Samsung RS20NCSL Service Manual Download

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Electricparts

Items

F-room defrost heater

Condenser for

Comp.(monolithic)

Running

Start

Type

Action

Type

ON temperature

OFF temperature

Start relay

Overload relay

L.V.T(LOW VOLTAGE TRANSFORMER)

F room cooling fan motor

Comp. Cooling fan motor

Freezer interior light

Refrigerator interior light

Door switch

Supply cord

Grounding screw

R-room cover damper

R room electrically driven damper

F room heater sub

F room heater glass

Conducting at F defrosting

200W

60W

130W

Specification

Initial resistance: 68

Ω±

20% (Ambient temperature : 25

℃

)

130

℃

DC 12V DREP3030LA 0.3A

DC 12V DRCP3030LA 0.24A

AC 250V 0.5A 2EA

TO BE FOLLOWED LOCAL STANDARD

BSBN (Bronze screw)

4EA

250VAC,12

㎌

J531Q32E4R7M1802

250VAC,12

㎌

J531Q32E4R7M1802

350VAC,5

㎌

J531Q34E220M3502

350VAC,5

㎌

J531Q34E220M3502

350VAC,5

㎌

J531Q35E330M3852

4TM437RHBYY-53 4TM437RHBYY-53 4TM317SHBYY-53 4TM317SHBYY-53 4TM265RHBYY-53

110 115V/60Hz 127V/60Hz

220V/50Hz

230 240V/50Hz

30W (110 127V)

25W (220 230V)

Summary of Contents for RS20NCSL

Page 1: ...S20NCSL RS20NCSW RS20NESL RS20NESW Model SIDE BY SIDE REFRIGERATOR SAMSUNG Home Appliance Service For the latest parts information please access to our service web site http www e4buyer com refrigerator ...

Page 2: ...pliance may result in personal injury and property damage The manufacturer or dealer cannot be responsible for the interpretation of this information SAMSUNG ELECTRONICS Technical Service Guide Copyright ⓒ2002 All rights reserved This service guide may not be reproduced in whole or in part in any form without written permission from the SAMSUNG ELECTRONICS Company WARNING ...

Page 3: ...PECIFICATIONS 9 6 INTERIOR VIEWS AND DIMENSIONS 12 7 FREEZING CYCLE AND COOL AIR CIRCULATION ROUTE 14 8 MECHANICAL DISASSEMBLY 16 9 FUNCTIONS AND OPERATION 22 10 CIRCUIT DESCRIPTION 27 11 DIAGNOSIS AND TROUBLESHOOTING 36 12 ILLUSTRATED PARTS CATALOGUE 42 APPENDIX Ⅰ Ⅰ CIRCUIT DIAGRAM 57 ...

Page 4: ...k the use circumstance of refrigerator If the refrigerator is installed at the place that is damp or wet or status of installation is unstable change the installation place Do earth in case of need Particularly Be sure to earth when there is a risk of an electric leakage by humidity or wetness Do not use multi plugs in a plug socket at the same time Check the power cord and socket is damaged press...

Page 5: ...g out to exchange the interior lamp of the refrigerator It may cause electric shock On repair make sure that the wires such as harness are bundled tightly Bundle tightly wires in order not to be detached by the external force and then not to be wetted Check if there is any trace indicating the permeation of water If there is that kind of trace change the related components or do the necessary trea...

Page 6: ...n of cooling inside of freezer refrigerator and keeps food fresher for longer 2 High humidity for fresher food You can keep food fruit and vegetables fresh for longer because your refrigerator supplies highly humidified cold air 3 Door Alarm When the refrigerator door is left open for more than two minutes a musical alarm is automatically triggered This feature helps you save electricity and prese...

Page 7: ...hen disassemble the upper hinge cover 2 Disassemble bolts and screws to the counter clockwise by using a tool and take off the upper hinge along the arrow Take care when you disassemble the door to ensure that it does not fall on you 3 Disassemble the door from the lower hinge by lifting the door 4 Disassemble the lower hinge from the bracket lower hinge by lifting the lower hinge in the direction...

