Samsung RF28HMEDBSR Service Manual Page 82

French door refrigerator.
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TROUBLESHOOTING
7) If Ice Room Sensor has trouble
ERROR Code
DATA1.
Temperature table
** Measuring point of resistance value according to
Sensor **
Ambient : CN78 "10"↔ CN76-"1" Measure the voltage
of Resistance value
** 0Ω: Short trouble /Ω∞: Open trouble
Refer to the circuit diagram in this manual
Sensor MICOM/Connector number
Ice Room Connector CN78-"10"(Orange) and
J23 JUMMPER from PCB Typical Ground
Voltage measured between 4.6V ~ 0.6V.
Measuring voltage of IC01 MICOM #92,
CN78-"10"(Orange) and J23 JUMMPER from
PCB Typical Ground are similar.
→ Check the measure on the voltage of Resistance,
R316 due to the SMD MICOM
Checking Mehod of Ice Room Sensor voltage
CN78-"10"(Orange)
CN76-"1" (Gray)
- Compare with the temperature table after
measurement.
Start
Start
Is MAIN PCB
Connector CN78 and CN76 inserted
correctly?
YES
YES
Is
Ice room sensor unit
normal?
YES
YES
Is the voltage between
MAIN PCB Connector CN78-"10"(Orange) and
J23 JUMMPER normal?
YES
YES
Is the input voltage of
IC01 MICOM #92 normal?
YES
No trouble with PCB and temperature sensor.
Check the bad connections.
☞Checking Method of Ice Room Sensor Voltage
- Measure the voltage of Resistance, R316(IC01 MICOM #92) on PCB or
CN78-"10"(Orange)
J23 JUMMPER
- Compare with the temperature table after measurement.
Measured voltage of CN78-"10"(Orange)
J23 JUMMPER are as below
82
NO
Bad contact of connector/ insert correctly
NO
Replace temperature sensor
NO(0.6V > Measurement < 4.6V)
Check the wiring connection
NO
Check the iced-solder, solder
bridging, disturbed solder
PCB Typical Ground
J23 JUMMPER

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