Samsung SR-61KTC Service Manual
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Samsung SR-61KTC Service Manual

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REFRIGERATOR
Model: SR-61KTC/SR-61NMC
SR-65KTC/SR-65NMC
SR-69NMC
CONTENTS
1. Product Specifications
2. Safety Warning & Caution
3. Electrical part specifications & standard
5. Air Circulation route
6. Function & Vsing method
7. Temperature control & other Functions
9. Failure diagnosis & repairment
10. Dissembie & Assemble drowing and part LIST 53
11. Disassemble & Assemble Method
13. Main componets specification
1
2
4
6
7
8
11
21
36
88
84
86

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Summary of Contents for Samsung SR-61KTC

  • Page 1 Model: SR-61KTC/SR-61NMC SR-65KTC/SR-65NMC SR-69NMC REFRIGERATOR CONTENTS 1. Product Specifications 2. Safety Warning & Caution 3. Electrical part specifications & standard 4. Electric diagram 5. Air Circulation route 6. Function & Vsing method 7. Temperature control & other Functions 8. Circuit Operating theory 9.
  • Page 3 2.Safety precautions and warnings xRead all instructions before using this product and keep to the instructions in order to prevent danger or property damage. Warning/Caution Description of symbols IN DICATES PROHIBITION Indicates that a danger of death DO NOT DISASSEMBLE Warning or serious injury exists.
  • Page 4 Caution Do not store pharmaceutical Do not put bottles or kinds of Do not store narrow and lengthy products, scientific materials, glass in the freezer. bottles or foods in a small multi- etc., in the refrigerator. purpose room. ● Freezing of the contents may inflict a wound.
  • Page 5 3. ELECTRIC PARTS STANDARD STANDARD ITEM SR-61/65/69NMC / SR-61/65KTC 220V/50~60Hz 110~115V/60Hz 127V/60Hz 230~240V/50Hz SK190H-L2U DK190Q-L2U DK172P-L2U DK172C-L2U MODEL COMPRESSOR STARTING TYPE RSCR OIL CHARGE Freol α -15(ESTER) FREEZER SPLIT FIN TYPE COOLER SPLIT FIN TYPE SPLIT FIN TYPE & TUBE TYPE REFRIIGERATOR FORCED AND NATUAL CONUECTION TYPE CONDENSER...
  • Page 6 ITEM SR-61/65/69NMC / SR-61/65KTC 220V/50~60Hz 110~115V/60Hz 127V/60Hz 230~240V/50Hz F-SENSOR 502 AT R-SENSOR 〃 SENSOR 〃 F-DEF SENSOR 〃 R-DEF SENSOR 13W / 240V 13W / 110V 13W / 127V 13W / 220V DRAIN HEATER 235W / 240V 235W / 127V 235W / 220V 235W / 220V F DEF HEATER...
  • Page 7 4. Electric diagram 4-1. Electronic mode(SR-61KTC,65KTCT) FILTER EARTHED P.T.C RELAY CIRCUIT COMP RELAY SIBLU SIBLU EARTHED CIRCUIT SIBLU OPERATING COMPERESSOR CONDENSER F-TEM FUSE F-DEFROST-HEATER SIBLU R-TEM FUSE R-DEFROST-HEATER SIBLU SIBLU W / B REFRIGERATOR W / B FREEZER LAMP SIBLU...
  • Page 8 5. Cool Air Circulation －8－...
  • Page 9 6. FUNCTIONS AND DIRECTIONS 6-1. THE OUTER SIZE MODEL SR-61KTC 1066.5 1755.5 761.5 617.5 1479 SR-61NMC 1066.5 1760.5 761.5 617.5 1479 1096.5 1810.5 761.5 617.5 1479 SR-65KTC/NMC 1140.5 1854.5 761.5 617.5 1479 SR-69NMC －9－...
  • Page 10 6-2. THE NAME OF EACH PARTS AND DISASSEMBLE METHOD DOOR GUARD FREEZER SHELF Push to direction ② ● Up the front of shelf to direction ① then pull and ● apart to direction②. CHILLED ROOM SHELF DID CASE Pull and apart ●...
