Samsung RS277ACPN Manual Download Page 78

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5-10. Temperature Sensing Circuit

5. Circuit Descriptions

1) A thermistor with a negative temperature coefficient (NTC) is used for a temperature

sensor.

2) Resistors, R 306

∼

R310 and capacitors, C 301

∼

C 305 are used for a noise protection

purpose.

3) For the F-sensor, the input voltage into the micro processor (MICOM), VF is calculated

by (Rth x Vcc)/(R303+ Rth), where Rth is a corresponding resistance to the thermistor’s

output (See Ref. 6 in Appendix).

Summary of Contents for RS277ACPN

Page 1: ...e by Side Refrigerator A TOP PJT New product training for refrigerator SIDE BY SIDE BASIC RS277ACPN MODEL NAME RS275ACWP RS277ACWP RS275ACBP RS277ACBP RS275ACPN RS277ACPN RS275ACRS RS277ACRS RS277 RS2...

Page 2: ...uct function Product function 3 3 Full disassembly and assembly Full disassembly and assembly 4 4 Troubleshooting and major adjustme Troubleshooting and major adjustme nt nt 5 Circuit Descriptions 6 6...

Page 3: ...TOP06 NEW MODEL A T0P08 CHANGE RISK FACTOR 1 ASSY COVER DISP 1 Piece 2 Piece Window Design High Brightness Led 2ea New Design PLP Waterproof 2 CASE DISPENSER Outer Spray Application RS267 RS Stainless...

Page 4: ...CHANGE RISK FACTOR 3 ASSY EVAP REF Deodorizer Printing Deodorizer Remove Deodorizer Printing is deleted Single Body New Design Cost Cut Production Quality 4 ASSY PACKING HANDLE Packing in CUSHION UPP...

Page 5: ...Coolselect Zone or Chilled Bin Coolselect Zone or Chilled Bin Cooling Speed Min F Room 220 159 3 177 8 R Room 150 104 2 115 0 32 F Room 26 30 0 28 6 R Room 1 5 1 0 0 4 43 F Room 18 23 7 22 3 R Room 5...

Page 6: ...6 Plastic Drawers Cover Leg Front Xtra SpaceTM Door Bin Ice Maker Ice chute Glass Shelf Door Bin for RS275 Tilt Pocket for RS277 1 Product Information 1 3 Parts Name...

Page 7: ...ay Light Upper Chilled Bin for RS275 Coolselectzone for RS277 Door Bin Top Lips Gallon Door Bin Gallon Door Bins Lights lower RS277 Dairy Compartment Spill proof Glass Shelf Water Filter 1 Product Inf...

Page 8: ...1 4 Product feature 1 Product Information Twin Cooling System Twin Cooling System Multi Flow System Multi Flow System Xtra SpaceTM Xtra SpaceTM Door Alarm Door Alarm CoolSelectZoneTM CoolSelectZoneTM...

Page 9: ...al 26 5 cu ft Refrigerator 16 1 cu ft Freezer 10 4 cu ft Net Dimension W D H 35 9inch x 33 8inch x 70inch Rated Frequency and Frequency AC 115V 60Hz Motor Rated Consumption Power 160W Electric Heater...

Page 10: ...PE Refrigerator SPLIT FIN TYPE Condenser Forced and natural convection type Dryer Molecular sieve XH 9 Capillary tube Dia Length 0 033 130 Refrigerant R134a Freezer Model Temperature Selection ON OFF...

Page 11: ...efrost of F and R 4 hr 10 min Defrost Cycle FRE 12 24hr vary according to the conditions used Defrost Cycle REF 6 12hr vary according to the conditions used Pause time 10 2 min Defrost Sensor F Defros...

Page 12: ...120V 140W DISPENSER Heater Interlock with F FAN AC 115V 5W WATER PIPE Heater AC 115V 5W WATER TANK Heater AC 115V 4W Damper Heater DC12V 1W Thermal Fuse for preventing Overheating of Refrigerator Defr...

Page 13: ...odels RS275 RS277 Rated Voltage AC 115V 60Hz MOTOR BLDC FRE DC12V DREP3030 LA MOTOR BLDC REF DC12V DREP3020 LA MOTOR BLDC Circuit DC12V DRCP3030 LA Lamp FRE AC120V 40W 1EA Lamp REF UPPER AC120V 40W 3E...

Page 14: ...15 1 7 Dimensions of Refrigerator inches 1 Product Information...

Page 15: ...Optional Material Specification 1 Product Information Photograph Part Name Part Code FILTER WATER ASSY DA29 00003B ASSY PACKING SUB DA99 00240N LAMP INCANDENT 40W 4713 001206 LAMP INCANDENT 30W 4713...

Page 16: ...ol cycle 1 Product Information Double Click Compressor Sub condenser Side Cluster Pipe FRE Side Cluster Pipe REF Hot Pipe Dryer Capillary Tube Refrigerator Evaporator Freezer Evaporator Suction Pipe C...

Page 17: ...18 1 10 Cooling Air Circulation 1 Product Information Freezer Refrigerator...

Page 18: ...R COOL Speeds up the cooling process in the refrigerator FRIDGE BUTTON To set the fridge temperature press the button repeatedly to change the set temperature in sequence between 34 and 46 LIGHTING CH...

