Samsung RF265AB Service Manual page 58

TROUBLESHOOTING
7) If Pantry Sensor has trouble
ERROR Code
DATA1.
Temperature table
** Measuring point of resistance value according to
Sensor **
Pantry : CN30#8 #9 measuring resistance value
** 0 : Short trouble / : Open trouble
Refer to circuit diagram in the manual
Sensor MICOM/Connector number
Pantry Connector CN30#8(White-black) to
CN1#3(Black) PCB typical Ground
Voltage measured between 4.6V ~ 0.6V.
Measuring voltage of IC01 MICOM #58,
CN30#8(White-black) and CN1#3(Black)
from PCB typical Ground part are similar.
Checking method of Pantry Sensor resistance
CN30#8(White-black) #9(Gray)
- Compare the temperature table after the measure
Start Start
Is MAIN PCB
Connector CN30 insert
correctly?
YES YES
Is Pantry Sensor
normal?
YES YES
Is the voltage between
MAIN PCB Connector CN30#8(Whiteblack)
to CN1#3(Black) normal?
YES YES
Is the input voltage of IC01
MICOM Pin# 58 normal?
YES
No trouble with PCB and temperature sensor.
Recheck the bad contact of the connection.
Checking method of Pantry Sensor voltage
- Measuring voltage of Sensor Check Point #5(IC01 MICOM #58) on
PCB or CN30#8(White-black) CN1#3(Black)
- Compare the temperature table after the measure
Measuring voltage of CN30#8(white-black) CN1#3(Black) are below
59
NO
Bad contact of connector/ insert correctly
NO
Replace temperature sensor
NO(0.6V > Measurement < 4.6V)
Recheck the wiring connection
NO
Check the iced-solder, solder
bridging, disturbed solder
typical PCB Ground
CN1#3(Black)