Page 8: ...0 N C SW Product R Refrigerator Capacity Cu ft Door Type S Side By Side Handle Type C Sky Bar Handle E Deluxe Bar Handle Option N Nothing Color SW Snow White SL Stainless Looking 4 NOMENCLATURE Label Location ...

Page 9: ...ns width x depth x height Rated frequency Hz Rated voltage V Rated consumption of Comp W Rated consumption of Electric heater W Refrigerator type Refrigerant Refrigerant quantity Freezing Capacity Products weight Items Specification Volume capacity Total Volume Freezer Volume Refrigerator Volume Model Name 60 110 115 140 60 127 125 50 220 120 50 60 220 140 50 230 125 ...

Page 10: ... 7 2 minutes THERMISTOR PX41C 5 0 at 25 AC 250V 10A 77 0 5 Items Specification Freezing parts Inner Temperature detection parts Freezer Types Freezer temp Colder Normal Cold Thermistor F sensor 502AT Types Refrigerator temp Colder Normal Cold Refrigerator Defrostperiod Defrost sensor F defrost sensor Temperature fuse Period of initial defrost F defrost Defrost period of freezer Pause Types Spec Ra...

Page 11: ... room heater glass ConductingatFdefrosting ConductingatFdefrosting ConductingatFdefrosting 200W 60W 130W 3W 1W Specification Initial resistance 68Ω 20 Ambient temperature 25 130 5 69 9 DC 12V DREP3030LA 0 3A DC 12V DRCP3030LA 0 24A AC 250V 0 5A 2EA TO BE FOLLOWED LOCAL STANDARD BSBN Bronze screw 4EA 250VAC 12 J531Q32E4R7M1802 250VAC 12 J531Q32E4R7M1802 350VAC 5 J531Q34E220M3502 350VAC 5 J531Q34E22...

Page 12: ... DIMENSIONS 6 1 The Name of Each Part Freezer Interior light Ice tray Shelf Food Guard Drawer Leg cover Refrigerator Dairy compartment Interior light Shelf Egg tray Fresh container option Food Guard Vegetable and fruit drawer ...

Page 13: ...13 6 2 Dimensions of Unit ...

Page 14: ...G G C CY YC CL LE E A AN ND D C CO OO OL L A AIIR R C CIIR RC CU UL LA AT TIIO ON N R RO OU UT TE E 7 1 Freezing Cycle Compressor Condenser Pipe cluster Pipe hot Dryer Capillary tube Evaporator Accumulator Pipe suction Compressor ...

Page 15: ...15 7 2 Cooling Air Circulation Freezer Refrigerator ...

Page 16: ... the switch out until the wire connector is exposed The light of freezer refrigerator are located at upper side of each compartment 1 Remove the screws 2 Remove the lamp cover by unlocking the hook 1 Pull the shelf out as far as it goes 2 Lift it up and pull it out from the unit The ice tray is located at bottom of freezer shelf mid 1 Pull the tray out by sliding The drawers are located at bottom ...

Page 17: ... as it goes 3 Lift it up and pull it out from the unit The tray ref is located at bottom of shelf ref in refrigerator compartment 1 Pull the tray ref out as far as it goes 2 Lift it up slightly and pull it out from the shelf 1 Lift the guard up and pull it out from door liner SHELF LOW REF IN REFIGERATOR TRAY REF FOOD GUARDS 17 ...

Page 18: ...om the unit 4 Disconnect the sensor wire connector and pull the cover out from the unt Before disassemble the cover Should be removed cover duct front 1 Remove the screws 3 EA 2 Grasp the bottom edge of the cover and pull it out from the unit 3 Disconnect the wire connector and pull the cover out from the unt 1 Remove the fan propeller 1 EA 2 Disconnect the wire connector from body of the cover 3 ...

