Samsung RB195BSSB Service Manual - Page 57

R-Room Temp Sensor trouble, R-Room Defrost Sensor trouble

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Diagnostics 2) R-Room Temp Sensor trouble Start Is R-Room Temp Sensor normal? YES Is the insertion of MAIN PCB connector(CN30) normal? YES Is both trminal Voltage of MAIN PCB �~� (BLUE-BROWN) normal? Refer to Temp detechion circuit sensor of the circuit explanation. YES Is MICOM Pin#51 input voltage normal? (Identical Voltage �~� of CN30) YES Change MAIN PCB 3) R-Room Defrost Sensor trouble Start Is R-Room Defrost Sensor normal? YES Is MAIN PCB (CN30) insertion normal? YES Is both trminal Voltage of MAIN PCB Connector CN30 �~� (PURPLE-BROWN) normal? Refer to Temp detection circuit sensor of the circuit explanation. YES Is MICOM Pin#54 input voltage normal? (Identical Voltage �~� of CN30) YES Change MAIN PCB 57 ERROR INDICATION NO Change Temp Sensor NO Connector contact trouble / re-insertion NO (0.5V>Measured value) Reconfirm electric wire connect section NO Check soldering fault,short, Lead Touch ERROR INDICATION NO Change Defrost Sensor NO Connector contact trouble / re-insertion NO (0.5V>Measured value) Reconfirm electric wire connect section NO Check soldering fault,short, Lead Touch

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57
Diagnostics
2) R-Room Temp Sensor trouble
3) R-Room Defrost Sensor trouble
NO (0.5V>Measured value)
NO (0.5V>Measured value)
ERROR INDICATION
ERROR INDICATION
NO
NO
NO
Change Temp Sensor
Is R-Room
Temp Sensor
normal?
Is the
insertion of MAIN
PCB connector(CN30)
normal?
Is both trminal
Voltage
of
MAIN PCB
´~µ
(BLUE-BROWN)
normal?
Is MICOM
Pin#51 input voltage
normal? (Identical Voltage
´~µ
of CN30)
Start
YES
Connector contact trouble
/ re-insertion
Reconfirm electric wire
connect section
YES
Check soldering fault,short,
Lead Touch
YES
Change MAIN PCB
YES
Refer to Temp detechion circuit
sensor of the circuit explanation.
Refer to Temp detection circuit
sensor of the circuit explanation.
NO
NO
NO
Change Defrost Sensor
Is R-Room Defrost
Sensor normal?
Is MAIN PCB (CN30)
insertion normal?
Is both trminal
Voltage of MAIN PCB Connector CN30
¶~µ
(PURPLE-BROWN) normal?
Is MICOM
Pin#54 input voltage
normal? (Identical Voltage
¶~µ
of CN30)
Start
YES
Connector contact trouble
/ re-insertion
Reconfirm electric wire
connect section
YES
Check soldering fault,short,
Lead Touch
YES
Change MAIN PCB
YES