  • Page 11 6-3. CYCLE OF FREEZING COMPRESSOR → SUB CONDENSER → CLUSTER PIPE → HOT PIPE → DRYER → CAPILLARY TUBE → EVAPORATOR OF REFRIGERATOR → EVAPORATOR OF FREEZER → ACCUMULATOR → SUCTION PIPE → COMPRESSOR SUCTION PIPE CLUSTER PIPE ACCUMULATOR EVAPORATOR OF REFRIGERATOR EVAPORATOR OF FREEZER...
  • Page 12 7. TEMPERATURE CONTROL AND THE OTHERS 7-1. ELECTRONIC MODE 1. DISPLAY DESIGN 2. Temperature control function 1) Freezer temperatur control 1-1) It consists of five steps as follows and selected by one button. MID → MID,HIGH → NIGH → LOW → LOW,MID 1-2) setting up turn on a light in order by system of freezer cholce button.
  • Page 13 3-1) Power freeze function A. Input power freeze/regular condetion key. When power freeze startes, LED signal change at once. (Comp and F-fan runs continuously for two and a half hours when quick freeze sekected.) B. During quick freezing the refrigerator controlled by setted notch. 3-2) Regular condition function A.
  • Page 14 3) Forced operating and defrosting ( “Beep” sound) 3-1) If forced function selected the “Beep” sounds. 3-2) Alarming sounds until the forced operating canceled by automatically(24Hr) or manualy. 3-3) Alarming sounds until the forced defrosting canceled by automatiically(24Hr) or manualy. 4) Defrosting 1-1) From the first power on, defrosting started after 4 hours of total Comp on time.
  • Page 15 5. SELF DIAGNOSIS SELF DIAGNOSIS AT FIRST POWER ON 1-1) As the power applied to the refrigerator first time, all dispays show operating and run the self diagnosis. 1-2) If no problem foundes, display returns to normal mode 1-3) If probiem foundes, on and off the related display lamp and start alarming. 1-4) Lamp displayed until the problem solved or seif diagnosis cancelled.
  • Page 16 6. LOAD STATUS DISPLAY 1) Press power freezing / regular conditing and power refrigerating / power saving key for five seconds then press temperature control key in the refrigerator after temperature display lamps on and off three times 2) This mode shows which lamps is being sourced signal from MICOM currently. This doesn’ t mean the load is operate due to the open wire or relay missing though the display shows the compressor operating.
  • Page 17 7. operating of fan motor 1) FAN MOTORoperates BLDC MOTOR by dc power. 2) After first starting power, it operates “HIGH”rpm to off dot of fan and then operates “LOW” rpm 3) if binding motor or not sensing regular freguency of motor to pcb, motor will stop operating. (After stopping, reoerating start in 10 seconds.) ※...
  • Page 18 Personal Informatin ※ Micomport Voltage and Resisting force of sensor by Temperature. RESI S TANCE VOLTAGE (V) TEMPERATURE (℃) RESISTANCE VOLTAGE(V) RESI S TANCE VOLTAGE(V) RESI S TANCE VOLTAGE(V) TEMPERATURE(℃) TEMPERATURE (℃) TEMPERATURE(℃) 98870 4.541 30920 3.778 11250 2.647 4650 1.587 93700 4.518...
  • Page 19 7-2, SEMI ELECTRONIC MODE A. Temperature control part design Freezer temperature control refrigerator temperature control TEMP, FRE TEMP, REF B. Temperature control function 1) Tempera ture choice of freezer ·You can choose to ⑧ From ① ·Follows are control temperature by KNOB position. KNOB position ①...
  • Page 20 D. TEST FUNCTION ▶ TEST function is function for test,SVC and fair test of PCB and product. ▶ TEST S/W choose and confirm function of product and then POWER ON to run self diagnosis. 1) FORCED OPERATING FUNCTION ● Pressed once TEST S/W on MAIN PCB. If so COMP and F-FAN run at once. Thus be careful because occur COMP over load.