Page 19: ...l fuse is located on accumulator of evaporator 1 Disconnect the wire connector of thermistor defrost 2 Cut the cable tie for securing the thermistor 3 Separate the thermistor from the evaporator Do not desolder evaporator to replace the thermistor only Before disassemble the thermistor Should be removed cover duct front 1 Remove the sensor cover 2 Separate thermistor The thermistor is located at i...

Page 20: ... the back side cover assembly 2 Separate insulation of cover multi from the cover 3 Remove the sensor After disassemble cap screw disassemble the screw Disassemble the connectors then pull out the damper cover from refrigerator After disassembling the screw from the damper cover disassemble the temperature control part by pulling forward from the damper cover Disassemble the screw from the assembl...

Page 21: ...the middle of machine compartment it cools down the sub condenser and compressor 1 Disconnect the wire connector of Fan 2 Remove the screws 1 EA on the drain water tray 3 Take out the condenser fan assembly The sub condenser is located in the machine compartment 1 Desolder the compressor discharge the outlet of sub condensor 2 Take out the sub condenser Machine Compartment Electric Box driver driv...

Page 22: ...the LED lamps will turn on or off as shown on the table 2 Refrigerator The refrigerator temperature can be set to a level between 1 level cold to 9 level colder Push the REF TEMP button repeatedly until the desired level is reached At each level the LED lamps will turn on or off as shown on the table The higher level you set the lower temperature inside the unit NOTE LED condition on off blink Tem...

Page 23: ... including the pause times or the selection of release function 1 The freezer defrost is decided according to the integration time of Compressor ON 2 At the initial power ON freezer defrost is performed after 4 hours of integration time of Comp ON 3 After this a defrost period is variable from 6 hours to 11 hours in accordance with the use condition and ambient environment 4 The defrost period is ...

Page 24: ...nning is selected compressor is in action immediately without 5 minutes delay action If defrost is proceeded at this time defrost stops immediately If the forced running is selected compressor and F fan is operated on pull down for 24 hours and R room is controlled by set temperature The forced running is performed continuously until the completion 24 hours or change to another mode or release If ...

Page 25: ...e sensoritselfinferiority theothers Displayed inferiority When temperature detectionofsensorisover65 orbelow 50 Outer Sensor F Cold F room LED No DetachingthesensorHousing faultof Connection openorshortofpower cable sensoritselfinferiority theothers Displayed inferiority When temperature detectionofsensorisover65 orbelow 50 F Sensor F Cold Mid F room LED No DetachingthesensorHousing faultof Connec...

Page 26: ...on 1 According to the ambient temperature the condenser fan located in the machine compartment is operated with different modes Display table of the presently operating parts NO CONTENT DISPLAY LED 1 2 3 4 5 6 7 8 9 10 DAMPER At the normal times In the conditions of overload over 30 C FAN HIGH C FAN LOW COMP F FAN HIGH F room defrost heater F FAN LOW In the conditions of low temperature R Cold R C...

Page 27: ...citor andcontrolledtoset voltagebyOPamp constantvoltageTRcircuit andthensuppliesasettledvoltagetoBLDCmotor Oscillation circuit is for clock occurrence for synchronism to the information transmission reception of MICOM internal elements and for time calculation If the resonator spec is changed normal function is not performed because of the changing of MICOM timing system Terminal Oscillation frequ...

Page 28: ...S W whether it has an abnormality If the door is opened the internal corresponding fan stops This is occurred because MICOM stops the fan deciding door open although door is closed when being S W contact point abnormality Terminal Door state MICOMinput F room CLOSE OPEN 0V LOW 5V HIGH R room CLOSE OPEN 0V LOW 5V HIGH MICOM terminal Voltage PIN 56 F SENSOR PIN 57 F DEF SENSOR PIN 58 R SENSOR PIN 59...

Page 29: ...to output terminal At this time the peak to peak voltage of rectangle wave is about 12V the shape of output wave is like following 2 KEY SCAN When GRID 3 wave is output this signal is supplied to SW1 by passing through panel PCB R5 resistance 10 At this time pressing SW1 makes a signal small by R508 6 8 and R505 12 and impress peak to peak 4 5V to MICOM MICOM decides that GRID 3 wave is input and ...

