5-6TEMP SENSING CIRCUIT | Samsung RS2*3* guide

OPERATION PRINCIPLES BY PARTS OF CIRCUIT

5-6) TEMP SENSING CIRCUIT

1)Sensor uses a thermistor which has a temp coefficient of negative resistance and controls resistance. When the heat goes up, the resistance gets down and vice versa. R302, 4, 6, 9 and C301~C303, C305 are parts for noise prevention but they are not related to temp sensing characteristics.

2)If Vf is the incoming voltage to MICOM in case of F-Sensor, Vf equals (Rth * Vcc)/ ((R301 + Rth). Where Rth is resistance of THERMISTOR corresponding to Temp. Please refer to the Appendix Temp-to-Sensor Resistance/Voltage conversion table(Temp-to-MICOM Terminal Voltage included) on A/S. (Next page)

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Samsung RS2*3* manual 5-6TEMP SENSING CIRCUIT, Operation Principles By Parts Of Circuit

Contents

SIDE-BY-SIDEREFRIGERATOR SAMSUNG Home Appliance ServiceModel RS2*3* RS2*2* RS2*1 Technical Service Guide Copyright IMPORTANT SAFETY NOTICESAMSUNG ELECTRONICS AMERICA, INC Contents 1. Safety Instructions on Service One 1 Year Parts and Labor on Refrigerator 2. Warranty informationSAMSUNG REFRIGERATOR LIMITED WARRANTY TO ORIGINAL PURCHASER 3-3Machine Compartment Disassembly 3. Mechanical Disassembly3-1Refrigerator Disassembly 3-2Freezer Disassembly Door Gasket Refrigerator Door Light SwitchControl Panel Door Handle Gallon Door Bin Mechanical DisassemblyRefrigerator Light Tempered Glass Shelf Mechanical Disassembly Damper in the RefrigeratorRefrigerator Thermistor Twin cool in the Refrigerator Freezer Shelf Freezer Door Light SwitchPlastic Wire Drawer in Freezer Door Bin in Freezer Auger Motor Case Ice Dispenser & Ice MakerMechanical Disassembly Mechanical Disassembly Freezer LightEvaporator Fan Motor Evaporator Cover in Freezer Mechanical Disassembly Evaporator in FreezerIce-MakerThermistor Freezer Thermistor Condenser Machine Compartment ＆ Electric BoxWater Solenoids Condenser Fan 4. CIRCUIT DIAGRAM 5. OPERATION PRINCIPLES BY PARTS OF CIRCUIT 5-1POWER5-2OSCILLATION CIRCUIT OPERATION PRINCIPLES BY PARTS OF CIRCUIT 5-3RESET CIRCUIT5-4EEPROM DETECTION CIRCUIT Door 5-5DOOR SWITCH DETECTON CIRCUITOPERATION PRINCIPLES BY PARTS OF CIRCUIT Category OPERATION PRINCIPLES BY PARTS OF CIRCUIT 5-6TEMP SENSING CIRCUIT Temp OPERATION PRINCIPLES BY PARTS OF CIRCUITTemp to Resistance of Sensor & MICOM PORT Voltage Sensor CHIP PX41C Standard 1 KEY SCAN 5-7DAMPER CIRCUIT5-8DISPLAY Circuit OPERATION PRINCIPLES BY PARTS OF CIRCUIT 2 DISPLAY OPERATION OPERATION PRINCIPLES BY PARTS OF CIRCUITGRID WAVE PATTERN OPERATION PRINCIPLES BY PARTS OF CIRCUIT 5-9Load Control Circuit OPERATION PRINCIPLES BY PARTS OF CIRCUIT 5-10ICE MAKER OPERATION CIRCUIT OPERATION PRINCIPLES BY PARTS OF CIRCUIT 5-11OPTION Circuit 6-1Freezer 6. Illustrated Parts Catalog 6-2Refrigerator Illustrated Parts Catalog 6-3Cabinet Illustrated Parts Catalog Illustrated Parts Catalog 6-4Disassembly of Freeze Door Illustrated Parts Catalog 6-5Disassembly of Refrigerator Door DEFECTS Appendix ⅠReference for circuit diagnosticsRef.1 Measure Load Terminals LOAD Ref.2 Check SENSOR Appendix ⅠReference for circuit diagnostics 272, Oseon-Dong, Kwangsan-Gu Kwangju-City,Korea ELECTRONICSTEL 82-62-950-6810,6811 FAX

Samsung RS23 manual 5-6TEMP SENSING CIRCUIT, Operation Principles By Parts Of Circuit

Models: RS23

5-6) TEMP SENSING CIRCUIT