  • Page 21 E. self diagnosis function 1) Power on refrigerator and it run seif diagnosis function about 2 seconds at the inner part. 2) If no preblem it turns normal mode. 3) If find prebiem display lamp of PCB show errw position like lower list and everything don’ t operate until repair error position.
  • Page 22 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.
  • Page 23 1) RESET part is intialize RAM of MICOM and others when power is on or power is inferruoted for some time It will make whole program runs from the first status. When power is supplied, reset voltage is “LOW” status for a few seconds and turn into “HIGH”...
  • Page 24 5. TEMP·SENSING PART 1) Thermistor is used for sensing which has negative resistance coffiecient to the temperature. R 302, 4, 6, 8, 12, C301~C306 are pares for preventing noise. 2) MICOM input voltage, Vf of sensor is Vf=(R+hx x Vcc)/(R301+Rth) (Rth : sensor resistance) 6.
  • Page 25 7. COMP AND DEFROSTING HEATER OPERATING COMP LED F-DEFROSTING HEATER R-DEFROSTING HEATER As it is seen above block diagram. 220V line is connected to the commons of comp relay, Ry 71 and defrosting heater relay, Ry 73, Ry 75. When those relays are off state comp and defrosting heater are also off. As comp relay moves to on and AC 220V applied to comp load it starts operating On the other hand defrost heater runs if defrost heater relay moves to on.
  • Page 26 8. BLDC MOTOR Operation Circuit 1) Operate description of BLDC MOTOR First, if FAN became before operate condition of FANMOTOR, condition of in the temp. are high temp. more than FAN of recently institutionn NOTCH is operated condition. ex)CONNECTOR CN 70’ S third voltage : Input VL, Vcc 5V(Used Diode regard DROP) Perated High RPM V L = Gain * Ei Gain = (R705+R704)/R704...
  • Page 27 1-2) FAN MOTOR IN THE FREEZER (R-FAN) A. If refrigerator’s power is confimated, check the temp. of R-FAN and temp. more than R-FAN ON is operated “HIGH RPM” to sign of MICOM #11PORT. After arrived FANOFF, if FAN is OFF and separatre function of ON/OFF isn’t confimated always MICOM#10PORT is confimate sign and operated “LOW RPM”.
  • Page 28 9. POTION PART 1) PRINCIPIE OF MAVEMENT Like the GRID waves appear in initial POWER ON is reaeved through SWITCHING DIODE and OPION is judged for MATRIX method. NAME STANDARD REMARK R-CARBON 10Kohm-J (1/4) R-CARBON 1Kohm-J (1/4) ※ when OPTION Changed power turns off, after change and power turn on. －27－...
  • Page 29 8-2. SEMI ELECTROMAGNETIC 9-1. POWER PART. V12(DC 12V) FUSE 250V, 0.5A Vcc(DC 5V) KA7812 KA7805 VAR1 C104 C103 C101 C105 C102 470uF/25V 470uF/25V 1000uF/35V CON 70 IN4007*4 YW396-07AV D101~104 CON 71 YW396-05AV POWER CIRCUIT OF USING - ● Vcc(DC 5V) POWER AROUND MICOM OR SENSOR SENSING PART - ▶...
  • Page 30 9-3. RESET CIRCUIT PART RESET circuit part is performed the eariy state all program furction when input power and confimate power to MICOM for suddeniy electricity failure, it is initialed to PAM of inside MICOM. when confimate power RESET’ S vltg is “LOW”state during sevweal tens uses and it is “HIGH”state as nomal operation state.
  • Page 31 9-5. TEMP. CONTROL CIRCUIT.(ROTARY S/W) A. FREEZER TEMP. ※CAUTION It is appeared the S/W cross spot of ROTARY S/W circuit ①∼⑩ Temp. control is changed KNOB of contructed ROTARY S/W in the freezer and it is possible the temp. control 1 step to 8 step.
  • Page 32 B. REFRIGERATOR TEMP ※ CAUTION It is appeared the S/W cross spot of ROTARY S/Wcircuit ①~⑩. Temp. control is changed KNOB of contructed ROTARY S/W in the refrigerator and it is possible the temp. control 1 step to 8 step. Temp.
