Samsung RF265AARS RF266AARS RF26NBRS1RF265AABP RF266AABP RF26NBBP1RF265AAWP RF266AAWP RF26NBSH1RF265AASH RF266AASH, Service Manual

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53
TROUBLESHOOTING
2) If R Sensor has trouble
Bad contact of connector/ insert correctly
Is MAIN PCB
Connector CN30 to CN75 inserted
correctly?
Is R Sensor
unit normal?
Is the voltage between
MAIN PCB Connector CN30#6(White) to
CN1#3(Black) normal?
Is the input voltage to
IC01 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 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 CN75#1 measuring resistance value
** 0 : Short trouble / : Open trouble
Sensor MICOM/Connector number
Voltage measured between 4.6V ~ 0.6V.
Measuring voltage IC01 MICOM #54,
CN30#6(White) and CN1#3(Black)
from PCB typical Ground part are similar.
Checking method of R Sensor resistance
CN30#6(White)
CN75#1(Gray) Compare the
temperature table after the measure.
DATA1.
Temperature table
ERROR Code
Refer to circuit diagram in the manual
R
Connector CN30#6(White) to
CN1#3(Black) PCB typical Ground
Checking method of R Sensor resistance
- Measure the voltage of Sensor Check Point #3(IC01 MICOM #54)
on PCB or CN30#6(White) CN1#3(Black)
- Compare the temperature table after the measure.
Measuring voltage of CN30#6(White)°ÍCN1#3(Black) are below.
typical PCB Ground
CN#3(Black)