Samsung RF28HMEDBSR Service Manual Page 80

French door refrigerator.
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TROUBLESHOOTING
5) If F Sensor has trouble
ERROR Code
DATA1.
Temperature table
** Measuring point of resistance value according to
Sensor **
F : CN30-"1" ↔ "4" measuring resistance value
** 0Ω: Short trouble / Ω∞: Open trouble
Refer to circuit diagram in the manual
Sensor MICOM/Connector number
Connector CN30-"4"(Yellow) to
F
J23 JUMMPER PCB typical Ground
Voltage measured between 4.6V ~ 0.6V.
Measuring voltage of IC01 MICOM #82,
CN30-"4"(Yellow) and J23 JUMMPER from
PCB typical Ground part are similar.
→ Check the measure on the voltage of Resistance,
R309 due to the SMD MICOM
☞ Checking method of F Sensor resistance
CN30-"1"(Yellow)
"4" (Yellow)
- Compare the temperature table after measurement.
1
Cover Sensor
[Disassemble the Cover Sensor]
8
[Assemble the Cover Sensor]
Connector CN30 inserted correctly?
F Sensor unit normal?
Is the voltage between
MAIN PCB Connector CN30-"4"(Yellow) and
J23 JUMMPER normal?
Is the input voltage of
IC01 MICOM #82 normal?
No trouble with PCB and temperature sensor
Recheck the bad contact of the connection
Checking method of F Sensor voltage
- Measure the voltage of Resistanec, R309(IC01 MICOM #82) on PCB or
CN30-"4"(Yellow)
J23 JUMMPER
- Compare the temperature table after measurement.
Measuring voltage of CN30-"4"(Yellow)
2
Cut as close as
possible to the
sensor
[Cut the Sensor wire]
7
[Fix with insula on tape]
80
Start
Start
NO
Are MAIN PCB
YES
YES
NO
IS
YES
YES
NO(0.6V > Measurement < 4.6V)
YES
YES
NO
YES
J23 JUMMPER are as below.
3
Strip
: 10mm
[Strip the end of Main wire]
6
[Connect Sensor and Main wire]
by twis ng conductors
Bad contact of connector/ insert correctly
Replace temperature sensor
Recheck the wiring connection
Check the iced-solder, solder
bridging, disturbed solder
PCB Typical Ground
J23 JUMMPER
4
100mm
Strip : 10mm
[Cut the Service Sensor
wire and strip]
5
[Assemble Cover Sensor
& Sensor]

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