  • Page 33 6. ELECRICAL LOAD SIGNAL LAMP CONTROL PART BARISTER SSR71 SSR72 RY71 RY72 RY73 Like the above circuit, pin 1 of CN71 suply the power. And electrical load suply the power when electricaload operated. operated refrigerator, freezer to fact comp operation And if it is needness of defrosting operation, performed comp’...
  • Page 34 7. POTION PART A. circuit way B. MOVEMENT PRINCIPAL like the grid waves appear in initial power on is recieved throngh switching diode and option is judged for matrix method. when option changed power furnd off, after change and power turns on. C.
  • Page 35 ※ PERSANAL INFORMA sensor resistance power and MICOMPORT voltage by temperature. TEMPERATURE (℃) VOLTAGE (V) RESISTANCE (Ω) VOLTAGE (V) TEMPERATURE (℃) TEMPERATURE (℃) VOLTAGE (V) RESISTANCE (Ω) VOLTAGE (V) RESISTANCE (Ω) TEMPERATURE RESISTANCE (Ω) 3.778 4.541 11250 2.647 1.587 (℃) 30920 98870 4650...
  • Page 36 ABOUT CIRCUIT LINK LIST CODE-NO MODEL NAME SPEC Quantity Remark DA32-10109H R-SENSOR ASSY 502AT DA32-10109A F-SENSOR ASSY 502AT GENERALLY DA32-10105G EVA SENSOR ASSY 502AT SEMI DA41-00048A MAIN PCB ASSY AC220V/50,60Hz DA41-00012A SUB PCB ASSY DA26-30116A DC-TRANS AC220V/50,60Hz Applicating DA41-00053A MAIN PCB ASSY AC220V/50,60Hz SEMI DID HEATE －35－...
  • Page 37 9. Diagnosis of disorder and method of repair 1. ELECTRICAL (SR-61KTC,65KTC) Preliminary examamination 1. Check the power of consent and power code 2. Check it based on the :References” on the next pages. 1. No input Power START Ohiy aline AC 220V FUSE?
  • Page 38 2. Self diagnosis failure Outer temper ature sensor failure START Is main PCB connection O.K? Connection failure, SHORT Is outertemp sensor O.K? Change temp sensor, change PCB MAIN Is input vltg of MICOM PIN#58 O.K? Check Main-PCB PCB and temp sensor O.K. Reconfirm outertemp sensor inferior ②...
  • Page 39 Refrigerator’ s defrosting sensor failure START Is MAIN-PCB connection (con30) O.K? Connection failure Is defrosting sensor O.K. Change sensor Is connection of defrosting sensor O.K Connection failure Is input vltg of CON30PIN60 O.K. Wire open Change MAIN PCB ASS’Y Freezer tem sensor failare START Is MAIN-PCB connection (con30) O.K?
  • Page 40 Freezer’ s defrosting sensor failure START In MAIN-PCB connection (con30) O.K? Connection failure Is defrosting sensor O.K. Change sensor Is conection of defrosting sensor O.K connection failure Is input vltg of CON30 Wire open PIN4 O,K Change MAIN PCB ASS’ Y －39－...
  • Page 41 3. In case of contiunous alarming REFRENCES F/R door open alarms for ten seconds after 2 minutes later. IF door opens continuously, door open alarms for ten seconds with one minute cycle. cten times of “Ding-Ding” If there is moisture in door S/W, it is shorted and alarms due to the MICOM’ S misjudgement, In this case the inside lamps of freezer and refrigerator turns off so the lamp do not turns on thaugh you open the door.
  • Page 42 ② In case of “Beep-Beep” alarming START Is forced operating/fro sting selected? Cancel forced oper/defro Is it the same when power on again? MAIN-PCB O.K PCB MAIN TEST S/W (SW1);lead touch, check shorted other material REFRENCES There is on “beep-beep” alarming except the forced operating/frosting or sensing troble during self diagnosis If self diagnosis sensed troble, it is displayed on the PANEL PCB, so easy to check, If not, the forced operating/frosting is selected the NOTCH status are “High”...
