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1. Take out the case from the freezer.

2. Remove 2 screws from the assy-supt free.

3. Pull out the holder of the assy-supt free and

disconnect wire terminals.

4. Remove the latch of the cover-evap fr. from the

buttom.

5. Remove each terminal from the top of the

left wire assembly.

2 screws

①

②

③

②

10-5. Disassembly of the cooling cycle unit in the freezer

Содержание SR-L627EV

Страница 1: ...cifications 3 Electrical Part Specifications Standard 4 Circuit Diagram 5 Functions Operating Instruction 6 Circuit Descriptions 7 Trouble shooting 8 Exploed View 9 Disassembly Assembly 10 PCB Circuit Diagram 11 PCB Parts List 12 Specifications of Main Components SR L677EV SR L679EV SR L627EV SR L629EV GREEN ...

Страница 2: ... ones 1 10 Be careful of children There is always the possibility of danger when doing repairs so make sure that children can t come nearby Cleaning After completing repairs clean the surrounding area and the refrigerator and tell the consumer about the repairs being made This appliance contains a small amount of the refrigerant isobutane R600a a natural gas with high environmental compatibility b...

Страница 3: ...l Starting type Refrigerant Oil Charge Freezer Refrigerator Evaporator Compressor SR L629EV SR L679EV SR L627EV SR 677EV LMF 2 Door 4 STAR Electronic control CYCLO PENTANE CYCLO PENTANE A B S A B S 103Kg 108Kg 102Kg 107Kg Yes 820 X 720 X 1790 mm SR L629 7 EV 820 X 770 X 1790 mm SR L679 7 EV No Model Type Freezer performance Temperature control Water dispenser Total Freezer Refrigerator Total Freez...

Страница 4: ...10A 77 5 C Thermal Fuse for preventing overheating of Freezer Defrost Heater Thermal Fuse for preventing overheating of Freezer Defrost Heater 230 240V 230 240V 220V 127V 115V 50Hz 50Hz 50 60Hz 60Hz 60Hz MK4A3Q L1U DK182Q L2U SK190H L2U DK172P L2U MK172P L2U DK172C L2U MK172C L2U 240V 15W 240V 25W 110V 130V 15W 110V 130 30W RatedVoltage Frequency Compressor Condenser Over Load Protector STARTING R...

Страница 5: ...5 4 Circuit Diagram 4 1 230V 240V 50Hz 220v 50Hz 60Hz 127V 60Hz 115V 60Hz ...

Страница 6: ... PURPLE RED RED S BLU SKY BLUE WHT WHITE YEL YELLOW BLK BLACK W BLK WHITE BLACK DEFROST HEATER F DEFROST HEATER R F DRAIN HEATER R DRAIN HEATER COMP COOLING FAN F ROOM LAMP R ROOM FAN R LAMP HEATER F ROOM FAN R LAMP INVERTER FLUORESCENT LAMP M C S 2 3 2 O L P 1 5 3 6 CN50 BLK BRN REF ORG YEL PNK BLU PRP GRY WHT S BLU PANEL PCB MAIN PCB R ROOM SENSOR DEFROST SENSOR F DEFROST SENSOR R F DOOR S W R D...

Страница 7: ...ension 5 Function Operating Instruction MODEL SR L679EV SR L677EV SR L629EV SR L627EV A 1790 1790 1790 1790 B 1013 5 1013 5 1013 5 1013 5 C 1508 1508 1458 1458 D 755 755 705 705 E 667 667 617 617 Remarks X Y X Y X Y 7 ...

Страница 8: ...bly Pull it forward Take out food stuffs and pull it out by following the arrow Take out the water bottle with the bottom lever pressed Tray disassembly Pull it out by following the arrow Ice compartment Vegetable compartment Freezing compartment ...

Страница 9: ...5 3 Circulation of Refrigerant H M CYCLE Compressor Sub condenser Cluster pipe Hot pipe Dryer Capillary tube R Evaporator F Evaporator Accumulator Suction pipe Compressor 9 ...

Страница 10: ...5 4 Cool Air Circulation 10 ...

Страница 11: ...ion of refrigerator compartment 2 1 From 7 C 1 C each one key is selected in 1 C interval 2 2 After the initial key selection the former selected temperature is displayed and within 5seconds temperature selection alters as in 2 3 and when final key input is done the final key input temperature converse into a set point after 10 seconds 2 3 Set up is established orderly according to operation of se...