Page 30: ...ferent with that because there is a difference in E1 voltage E2 voltage due to the difference of RPM Fan motor protection When the fan is not run because of F fan C fan freezing or power cord connection part inferiority fan self signal is not occurred So MICOM decides fan abnormality At this time perform the fan three seconds ON seven seconds OFF in five times If there is no signal during the fan ...

Page 31: ...to ground and the core of relay causes a magnetic field and makes a contact point on And AC input voltage AC 220V is impressed to the both side end of Comp load Comp acts In case of the MICOM PIN 15 signal is LOW IC04 turns off and the current is not flow to Comp relay coil and makes a relay contact off And Comp stops The load except the compressor equals or likes to the act principal of compresso...

Page 32: ...amper heater is supplied DC12V whenever voltage impresses to the refrigerator and the signal is occurred always in MICOM 24 DC 12V flows into the damper heater by IC3 Note In case of the above damper heater because the PCB cannot detect the open close state there is no self diagnosis function for deciding the abnormality IN the above diagram if a wire cut off linked 3 4 5 of CN7 motor is run as a ...

Page 33: ... D604 0 0 0 0 1 1 1 1 D605 0 0 1 1 0 0 1 1 D606 0 1 0 1 0 1 0 1 Freezer hysteresis unit SHIFT Standard D608 0 0 1 1 D609 0 1 0 1 Basic type 3 0 2 5 3 5 4 0 Refrigerator hysteresis unit SHIFT Standard D607 0 1 Basic type 2 0 1 0 Note Because the option is set at shipment hold free change except a special case After change be sure to As like above circuit diagram it makes change the items related to...

Page 34: ... 13 14 15 16 17 18 19 Resistance Ω 21410 20480 19580 18730 17920 17160 16430 15740 15080 14450 13860 13290 12740 12220 11720 11250 10800 10370 9959 9569 9195 8839 8494 8166 7852 7552 7266 6992 6731 6481 6242 Voltage V 3 408 3 36 3 31 3 26 3 209 3 159 3 108 3 057 3 006 2 955 2 904 2 853 2 801 2 75 2 698 2 647 2 596 2 545 2 495 2 445 2 395 2 346 2 296 2 248 2 199 2 151 2 104 2 057 2 012 1 966 1 922 ...

Page 35: ...35 10 12 Electric Circuit Diagram BLU BLUE BRN BROWN E EARTH GRY GRAY ORG ORANGE PNK PINK PRP PURPLE RED RED S BLU SKY BLUE WHT WHITE YEL YELLOW BLK BLACK W BLK WHITE BLACK W RED WHITE RED ...

Page 36: ...powerofDCtrans Power cord assembly connection check IsDC12V DC5VonmainPCBrun Repair of power part on PCB Is normal the power cord on panel PCB Panel PCB exchange IstheresetIC IC02 outputterminalDC5V Exchange repair of reset IC Checktheconnectionofhousingof mainPCBpartandrefrigeratorpanelconnectionpart REG 7812 7805 out end measurement ExchangeofthemainPCBASS Y Y N N Y Y Y N Y N Y ...

Page 37: ...nutes Is occurred the forced start alarm Exchange the main PCB Exchange compressor relay on the PCB Is compressor run at the forced start IsimpressedDC12Vtothebothside endofcoilofcompressorrelay RY72 onthe mainPCB Exchange inferior sensor Is impressed between the gloomy line and red line of CN70 AC 220V Check power cord connection Check the connection of the lines of main PCB part and compressor s...

Page 38: ...elf diagnosis Start Corresponding sensor change repair Is the freezer defrost heater normal Check the temperature fuse heater self break cord contact Is the temperature of defrost sensor below 5 Forced start for a some times Repair the connection terminal Perform the forced defrost After heating some period check heater off Is the defrost heater run Is the cord connection terminal of main PCB part...