  • Page 43 ④ In case of the panel PCB Key selection is impossible. START Is the connection of cover O.K? Re-connection connection failure Is MAIN-PCB commection (CON50)O.K? Re- connection Is PANEL-PCB connection O.K? Re-connection connectionfailure Are there any keys already predded? Re-assemble PANEL COVER Change PANEL-PCB 4.
  • Page 44 ① In case of F-FAN doesn’ t run (Run the DC voltage) START Is it forced operation? Forced operation Does it run lmin after the door S/W pressed? F-FAN O.K Is confivcate AC 220V of the MAIN PCB connection CN72 PIN 1.3? Re-connection CON72 Check wire Does the door...
  • Page 45 ② In case of R-fan doesn’t run (Run the DC voltage) (Reference BLDC MOTOR run circuit) START Is it forced operation? Forced operation Does it run lmin after the door S/W pressed? F-FAN O.K Is confivcate AC 220V of the MAIN PCB connection CN72 PIN 1.3? Re-connection CON72 Check wire...
  • Page 46 ③ In case of COMP FAN doesn’t run (run the DC voltage) (Reference the BLDC MOTOR run circuit.) START Is it forced operation? Forced operation Has vltg the MAIN PCB connectionPIN3 of CN70?(12V or 9V) Check CON70 connection check the MOTOR Has qave-length the MAIN PCB connection pin7 tof CN70?
  • Page 47 9. Diagnosis of disorder and method of repair. 2. SENMI electronic mode (SR-61NMC, 65NMC) 1. When not operating Power START Is power voltage output between MAIN PCB PIN5 of CN 70 and PINI of CN 71? Repair POWER CORD and electric cord. Is TRANS secord side voltage of MAIN PCB normal? Exchange DC-TRANS.
  • Page 48 2. Self diagnosis failure A. Freezer’ s temp·sensor failure START Is freezer’s temp·sensor O.K? change temp ,senser Is MAIN PCB connection (CON30) O.K? Connection failure Re-connection Is connection of temp sensor O.K? Check connected sensorwire Is input vltg of MICOM pinll O.K? Check short and iced lead PCB and temp, sensor O.K Ckeck connection Charge MAIN PCB...
  • Page 49 C. Freezer’ s defrosting sensor failure START Is freezer’s defrosting sensor O.K? Change sersor Is Main PCB connection (con30)O.K? Connection failure Re-connection Is connection of detrosting sensor O.K? Check connected sensor wire Is input of MICOM pin 9 O.K? Check lead and short PCB and temp.sensor O.K Check connection.
  • Page 50 3.In case of FAN in the refrigerator doern’t run REFRENCES “Be sure to check cooling FAN under forced operation” 1. Freezer FAN, refrigerator FAN and COMP COOLING are off when COMP is off. 2. Though the COMP is on, the FAN is not always on because the FAN is off when the temperature was reached to the set point (Forced operation included) 3.There isn’t delaying time to run the fan after door open (COMP on state) A.
  • Page 51 B. In case of R-FAN do not run. ① Check START Select Forced operation Forced operation FAN is operating condition to ROTRAY S/W or SENSOR? Reference checked ROTARY S/W and changed set up. Does it uun after the door S/W pressed? F-FAN O.K Does the door S/W works nomally? Change DOOR S/W...
  • Page 52 ② Check ROTARY S/W START Is proper the retrigerator's temp·regulator? Regulate temp regulator Is temp·regulator O.K? Change temp,regulator Is ROTARY S/W vltg and resistance of MAIN PCB O.K? Fix connect part and wire Is retrigerator's sensor resistaance O.K? (Referce separate temp.TABLE) Change refrigerator's sensor Fix MAIN PCB ASSY and COMP connector...
  • Page 53 4. Badress management of freeze cycle Appearance Caun termeasure Cause EVAP is cold and warm COND is warm, when EVAP Interruption for Pour into ice. is cold. moisture(Iced) This movement is reply. Other material is Cond is cold EVAP isn’t cold. Check interrupt section and infiltrated and cooling Comprssor temp.
