Samsung RF265AB Service Manual page 55

TROUBLESHOOTING
4) If Ambient Sensor has trouble
ERROR Code
DATA1.
Temperature table
** Measuring point of resistance value according to
Sensor **
Ambient : CN32#1 #4 measuring resistance value
** Placed in the right top table of upper hinge.
** 0 : Short trouble / : Open trouble
Refer to circuit diagram in the manual
Sensor MICOM/Connector number
Ambient Connector CN32#1(White) to
CN1#3(Black) PCB typical Ground
Voltage measured between 4.6V ~ 0.6V.
Measuring voltage of IC01 MICOM #59,
CN32#1(White) and CN1#3(Black) from
PCB typical Ground part are similar.
Checking method of Ambient Sensor resistance
CN32#1(White) #4(White)
- Compare the temperature table after the
measure
Start Start
Is MAIN PCB
Connector CN32 inserted
correctly?
YES YES
Is Ambient Sensor
unit normal?
YES YES
Is the voltage between
MAIN PCB Connector CN32#1(White)
to CN1#3(Black) normal?
YES YES
Is the input voltage of
IC01 MICOM #59 normal?
YES
No trouble with PCB and temperature sensor
Recheck the bad contact of the connection
Checking method of Ambient Sensor voltage
- Measure the voltage of Sensor Check Point #7(IC01 MICOM #59)
on PCB or CN32#1(White) CN1#3(Black)
- Compare the temperature table after the measure
Measuring voltage of CN32#1(White) CN1#3(Black) are below
56
NO
Bad contact of connector/ insert correctly
NO
Replace the 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)