Samsung RF265AB Service Manual

Also see for RF265AB: User manual User manual Quick start guide User manual User manual

58TROUBLESHOOTING6) If F DEF Sensor has troubleBad contact of connector/ insert correctlyAre MAIN PCBConnector CN30 toCN75 insert correctly?Is F DEF Sensorunit normal?Is the voltage betweenMAIN PCB Connector CN30#4(Orange)to CN1#3(Black) normal?Is the input voltage ofIC01 MICOM #53 normal?StartNOYESYESYESYESReplace temperature sensorNORecheck the wiring connectionNO(0.6V > Measurement < 4.6V)Check the iced-solder, solderbridging, disturbed solderNONo trouble with PCB and temperature sensor.Recheck the bad contact of the connection.** Measuring point of resistance value according toSensor **F-DEF : CN30#4 ® CN75#1 measuring resistancevalue** 0ʃ: Short trouble / ʃ: Open troubleSensor MICOM/Connector numberVoltage measured between 4.6V ~ 0.6V.Measuring voltage of IC01 MICOM #53,CN30#4(Orange) and CN1#3(Black) fromPCB typical Ground part are similar.ó Checking method of F DEF Sensor resistanceCN30#4(Orange) ® CN75#1(Gray)- Compare the temperature table after the measure.DATA1.Temperature tableERROR CodeRefer to circuit diagram in the manualF DEF Connector CN30#4(Orange) toCN1#3(Black) PCB typical Groundó Checking method of F DEF Sensor voltage- Measure the voltage of Sensor Check Point #1(IC01 MICOM#52) on PCB or CN30#4(Orange) ® CN1#3(Black)- Compare the temperature table after the measureMeasuring voltage of CN30#4(Orange) ® CN1#3(Black) are below typical PCB GroundCN1#3(Black)StartYESYESYES