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Samsung SR-69NMC, SR-65KTC, SR-65NMC, SR-61KTC, SR-61NMC specifications Circuit Operating Theory

Models: SR-61NMC SR-61KTC SR-69NMC SR-65NMC SR-65KTC

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8. CIRCUIT OPERATING THEORY

8. CIRCUIT OPERATING THEORY

8-1. ELECTRONIC MODE

1. Power suooly part

1)Power is on and makes about DC 300V through BD1.

2)TOP S/W is switching the best condition automatically.

Electric current run between D and S of TOP S/W and occur electric current in TRANS and when power of D-s is off storing electric current of TRANS pass to secondary voltage.

3)Voltage main 12V. This is applied to display, relay and 5V power of sourcr and Main PCB

2. OSCILLATOR

TERMINAL

FREQUENCY

Xin(#30)

4MHz

Xout(#31)

4MHz

1)Tish needs function for CLOCK occurrence and time calculation.

In case of SPEC of RESONATOR change abnormal mode run because of changing Timming system of MICOM.

3.RESET PART

TERMINAL

VOLTAGE

Vcc

DC 5V

RESET

DC 5V

－21－

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Samsung SR-69NMC, SR-65KTC, SR-65NMC, SR-61KTC, SR-61NMC specifications Circuit Operating Theory

Contents

SR-69NMC CONTENTSModel SR-61KTC/SR-61NMC SR-65KTC/SR-65NMC REFRIGERATOR 1. Product specifications Warning/Caution Description of symbols2.Safety precautions and warnings Prohibition Prohibition ProhibitionProhibition Reted 3. ELECTRIC PARTS STANDARD REFRIGERATION PARTSTEMPERATURE DEFROST ELECTRIC PARTS 4-1.Electronic modeSR-61KTC,65KTCT 4. Electric diagram4-2SEMI BASIC SR-61NMC,65NMC, 69NMC 5. Cool Air Circulation SR-61NMC 6. FUNCTIONS AND DIRECTIONSMODEL SR-69NMC CHILLED ROOM SHELF 6-2.THE NAME OF EACH PARTS AND DISASSEMBLE METHODDOOR GUARD DID CASE 6-3.CYCLE OF FREEZING －11－ 7. TEMPERATURE CONTROL AND THE OTHERS 3.Alarming 3Forced operating and defrosting“ Beep”sound 5.SELF DIAGNOSIS 6.LOAD STATUS DISPLAY 7.operating of fan motor ※Personal Informatin －18－ 7-2,SEMI ELECTRONIC MODE D. TEST FUNCTION Page 8. CIRCUIT OPERATING THEORY 4.DOOR S/W SENSING PART 5. TEMP·SENSING PART LOAD 7. COMP AND DEFROSTING HEATER OPERATINGSTATES REMARK 8. BLDC MOTOR Operation Circuit 1-2FAN MOTOR IN THE FREEZER R-FAN STANDARD 9. POTION PART 1PRINCIPIE OF MAVEMENTNAME REMARK 8-2.SEMI ELECTROMAGNETIC 9-1.POWER PART 9-3.RESET CIRCUIT PART 9-5.TEMP. CONTROL CIRCUIT.ROTARY S/W S/Wcircuit ①~⑩ B. REFRIGERATOR TEMP ※ CAUTIONIt is appeared the S/W cross spot of ROTARY －31－ 6. ELECRICAL LOAD SIGNAL LAMP CONTROL PART －32－ B. MOVEMENT PRINCIPAL ※PERSANAL INFORMA －34－ MODEL NAME Remark 1.No input Power 9.Diagnosis of disorder and method of repair1.Check the power of consent and power code 1.ELECTRICAL SR-61KTC,65KTC ②Refrigerator temp, sensor failure 2.Self diagnosis failureOuter temper ature sensor failure －37－ Freezer tem sensor failare －38－ Freezer’s defrosting sensor failure －39－ 3. In case of contiunous alarming REFRENCES ②In case of“Beep-Beep”alarming 4. In case of FAN do not run REFRENCES ①In case of F-FANdoesn’t run Run the DC voltage －43－－44－ Forced operation Check CON70 connection check －45－the MOTOR Check the MOTOR Chang the MOTOR 2.SENMI electronic mode SR-61NMC,65NMC 9. Diagnosis of disorder and method of repair1.When not operating Power －46－ B. Refrigerator’s temp, senser failure 2. Self diagnosis failureA. Freezer’s temp·sensor failure －47－ D. Refrigerator’s defrosting sensor failure C. Freezer’s defrosting sensor failure－48－ 3.In case of FAN in the refrigerator doern’t run B. In case of R-FANdo not run ①Check －50－－51－ ②Check ROTARY S/WIs proper the retrigerators temp·regulator? 4.Badress management of freeze cycle Appearance 10-1.Freezer comoartmentSR-61KTC,65KTC －53－ 10-2.Freezer compartment SR61NMC,65NMC,69NMC 10-3.Refrigerator Compartment SR-61KTC,65KTC －55－ THERMO-FUSE,ASSY SENSOR-ASSY EVAP-REF CHASSIC-COMPASSY HING-MID-ASSY CHASSIC-COMPASSY CASE-DLSPLAY,ASSY 10-7.Related Components of DOORHANDLE-FRE,ASSY HANDLE-REF,ASSY 1.Disassemble lathch the top cover of refrigerator SR-61KTC SR-61/65/69NMC 11-2.Replacement of freezer in door lamp11-3.Replacement of refrigerator in door lamp 1Remove the back cover lamp and then in door lamp 1 Push the cold storage and remove it 11-4.Disassemble of refrigerator cooling part2Remove foods and shelves inside the Refrigerator la tch Remove 2 screws Temp·fuse Temp·sensor Groove for preventing small ice when defrosting2 holders securing evaporator CABLE TIE FOAM-LEX Noise protector 1 Pull out the shelf 1 Disassembie inner lower GROMMET of DID door Assembly specifcation of Freezer cooler part11-6.Disjonting of DID door 2 Disassemble DID door with up the iower HINGE Pace condenser Pace condenser entrance 11-7.Unit assemblyMotor fan Hot pipe entrance S-PIPE Condenser entrance Rubber for Noise protector 3.Assembly specification of electric box TEST S/W 11-8.Electric box assembly1.Disconnect the power cord Condenser 3.Assembly specification of electric box TEST S/W 11-9.Electric box assembly1.Disconnect the power cord FUSE Condenser TRANS-POWER PACKING EXAMPLE OF FRONT SIDE AND BACK SIDE 12. PACKINGPACKING OF DOOR AND CABINET EXAMPLE OF PERFECT PACKING Circuit way 13. Main Components Specifacations FEATURESBLOCK DIAGRAM ORDERING INFORMATION ELECTRICAL CHARACTERISTICS KA7805/I ABSOLUTE MAXIMUM RATINGS TA = ELECTRICAL CHARACTERISTICS KA7812/I Checking low battery 3.3V VOLTAGE DETECTORFEATURES BLOCK DIAGRAM ABSOLUTE MAXIMUM RATING TA = ELECTRICAL CHARACTERISTICS TA = 8-CHANNELSOURCE DIRVERS FEATURES2981THRU ABSOLUTE MAXIMUM RATINGS FOR SAFETY OF SERVICE CAUTION 272, Oseon-Dong, Kwangsan-Gu Kwangju-City,Korea ELECTRONICSTEL 82-62-950-6810,6811 FAX