Samsung RF28HDEDBSR Service Manual page 74

TROUBLESHOOTING
2) ICE Maker(FZ) Sensor has troubled
ERROR Code
DATA1.
Temperature table
** Measuring point of resistance value according to Sensor **
ICE MAKER(FZ) : CN90 9 ↔ 8 measuring
resistance value
** 0Ω: Short trouble / Ω∞: Open trouble
Refer to circuit diagram in the manual
Sensor MICOM/Connector number
Connector CN90-"9"(Red) and J23
ICE
JUMMPER PCB common Ground
Maker(F)
Voltage measured between 4.6V ~ 0.6V.
Measuring voltage of IC01 MICOM #75,
CN90-"9"(Red) and J23 JUMMPER PCB typical Ground
part are similar.
→ Check the measure on the Resistance R904 due to the
SMD MICOM.
☞ Checking Method of ICE MAKER(R) Senser
resistance CN90 "9"(Red)
↔
- Compare the temperature table after the measure.
☞ Checking method of ICE Maker Seneor
- Measure the voltage of Resistance R904(IC01 MICOM #75) or
8"(White)
CN90-"9"(Red) ↔ J23 JUMMPER.
- Compare the temperature table after the measure. Measuring
voltage of CN90-"9"(Red) ↔ J23 JUMMPER.
Start
Is MAIN PCB
Connector CN90 inserted
correctly?
YES
Is ICE Maker(FZ)
sensor unit normal?
YES
Is the voltage between
MAIN PCB Connector CN90-"9"(Red)
and J23 JUMMPER normal?
YES
Is input voltage of
IC01 MICOM #75 normal?
YES
No trouble with PCB and temperature sensor.
Recheck the bad contact of the connection.
74
- This refrigerator has Dual Ice Maker,
so controlled two Ice Makers.
NO
Bad contact of connector/ insert correctly
NO
Replace the ICE Maker
NO(0.6V > Measurement < 4.6V)
Check the contact of PCB &
Wire Terminal correctly.
NO
Check the iced-solder, solder
bridging, disturbed solder.
Replace the PCB
typical PCB Ground
J23 JUMMPER