  • Page 54 10. Disassemble and Assemble Drawing And Parts List 10-1. Freezer comoartment(SR-61KTC, 65KTC) LAMP-INCANDE SENT VAMP-HOLDER SENSOR-ASSY COVER-LAMP FRE, B COVER-LAMP FRE, A COVER-LAMP FRE,ASSY SCREW SHELF-FRE TRIM-SHELF TRAY-ICE SHELF-FRE,ASSY SENSOR-ASSY CAVER CASE-ICE THERMO-FUSE, ASSY EVAP-FRE, ASSY CASE-ICE CUBE GR0MMET-MOTOR WIRE-HARNESS...
  • Page 55 10-2. Freezer compartment (SR61NMC,65NMC,69NMC) WIRE HARNESS-ROTART SCREW-TAPPING LAMP-INCANDESENT LAMP-HOLDER SENSOR-ASSY PBA-PANEL CASE-LAMP FRE, ASSY SCREW-TAPPING CASE-LAMP, FRE KNOB-TEMP, CONTROL, F COVER-LAMP, FRE SHELF-FRE TRIM-SHELF TRAY-ICE SHELF-FRE,ASSY SENSOR-ASSY CAVER CASE-ICE THERMO-FUSE, EVAP-FRE, ASSY ASSY EVAP-FRE MOTOR-FAN COVER-MOTOR CASE-ICE CUBE SCREW-TAPPING HEATER-DRAIN GR0MMET-MOTOR BUMPON-MOTOR FAN-SIROCCO...
  • Page 56 10-3. Refrigerator Compartment (SR-61KTC, 65KTC) COVER-LAMP,FRE LAMP-INCANDESENT THERMO-FUSE, ASSY SENSOR-ASSY SCREW-TAPPING COVER-MOTOR WIRE HARNESS-MOTOR COVER-MOTOR EVAP-REF GROMMET-MOTOR EVAP-REF, ASSY COVER-EVAP REAR MOTOR-FAN FAN-SIROCO INS-ASSY SPACER-COVER EVAP BUMPON-MOTOR SPRING-FAN COVER-EVAP,REAR,ASSY SENSOR-ASSY CATALYST-LTC SEAL-CUTT, M/F COVER-PURIFIER CAP-SCREW SCREW-TAPPING COVER-EVAP, FRONT SCREW-TAPPING COVER-EVAP, FR ASSY...
  • Page 57 10-4. Refrigerator Compartment (SR-61NMC,65NMC,69NMC) COVER-LAMP,FRE LAMP-INCANDESENT THERMO-FUSE, ASSY SENSOR-ASSY SCREW-TAPPING SCREW-TAPPING COVER-MOTOR EVAP-REF GROMMET-MOTOR COVER-EVAP REAR EVAP-REF, ASSY FAN-SIROCO BUMPON-MOTOR SPACER-COVER EVAP INS-ASSY GROMMET-MOTOR SPRING-FAN SCREW-TAPPING PBA-PANEL ISCREW-TAPPING KNOB0TEMP CONTROL,R SENSOR-ASSY COVER-EVAP,REAR,ASSY CATALYST-LTC COVER-PURIFIER WIRE HARNESS ROTART COVER-EVAP, FRONT SEAL-CUTT, M/F SCREW-TAPPING COVER-EVAP, FR ASSY CAP-SCREW...
  • Page 58 10-5. Related Components of CABI & UNIT (SR-61KTC,SR-65KTC) SCREW-TAPPING COVWE-PCB PANEL PBA-MAIN SCREW-TAPPING C-OIL SCREW-TAPPING SCREW-TAPPING CORE-FERRITE TRANSE-DC ABSORBER-COMP C0OIL(REW) CASE-PCB PANEL TUBE-PVC PIPE-SUB, COND ASSY ASSY-CABI FOAM COVER-HINGE UPP COVER-COMP SCREW-TAP TLTE SHIN-HINGE PIPE. CONNEG HINGE-UPP COVER-COMP, ASSY GROMMET-SUB COND...
