring resistance value
** 0
Ω
: Short trouble /
Ω∞
: Open trouble
Sensor MICOM/Connector number
Voltage measured between 4.6V ~ 0.6V.
Measuring voltage IC01 MICOM #5,
CN30 - “6”(White) and REG1-GND
from PCB typical Ground part are similar.
→
Check the measure on the voltage of Resistance,
R311 due to the SMD MICOM
☞
Checking method of R Sensor resistance
CN30 - “6”(White)
↔
CN76-"1"(Gray) Compare the
temperature table after measurment.
DATA1.
Temperature table
Refer to circuit diagram in the manual
R
Connector CN30 - “6”(White) to
REG1-GND PCB typical Ground
☞
Checking method of R Sensor resistance
- Measure the voltage of Resistance R311(IC01 MICOM
#5) on PCB or CN30 - “6”(White)
↔
REG1-GND
- Compare the temperature table after measurement.
Measuring voltage of CN30 - “6”(White)
↔
REG1-GND
are as below.
PCB Typical Ground
REG1-GND
