6-2) When There Is A Trouble With Self Diagnosis - Samsung RS2530B Service Manual

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TROUBLE SHOOTING

6-2) When there is a trouble with Self Diagnosis

1) Ambient Sensor trouble => (applied to Ambient Sensor Temp type)
2) Refrigerator Temp Sensor trouble
Start
Is Ambient Sensor
normal? (PANEL PCB)
YES
Is MAIN PCB (CN31)
insertion normal?
YES
Is the connection wire between
MAIN PCB connector(CN32) and Temp Sensor
normal (PANEL PCB)?
YES
Is the voltage of Ambient Sensor of
MAIN PCB Connector (CN31) normal?(1-4)
YES
Is MICOM Pin#54 input
voltage normal?
YES
Check Main/Panel PCB
again, Change
Start
Is Refrigerator Temp Sensor
normal?
YES
Is the insertion of MAIN PCB
connector(CN30) normal?
YES
Is the connection between
MAIN PCB connector(CN30) and Temp
Sensor(purple) normal?
YES
Is MICOM Pin#51 input
voltage normal?
YES
Change MAIN PCB
NO
NO
Connector contact trouble
NO
Short between connector Sensors
NO
(0.5V> Measured value)
NO
(0.5V> Measured value>4.5V)
Check soldering fault,short,
NO
NO
Connector contact trouble
NO
Short between connector Sensors
NO
Check soldering fault,short,
50
Change Ambient Sensor
/re-insertion
Change Sensor
Lead Touch
Change Temp Sensor
/re-insertion
Lead Touch

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