Page 39: ...d to the same BLDC fan with F fan Check it by reference to circuit diagram with the above method Reference Is the compressor off Start Forced start Is it DC 7V DC 12V between main PCB part GND and CN73 1pin Impressthepowerafterfiveminutesfromthepower off CompressorO L protection Checkandrepairthefanmotorselfinferior contact inferiorofcordconnectionpart N Y F fan normal Y Repair the door S W connec...

Page 40: ...torskeepuptheassembly Power off and ON again Exchange the main PCB assembly or D P motor assembly Incaseofpoweron performatimeofopen close runningtoconfirmthatD Pmotorrunornot MeasureafterPBAmainCN72disassembly black brown 150Ω 15 white blue 426Ω 15 yellow red 426Ω 15 Y Repair the connection connector N Y Repair the connection connector N N Is there any abnormality of main PCB CN72 connection conn...

Page 41: ...Circuit service materials list 1 2 3 4 5 6 7 DA41 00113B DA41 00114A DA26 00009G DA26 00009F DA26 00009A DA26 00009H DA32 10105V DA32 10109U DA32 00006B DA32 10109T RS20N DC12V 110V 115V 60Hz 230V 240V 50Hz 220V 50Hz 127V 60Hz PX41C Blue PX41C Yellow PX41C Yellow PX41C White 1 1 1 1 1 1 1 1 1 1 PBA MAIN ASS Y PBA PANEL ASS Y DC TRANS DC TRANS DC TRANS DC TRANS R ROOM SENSOR F ROOM SENSOR F EVA SEN...

Page 42: ...42 1 12 2 IIL LL LS ST TR RA AT TE ED D P PA AR RT TS S C CA AT TA AL LO OG GU UE E 12 1 Parts of Freezer ...

Page 43: ...4 2 4 3 5 5 1 5 2 5 3 6 6 1 6 2 6 3 7 8 8 1 8 2 8 3 8 4 8 5 9 9 1 9 2 9 3 9 4 9 5 9 6 9 7 ASSY SHELF FRE UP GLASS SHELF FRE UP SHELF FRE UP TRIM SHELF ASSY SHELF FRE MID GLASS SHELF FRE MID SHELF FRE MID RAIL TRAY ICE TRIM SHELF TRAY ICE SCREW TAPPING ASSY SHELF FRE LOW GLASS SHELF FRE LOW SHELF FRE LOW TRIM SHELF ASSY SHELF FRE SHELF GLASS SHELF FRE TRIM SHELF CASE BASKET ASSY UP CASE BASKET UP C...

Page 44: ... 1 10 2 10 3 10 4 10 5 10 6 10 7 10 8 10 9 10 10 11 12 13 14 15 15 1 15 2 15 3 15 4 16 DC 12V 110 127V 25W 220 230V 30W 110V 230V 220V 127V 250V 10A 77 ASSY COVER DUCT REAR FRE COVER DUCT REAR FRE COVER MOTOR MOTOR BLDC GROMMET MOTOR W HARNESS SUB FAN PROPELLER SPRING ETC FAN SCREW TAPPING SEAL DUCT REAR GROMMET COVER CHIL COVER LAMP PLATE REFLELTOR LAMP INCANDESCENT SWITCH DOOR ASSY EVAP FRE ASSY...

Page 45: ...45 12 2 Parts of Refrigerator ...

Page 46: ...1 3 2 4 4 1 4 2 5 6 7 7 1 7 2 8 8 1 8 2 8 3 9 9 1 9 2 9 3 9 4 10 10 1 10 2 10 3 10 4 11 11 1 11 2 11 3 12 12 1 12 2 110V 230V 220V 127V 110V 60Hz 230V 50Hz 220V 50Hz 127V 60Hz ASSY SHELF REF UP GLASS SHELF REF UP SHELF REF UP ASSY SHELF REFUP GLASS SHELF REF UP SHELF REF UP RAIL LOW L ASSY RAIL LOW L GROMMET RAIL RAIL LOW R ASSY RAIL LOW R GROMMET RAIL SCREW TAPPING TRAY REF ASSY SHELF REFUP GLASS...