  • Page 59 10-6. Related Components of CABI & UNIT (SR-61NMC,SR-65NMC,69NMC) SCREW-TAPPING SCREW-TAPPING COVWE-PCB PANEL SCREW-TAPPING ABSORBER-COMP PBA-MAIN CASE-PCB PANEL TUBE-PVC C-OIL PIPE-SUB, COND ASSY ASSY-CABI FOAM SCREW-TAPPING COVER-HINGE UPP FIXER-HINGE UPP SCREW-TAP TLTE COVER-COMP SHIN-HINGE PIPE. CONNEG HINGE-UPP COVER-COMP, ASSY GROMMET-SUB COND MOTOR-CIRCUIT FAN-SIROCCO SCREW-TAPPING...
  • Page 60 10-7. Related Components of DOOR HANDLE-FRE ASSY-DOOR FRE SCREW-MACHINE REINF-HANDLE FRE SCREW-TAPPING GUARD-FRE SCREW-MACHINE HANDLE-FRE, ASSY HANDLE-TRIM FRE STOPPER-DOOR, FRE PBA-PANEL BUTTON UPP,L COVER-DISPLAY BUTTON LOW,L STOPPER-DOOR SCREW-HANDLE CASE-DISLAY BUTTON UPP,R BUTTON LOW,R GUARD-EGG CASE-DISPLAY-ASSY CASE-DLSPLAY, ASSY GUARD-EGG, R SCREW-TAPPING TRAY-EGG ASSY-DOOR FOAM REF HANDLE-REF...
  • Page 61 11. DISASSEMBLE & ASSEMBLE METHOD (TURN OFF THE POWER OF REFRIGERATOR) 11-1. Disassemble and Assemble method of DOOR in nefrigerator 1. Disassemble lathch the top 7. Disassemble fixed pivot to cover of refrigerator arrow direction with catch the door. 2. Disassemble fixed screw with (+)driver 8.
  • Page 62 11-2. Replacement of freezer in door lamp 1) Remove the back cover lamp and then in door lamp. 2) Fix the cover of in door lamp. SR-61KTC SR-61/65/69NMC 11-3. Replacement of refrigerator in door lamp 1) Remove a screw from cover and disassemble the cover like example.
  • Page 63 11-4. Disassemble of refrigerator cooling part 1) Push the cold storage and remove it 2) Remove foods and shelves inside the Refrigerator 3) Push the cover of vegetable / fruit room and box and pull it out. 4) disassemble the cap with (-)driver and remove the 2 screws with (+)driver.
  • Page 64 6) Disassemble the wire housing of electric assembly in the left. 7) Remove 3 screws of pull appart and disassemble it. 8) Pull the insulating material and disassemble the electric housing. 9) Remove screws of evap. cover rear and release the looking part of both left and right using (-)driver.
  • Page 65 ● Cooling cycle unit assembly in refrigerating compartment 2 holders securing evaporator CABLE TIE TAPE-AL (Groove for preventing small ice when defrosting) FOAM-LEX Temp·fuse Temp·sensor ● Cooling cycle unit cover assembiy in the refrigerating Noise protector...
  • Page 66 11-5. Disassembly of cooling part in the freezing room 1) Pull out the shelf. 2) Remove screws of evap covwe and release the CAP SCREW vsing (-)driver. 3) Disconnect the each terminal of wire housing on top of the left side. 4) Remove screws of evap cover rear and release the locking point using (-)driver.
  • Page 67 11-6. Disjonting of DID door 1) Disassembie inner lower GROMMET of DID door 2) Disassemble DID door with up the iower HINGE 3)Assemble reverce order of disassemble, ● Assembly specifcation of Freezer cooler part Fixed screw DARAIN-HEATER 9˚ EVAP-ASSY FORM-LEX Temperature fuse Frasting sensor...
  • Page 68 11-7. Unit assembly Remove a screw from the back lower cover of unit. (SR-61/65KTC, SR-61/65/69NMC) Assemble specification of unit. Pace condenser Condenser Motor fan entrance Hot pipe entrance S-PIPE Rubber for Noise protector Pace condenser entrance Compressor Rubber for Noise protector...