Страница 12: ... but actual operation operates after 10 seconds COMP and FAN operates continuously for 2 hours and 30 minutes and it switches off automatically b When Quick Freeze is selected it will operate unconditionally without considering the temperature of freezer compartment c During the operation the temperature of refrigerator compartment is controlled automatically by the selected temperature d Temperat...

Страница 13: ... is pressed 3 4 During forced running alarm runs 0 1sec on and 1sec off and during forced defrost alarm runs as well 0 5sec on and 0 5sec off 4 Defrost function 1 Once power is on and COMP is ON for 4 hours both refrigerator and freezer starts to defrost at the same time 2 When the defrost time is reached F Fan and COMP runs pre cooling for 20 minutes and starts heating activity then the pause tim...

Страница 14: ... When you press test button once more during forced defrost in freezer and refrigerator it proceeds normal operation 3 2 Alarm will stop during test cancel mode 6 Function of initial Power ON 1 When power ON refrigerator proceed initial self test and if normal it indicate LED in all operation panel for 2 seconds 2 When proceeding self test and if temperature sensor finds fault sensor LED displays ...

Страница 15: ...self test function key press quick freezer and quick cool button for 5 sec is the control of normal temperature is delayed d Fixing default sensor when there is an error or press quick freeze and quick cool button for 5 sec it automatically cancel and activate normally 2 Self test function during normal activation a During normal activation if you press quick freeze and quick cool key together for...

Страница 16: ...ow 50 C Suspected to be over 50 C Suspected to be below 50 C Suspected to be over 50 C Remark F area defroster sensor F sensor Outer sensor R area defroster sensor R sensor Item Freezer Freezer Freezer Refrigerator Refrigerator Display LED Table 1 Display table of self diagnosis 9 Display function of the presently operating parts 1 If you press quick freeze and quick cool button together for 3 sec...

Страница 17: ... freezer and refrigerator display the selected temp a If freezer inner temperature is above 0 C for 10 minute the display of the selected temp will blink b If refrigerator inner temperature is above 15 C for 10 minute the display of the selected temp will blink c When quick freeze is chosen only freezer display will display actual temperature and the actual temperature displays up to 35 C 1 2 3 4 ...

Страница 18: ...pment in products NO 1 2 3 4 5 6 7 8 9 10 11 12 13 DA41 00099A DA41 00099B DA41 00102A DA26 30111H DA26 30111F DA26 30111C DA32 00006C DA32 00006C DA32 10109H DA32 10105A DA41 00013B DA41 20160A DA41 20148A PBA MAIN PBA MAIN PBAPANEL DC TRANS F R DEF SENSOR F R DEF SENSOR R SENSOR F SENSOR INVERTER PCB W2 PJT W2 PJT W2 PJT 220 240V 50 60Hz 105V 50 60Hz 127V 50 60Hz PX 41C PX 41C PX 41C PX 41C 220 ...

Страница 19: ...The rectified voltage passed through D101 104 becomes DC 5V through voltage regulator MC7805 REG1 The power DC5V is supplied to the power around micom and sensor detector 2 The input AC Voltage of DC trans secondary registers 15V at CN10 between The rectified voltage passed throush D105 D108 becomes DC 12V through voltage regulator MC7812CT REG2 The power DC12V is supplied to the relay operation a...

Страница 20: ... 20 Oscillating Frequency 4 00MHz 4 00MHz 0 5 Error When power is supplied to MICOM reset circuit initializes RAM and other parts on MICOM to initialize all programs Reset voltage maintains low for hundreds of µsec comparing to MICOM Vcc voltage when power is input It also maintains high 5V during normal operation But when Vcc drops to 3 4V 3 7V reset port becomes low Port Vcc Reset Voltage 5V 5V ...

Страница 21: ... Contact OPEN CLOSE OPEN CLOSE MICOM PIN NO 39 40 Micom Input Voltage HIGH LOW HIGH LOW 6 5 Temperature Sensor 1 The sensor uses the characteristics of thermistor If temperature goes higher resistance goes lower On the contrary if temperature goes lower resistance goes higher 2 MICOM input voltage is counted by sensor as follows VCC 5V RTH Sensor reisitance 3 For the resistance information on temp...

Страница 22: ...At that time the peak to peak voltage of square signal registers around 12V The grid 1 5 waveforms are as follows 6 6 Button scan and display circuitry 22 ...

