Samsung RF267AARS Service Manual page 63

TROUBLESHOOTING
2) If R Sensor has trouble
ERROR Code
2¢ (-19¡ ) is recommended
DATA1.
Temperature table
** Measuring point of resistance value according to
Sensor **
R : CN30#6 CN75#1 measuring resistance value
** 0 : Short trouble / : Open trouble
Refer to circuit diagram in the manual
Sensor MICOM/Connector number
Connector CN30#6(White) to
R
CN1#3(Black) PCB typical Ground
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.
38¢ (3¡ ) is recommended
Connector CN30 to CN75 inserted
MAIN PCB Connector CN30#6(White) to
IC01 MICOM #54 normal?
No trouble with PCB and temperature sensor.
Recheck the bad contact of the connection.
Checking method of R Sensor resistance
- Measure the voltage of Sensor Check Point #3(IC01 MICOM #54)
on PCB or CN30#6(White)
- Compare the temperature table after the measure.
Measuring voltage of CN30#6(White)°ÍCN1#3(Black) are below.
61
Start
Is MAIN PCB NO
correctly?
YES
NO
Is R Sensor
unit normal?
YES
Is the voltage between NO(0.6V > Measurement < 4.6V)
CN1#3(Black) normal?
YES
NO
Is the input voltage to
YES
CN1#3(Black)
Bad contact of connector/ insert correctly
Replace the temperature sensor
Recheck the wire connection part
Check the iced-solder, solder bridging,
disturbed solder.
typical PCB Ground
CN#3(Black)