  • Page 69 11-8. Electric box assembly Disconnect the power cord. Remove the cover of electrical box with insert driver. Assembly specification of electric box. TEST S/W EMI FILTER Condenser FUSE...
  • Page 70 11-9. Electric box assembly Disconnect the power cord. Remove the cover of electrical box with insert driver. Assembly specification of electric box. TEST S/W FUSE Condenser TRANS-POWER...
  • Page 71 12. PACKING PACKING OF DOOR AND CABINET TAPE:W48X100(2EA) TAPE:W48X100(6EA) TAPE:W48X150 FOAM-PE PACKING EXAMPLE OF FRONT SIDE AND BACK SIDE. EXAMPLE OF PERFECT PACKING UPPER CUSHION:4EA FILAMENT TAPE:W24XL2390 P.E BAG:1EA TAPE:W48XL300(2EA) TAPE:W48X100(1EA) DOOR GAPEPS LOWER CUSHION (LEFT, RIGHT) CORRUGATED CARDBOARD BOX PAD-CABINET:T10x1950xl400...
  • Page 72 Circuit way...

  • Page 73: Block Diagram

    13. Main Components Specifacations. 13-1) REGULATOR 3-TERMINAL 1A POSITIVE TO-220 VOLTAGE REGULATORS The KA78XX series of three-terminal positive regulators are available in the TO- 220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible.
  • Page 74 ABSOLUTE MAXIMUM RATINGS = 25 unless otherwise specified) Characteristic Symbol Value Unit Input Voltage (for Vo = 5V to 18V) (for Vo = 24V) Thermal Resistance Junction-Cases Thermal Resistance Junction-Air Operating Junction Temperature Range KA78XX/A 0 ~ +125 KA78XXI -40 ~ +125 Storage Temperature Range -65 ~ +150 ELECTRICAL CHARACTERISTICS KA7805/I...
  • Page 75 ELECTRICAL CHARACTERISTICS KA7812/I (Refer to test circuit, T < T < T = 500mA, V = 19V, C = 0.33 F, C = 0.1 F, unless otherwise specified) KA7812I KA7812I Characteristic Symbol Test Conditions Unit Min Typ Max Min Typ Max = 25 11.5 12.5...
  • Page 76 3.3V VOLTAGE DETECTOR The KA7533 prevents error of system from supply voltage below normal voltage level at the time the power on and instantane ous power off in systems. FEATURES Detecting against error operations at the power ON/OFF. Resetting function for the low voltage microprocessor.
  • Page 77 ABSOLUTE MAXIMUM RATING = 25 ) Characteristic Symbol Value Unit Supply Voltage -0.3 ~ +15.0 Detecting Voltage Hysteresis Voltage Operating Temperature -30 ~ +75 Storage Temperature -50 ~ +150 Power Dissipation Detecting Voltage Temperature Coefficient 0.01 ELECTRICAL CHARACTERISTICS = 25 ) Characteristic Symbol Test Conditions...
  • Page 78 2981 THRU 2984 8-CHANNEL SOURCE DIRVERS Recommended for high-side switching applications that benefit from separate logic and load grounds, these devices encompass load supply voltages to 80 V and output currents to -500mA. The UDN2981A through UDN2984A/LW 8-channel source drivers are useful for interfacing between low-level logic and high-current loads.
  • Page 79 FOR SAFETY OF SERVICE CAUTION Turn off the power of refrigeration when the change and repair of electric control equipment. ● Be caful electric shock → use the regular parts when change the electric control equipment. ● check the named MODEL, regular power, regular electric current and movement temp. →...
  • Page 80 ELECTRONICS 272, Oseon-Dong, Kwangsan-Gu, Kwangju-City, Korea, 506-253 TEL : 82-62-950-6810, 6811 FAX : 82-62-950-6829 © Samsung Electronics Co., Ltd. Refrigerator Division 2001. 06 Printed in Korea Code-No :...

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