Страница 23: ...off 6 7 Load Operation Like the above block diagram operation of F R defrost heater is detervminedy according to the operation of relay for COMP When comp relay is connected to NO terminal comp operates However in case of F R defrost heater electricity dose not pass through the heater though relay works But if Comp relay is connected to NC terminal comp does not operate and heater gets electrieity...

Страница 24: ... 0 D604 D605 D606 Temperature and function values are changeable by using main PCB switching diode Note If possible do not change because the values have been set in factory When changing option functions power should be turned off Only initial power on allows reading option function 24 If possible do not change because the values have been set in factory When changing option funcfions power shoul...

Страница 25: ...k wires DC Trans primary power input Y N Replace DC Trans DC Trans secondary power input Y N Check REG102 MC7812 DC 12V output from REG102 Y N Check REG1 KA7805 DC 5V output from REG1 Y N Check wire connection Reference 1 Page 38 Are wires connected to panel securely Y N Replace panel PCB Exchange main PCB Panel PCB Ass y is OK 25 ...

Страница 26: ...2 Problem with self test 2 1 Problem with outside temperature sensor 2 2 Problem with refrigerator temperature sensor 26 ...

Страница 27: ...2 3 Problem in refrigerator defrost sensor 2 4 Problem in freezer temperature sensor 27 ...

Страница 28: ...2 5 Problem in freezer defrost sensor 28 ...

Страница 29: ...ompressor does not operate in 5 minutes after compressor OFF 2 Compressor does not run during defrosting 3 Compressor does not run because low temperature is detected if freezer and refrigerator sensor is not connected Reference 29 ...

Страница 30: ... plus COMP cooling fan remain OFF 2 When COMP is ON refrigerator fan is not always ON and when refrigerator temperature reached to a set up temperature fan goes OFF 3 When both freezer and refrigerator door close from open each fan takes delay time 5sec 1 min and running COMP ON as a condition Reference 4 1 When freezer fan f fan do not activate 30 ...

Страница 31: ...4 2 When refrigerator fan R fan do not activate 31 ...

Страница 32: ...4 3 When COMP cooling fan do not activate 32 ...

Страница 33: ...f diagnosis function 2 Even though the temperature fuse is off there is no heating but defrosting natural temperature increase comp off time takes longer 3 Even though both F R defrost sensor are open heating does not end and comp off maintains with temperature fuse short circuited Refer to self diagnosis function Reference 33 ...

Страница 34: ...34 ...

Страница 35: ... door is open melody and runs in interval in every 2 minutes 2 If door close is not done properly MICOM will indicate that the door is open then alarm rings If it recognize door open over 10 minutes it switch OFF inner lamp goes OFF Lamp will not go ON in this situation even if door opens Reference 35 ...

Страница 36: ...6 2 If Beep sounds continuously 6 3 When original panel PCB do not activate 36 ...

Страница 37: ...6 4 When buttons of panel PCB is not selected 37 ...

Страница 38: ... SUB PCB Reference Start Y N Replace door switch check main wire Is door switch normal Y N Check relay exchange main pcb Exchange LAMP Is main pcb relay normal RY75 Y N Check connector and wire Is power suppling to SUB PCB input Y N Check SUB PCB power input Is power suppling to DC part C2 of rectifier Y N Exchange LAMP Exchange SUB PCB Fluorescent LAMP normal Fluorescent LAMP SUB PCB 38 ...

Страница 39: ...sure the coil bisection of the relay and check whether it works 2 Measure the apex bisection for open circuit First separate the housing connected to the main PCB CN70 71 and measure the following items Apex 3 DC 12V Operation DC 0V Standstill DC 12V Operation DC 0V Standstill C NO SHORT C NC OPEN C NO OPEN C NO SHORT SHORT OPEN Apex category The voltage of coil bisection Judging the apex bisectio...

Страница 40: ...0 between 2 Freezer sensor measures resistance of CN30 between 3 R defrost sensor measures resistance of CN30 between 4 F defrost sensor measures resistance CN30 between 5 The measurement value above is calculated by comparing the present temperature of the sensor and the temperature table in specification found in the manual Cut off the power code separate the housing from the main PCB CN70 71 an...

