Samsung RR39M7 Series Service Manual page 77

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TROUBLESHOOTING
- 1 BOARD
3) When the R-DEF-Sensor is defective
ERROR CODE
Fridge model
Freezer, Kimchi model
DATA1. Temp Table
** Sensor Resistance Reading
Location **
R-DEF : Between CN30 #9 and #11
** 0Ω : Short / ∞Ω : Open
Refer to Circuit Diagram
Sensor MICOM/Connector #
Between Connector
R-DEF
CN30 - "9"(WHT) and
CN30 - "11"(WHT)
Voltage : Between 4.6V ~ 0.6V
Voltage at MIC01 MICOM # 6 is the
same as the value between
CN30-"9"(WHT) and CN30-"11"(WHT)
Start
MAIN PCB Connector CN30 is
inserted properly?
Yes
R-DEF Sensor is normal?
Yes
Voltage between MAIN PCB
Connector CN30-"9"(WHT) and
"11"(WHT) is normal?
Yes
Input Voltage at MIC01
MICOM Pin #6 is normal?
Yes
PCB and Temp Sensor are normal.
Check the connector contact.
77
No
Connector contact defect / Reconnect
No
Replace the Temp Sensor.
No
NO (0.6V > Value or Value > 4.6V)
Check the wire connection.
No
Check Soldering Defect & Short.

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