Page 47: ...12 5 12 6 12 7 12 8 13 13 1 13 2 13 3 13 4 13 5 13 6 13 7 14 14 1 14 2 15 16 17 18 19 20 21 22 110 127V 25W 220 230V 30W INS DAMPER REF SUB PBA PANEL INLAY PBA CONTROL SCREW TAPPING SCREW TAPPING COVER PBA CONTROL ASSY COVER MULTI REF COVER MULTI REF MULTI REF ASS Y SEAL MULTI ASS Y GUIDE MULTI SENSOR TEMP COVER SENSOR A COVER SENSOR B ASSY COVER PURIFIER CATALYST LTC COVER PURIFIER TRAY UTILITY C...

Page 48: ...48 12 3 Parts of Unit ...

Page 49: ...2 2 3 4 5 5 1 5 2 6 6 1 7 8 8 1 9 10 11 12 13 14 15 16 17 18 19 20 21 22 22 1 22 2 23 24 25 26 110V 60Hz 250VAC 12uF 127V 60Hz 250VAC 12uF 220V 50Hz 350VAC 5uF 230V 50Hz 350VAC 5uF 110 115V 60Hz 127V 60Hz 220V 50Hz 230V 50Hz 110V 60Hz 127V 60Hz 220V 50Hz 230V 50Hz COVER HINGE UP L ASSY HINGE UP L HINGE UP L SHIM HINGE UP SCREW TAP TITE COVER HINGE UP R ASSY HINGE UP R HINGE UP R SHIM HINGE UP HING...

Page 50: ...31 32 33 34 35 36 36 1 36 2 36 3 36 4 36 5 36 6 36 7 36 8 36 9 37 37 1 37 2 38 39 110V 60Hz 127V 60Hz 220V 50Hz 230V 50Hz 110V 60Hz 127V 60Hz 220V 50Hz 230V 50Hz DC12V RELAY PROTECTOR O L RELAY PTC COVER RELAY WIRE HARNESS COMP DRYER ASSY SCREW TAPPING SCREW TAP TITE SCREW EARTH WIRE HARNESS EARTH ASSY TRAY DRAIN WATER ASSY PIPE SPIRAL COND COVER MOTOR GROMMET MOTOR MOTOR DC BLDC SENSOR SUPPORT CI...

Page 51: ...51 12 4 Parts of the freezer door ...

Page 52: ...W WHITE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR ...

Page 53: ... 00324B DA64 00324C 21 22 23 24 25 26 DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE BASE HANDLE LOW SCREW TAPPING TRIM HANDLE UPP TRIM HANDLE LOW SCREW TAPPING TRIM HANDLE MID A Name of goods CODE NO NO Specification RS20N CSL CSW ESL ESW ...

Page 54: ...54 12 5 Parts of the refrigerator door ...

Page 55: ... SNOW WHITE STS LOOKING SNOW WHITE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE SKI BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE ASSY DOOR FOAM...

Page 56: ...00324C 22 23 24 25 26 27 28 DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE DELUXE BAR HANDLE BASE HANDLE UPP BASE HANDLE LOW SCREW TAPPING TRIM HANDLE UPP TRIM HANDLE LOW SCREW TAPPING TRIM HANDLE MID A Name of goods CODE NO NO Specification RS20N CSL CSW ESL ESW ...

Page 57: ...Appendix Ⅰ Ⅰ RS20N for Circuit Diagram 57 ...

Page 58: ...272 Oseon Dong Kwangsan Gu Kwangju City Korea 506 253 TEL 82 62 950 6810 6811 FAX 82 62 950 6829 ELECTRONICS Samsung Electronics Co Ltd Refrigerator Division 2002 10 Printed in Korea Code DA68 01197A ...

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