Страница 41: ...ction Checking the Door S W Reference5 1 Press the button on the PCB after removing the main PCB cover from the upper part of refrigerator 2 Buzzer will sound to indicate the forced running Forced running Forced running forced defrosting Reference6 This function is used to turn on the comp and fan immediately regardless of the temperature of freezer 1 Press the button during forced running Then R ...

Страница 42: ... 001 15 328 14 688 14 080 14 501 12 949 12 424 11 924 11 447 10 993 10 559 10 146 9 752 9 375 Resistance KΩ 1 9 016 8 673 8 345 8 032 7 732 7 446 7 172 6 910 6 659 6 420 6 190 5 970 5 759 5 557 5 363 5 178 5 000 4 829 4 665 4 508 4 357 4 212 Voltage V 4 364 4 333 4 301 4 268 4 235 4 2 4 164 4 127 4 09 4 051 4 012 3 972 3 93 3 888 3 845 3 802 3 757 3 712 3 666 3 62 3 573 3 525 Voltage V 3 477 3 428...

Страница 43: ...9 Exploed View 9 1 Freezer room 43 ...

Страница 44: ...FRE ASSY DRAIN PLATE FRE ASSY PART NAME SPEC OPTION SR L627 SR L629 SR L677 SR L679 240V 220V 127V 115V EVAPFRE 250V EVAPFRE 230V 230V 110 130V 110 130V ASSYSUPT FREE ASSYSUPTFREE 230V 15W 110 130V 15W 240V 220V 115V 127V 240V 50HZ 220V 50 60HZ 127V 60HZ 115V 60HZ 240V 52W 127V 52W 115V 52W 220V 52W 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 DA67 40203N DA67 40182A DA63 0...

Страница 45: ...LAMP FLUORESCENT 9 2 Refrigeration room 45 ...

Страница 46: ... PART NAME SPEC OPTION SR L627 SR L629 SR L677 SR L679 COVERVEG COVERVEG SHELF MID UPP SHELF MID UPP SHELF MID UPP SHELF MID UPP SHELF UPP SHELF UPP SHELF UPP SHELF UPP 230V 25W 130V 30W ALL 240V 120W 220V 120W 127V 120W 115V 120W EVAP REF EVAP REF 250V 230 240V 50Hz 220V 50 60Hz 115 127V 60Hz DA97 00104A DA97 00184A DA67 10225A DA67 10229A DA63 10359B DA66 10104A DA71 20145A DA68 50153H DA63 0093...

Страница 47: ...A60 00033A DA31 00003L DA31 00003P DA31 00003N DA63 00771A DA32 10109H DA62 00106A DA62 00109A DA70 00402A DA97 00441A DA97 00441B DA97 00441C TRIM COVER SENSOR SPACER DUCT MOTOR FAN MOTOR FAN MOTOR FAN GROMMET MOTOR SENSOR ASSY SEAL COVER EVAP RE SEAL AIR SIDE PLATE DRAIN REF ASSY PLATE DRAIN REF ASSY PLATE DRAIN REF ASSY PLATE DRAIN REF ASSY 29 30 31 32 33 34 35 36 ...

Страница 48: ...SR L627EV SR L677EV 9 3 Door parts 48 ...

Страница 49: ...00365A DA61 00378A DA61 00361A DA63 50145A DA67 00546A DA67 00546B DA67 00546C DA67 00546D DA61 10153E DA61 10142C DA63 50139C DA63 00943A DA97 00353A DA97 00353B DA97 00353C ASSY FOAM DOOR REF ASSY FOAM DOOR REF ASSY FOAM DOOR REF ASSY FOAM DOOR REF ASSY FOAM DOOR REF ASSY FOAM DOOR REF ASSY FOAM DOOR REF ASSY FOAM DOOR REF ASSY FOAM DOOR REF ASSY FOAM DOOR REF ASSY FOAM DOOR REF ASSY FOAM DOOR R...

Страница 50: ...3 00905B DA63 00905C DA63 00905D DA63 00905E DA97 00216A DA67 30216A DA63 00902A DA67 00545A DA97 00217A DA71 20155B COVER CONTROL PANEL COVER CONTROL PANEL COVER CONTROL PANEL COVER CONTROL PANEL BUTTON PCB L SILVER BUTTON PCB L GOLD BUTTON PCB R SILVER BUTTON PCB R GOLD GASKET BUTTON PCB L GASKET BUTTON PCB R PANEL PCB COVER CONTROL PANEL ASSY COVER CONTROL PANEL ASSY COVER CONTROL PANEL ASSY CO...

Страница 51: ...9 4 Cabinet parts unit 51 ...

Страница 52: ...0D DA97 00180E DA73 10314G DA65 20101B MK4A3QL1U E01 DK182Q L2U SK190H L2U DK MK 172P L2U DK MK 172C L2U DA73 30102B DA34 10003C DA34 10003F DA34 20003W DA34 10003T DA34 10003D DA35 10013B DA35 10013L DA35 10013M DA63 10352A DA71 60141D DA61 40101C DA60 90101A DA63 40004A DA62 00217A REVET CASTER CASTER REAR LEG ASSY HINGE LOW TRIM PLATE ABSORB SHIM HINGE LOW COVER LEG COVER LEG COVER LEG COVER LE...

Страница 53: ...Warning Always take out the power plug when replacing the refrigerator lamp There is the danger of electric shock 53 1 Remove a screw from the cover and pull down the cover with the back latch pressed 2 Pull out the lamp 3 After replacing the lamp assemble the front latch of cover and then connect the back latch and screw on the cover Warning Always take out the power plug when replacing the refri...

Страница 54: ...r clock wise 3 Reassemble the cover in the reverse order of disassembly and plug in and the check if power is cut off by pressing the door switch Warning Always take out the power plug when replacing the refrigerator lamp There is the danger of electric shock 10 3 Replacement of freezer lamp ...

Страница 55: ...driver or similar tools 3 Remove 6 screws from the cover evap ref assy 4 Remove 2 latches from the bottom of the cover in the front of evaporator 5 Remove the evaporator cover by pulling out the bottom of the evaporator cover 10 4 Disassembly of the cooling cycle in the refrigeration room ...

Страница 56: ...56 6 Remove the housing of wires ...

Страница 57: ... Cooling cycle unit assembly in the refrigeration compartment Dust assembly in the refrigeration compartment 57 ...

Страница 58: ...sy supt free 3 Pull out the holder of the assy supt free and disconnect wire terminals 4 Remove the latch of the cover evap fr from the buttom 5 Remove each terminal from the top of the left wire assembly 2 screws 10 5 Disassembly of the cooling cycle unit in the freezer ...

Страница 59: ...59 6 Remove 2 screws from the back cover of the cooling cycle unit and remove the latch with driver Assembly of the cooling cycle unit in the freezer Maintains 9 Coolant noise reduction ...

Страница 60: ...60 1 Remove the screws securing the mechanic compartment cover of the back bottom of the refrigerator 2 Mechanic compartment assembly 10 6 Assembly of mechanic compartment in the refrigerator ...

Страница 61: ...enser D C Trans PBA SUB INVERTER PCB 3 Assembly specification of electric box 2 Remove the cover of electrical box with driver Warning Make sure the power plug is taken out when replacing the components for the main PCB 10 7 Electric box assembly ...

Страница 62: ...n remove it 1 3 Push the latch of control panel assembly with driver and pull out the control panel 2 1 Remove 3 screws from the assembly control panel and pull out the assembly control panel 1 2 Pull out the assembly press lever 2 Without dispenser model 10 8 Temperature controller disassembly ...

Страница 63: ...63 11 PCB Circuit Diagram ...

Страница 64: ...XXI is characterized for operation from 40 to 125 and MC78XXC from 0 to 125 TO 220 1 2 3 1 Input 2 GND 3 Output FEATURES Output Current up to 1 5A Output voltages of 5 6 8 9 10 11 12 15 18 24V Thermal Overload Protection Short Circuit Protection Output Transistor SOA Protection No external components required Output current in excess of 1A Industrial and commercial temperature range ORDERING INFOR...

Страница 65: ...ent Current Quiescent Current Change Output Voltage Drift Output Noise Boltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current Min 11 5 11 4 55 Typ 12 12 10 3 0 12 4 0 5 1 1 75 71 2 18 250 2 2 Max 12 5 12 6 240 120 240 120 8 0 5 1 0 Unit V mV mV mA mA mV dB V mΩ mA A Test Conditions Ti 25 5 0mA Io 1 0A Po 15W Vin 14 5V to 27V Vi 15 5V to 27V Vi 14 5V to 30V Vi...

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Страница 81: ... Samsung Electronics Co Ltd November 2001 Printed in Korea Code No DA68 01130A REV 0 0 ...

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