Page 19: ...ct a set temperature press the Freezer Temp button The display shows the set temperature from 14 25 to 8 14 in sequence 2 Quick Ice Freezer Temperature Control Interior Temperature of the freezer will...

Page 20: ...right away but there is 10 seconds lag time to an actual operation When this button is pressed again the Power Freeze function stops and the indicator is of immediately 1 2 If you select Power Freeze...

Page 21: ...her than 14 50 10 10 respectively if Power Freeze is selected then the Refrigerator Fan will be off If Power Cool is selected then the Freezer Fan will be off 4 2 When both functions are selected ther...

Page 22: ...pass the ice Crusher 1 4 If Ice off is selected the ice maker will stop working This option will be terminated when Cubed and Crushed options are selected 1 5 The ice chute door must remain open for 5...

Page 23: ...nction 2 3 C Fan Motor Delay Function of the Machine Compartment Condenser Fan Delay function Ranges of ambient temp Operation Above 66 19 Condenser Fan is ON as soon as the compressor is on 60 65 16...

Page 24: ...ed in every minute 2 2 To cancel this function press Quick Cool button again or Thaw button or Select button Otherwise it will be terminated 60 minutes later automatically 2 3 After this function ends...

Page 25: ...to red at the 6th month The EEPROM in the control board counts a period of time regardless of a power failure 1 2 Press Ice Type button for 3 seconds 1 3 If Ice Type button and Child lock button for...

Page 26: ...27 The Ice maker is referred to the device with an automatic ice production storage in the ice bucket and dispensing through the ice chute 1 Ice maker parts 2 Product function 2 6 Ice Maker Function...

Page 27: ...the bucket back fully so that the guide ice of ice maker should not touch the back of bucket If the back of bucket is touched the guide ice of ice maker the ice maker will not make ice any more becaus...

Page 28: ...s the sensor located under the ice tray will measure the tray temperature If the temperature is maintained lower than 1 17 for 5 minutes and the ice full switch is off position the ice tray twisting p...

Page 29: ...ed by this button 7 Ice off function 5 1 When the Ice off option is selected by Ice Type button the ice making process will cease 5 2 When the ice making process ceases the final state will be the ice...

Page 30: ...n time 3 A defrost interval depends on the ambient temperature the number of door openings and the door open time 4 A minimum interval is 6 hours and a maximum is 8 hours for the refrigerator and 12 h...

Page 31: ...e off the front leg cover by turning the three screw counter clockwise Removing the Water supply line Separating the Water Supply Line from the Refrigerator by pressing the coupler and pulling the wat...

Page 32: ...osed remove the upper Hinge cover using a screwdriver 2 Disconnect the wires 3 Remove hinge screws and ground screw counter clockwise and take off the upper hinge along the arrow 3 Full disassembly an...

Page 33: ...move the door from the lower hinge by carefully lifting the door 2 Remove the lower hinge from the bracket hinge by lifting the lower hinge in the direction of the arrow 3 Full disassembly and assembl...

Page 34: ...ter clockwise and take off the upper hinge along the arrow Removing the Lower hinge 1 With the door closed remove the upper hinge cover using a screwdriver 2 Remove hinge screws and ground screw count...

Page 35: ...1 Open the door 2 Grasp the gasket and pull in an outward motion until the molded gasket separates from the door liner DOOR GASKET 3 Disconnect the wire connector in the direction of the arrow 1 Remov...

Page 36: ...items and pull out for easy access 1 Pull the shelf out as far as it goes 2 Lift it up and remove it DRAWER IN REFRIGERATOR The door gasket is a molded gasket set into a channel located in the door li...

Page 37: ...p while turning 1 2 turn clockwise until the lock position is aligned Do not over tighten EVAPORATOR COVER Pull out the screw cap and remove the screw Take off motor and lamp wire connector located on...

Page 38: ...an ductwork while disconnecting the wire connector lamp and thermistor EVAPORATOR FAN MOTOR The evaporator fan is located in the middle rear of the refigerator This fan circulates cold air in the refr...

Page 39: ...evaporator 4 Remove the evaporator 5 With a file score the capillary tube just upstream of the soldered point Break off the soldered section to help prevent solder from plugging the tube during solder...

Page 40: ...driver unlock the locking tabs and pull the switch out until the wire connector is visible 2 Disconnect the wire connector and remove the switch DRAWER IN FREEZER The switch is located in the left han...

Page 41: ...ide the partition out 3 Remove the screws 2 on the bottom front of the case 4 Slide out the case while disconnecting the wire connect AUGER MOTOR CASE The ice dispenser is located in the upper portion...

Page 42: ...e cover 1 Remove the screw and the light cover EVAPORATOR COVER IN FREEZER 1 Pull out the screw caps and remove screws 6 2 Remove the evaporator cover in the direction of the arrow as shown UPPER DUCT...

Page 43: ...IN FREEZER Evaporator is located in the bottom of freezer to produce cold air driven across the evaporator coils 1 Take off the ductwork in Freezer 2 Disconnect the wire connector Heater Bimetal and T...

Page 44: ...located at the top left of freezer vent It sends temperature signals to the micro processor ICEMAKER THERMISTOR The Ice Maker thermistor is located in its bottom The temperature signal sends the micro...

Page 45: ...p by turning the eight screws counter clock wise 2 Disconnect the wire connector 3 Remove the assy support circuit motor by unlocking the tabs and lifting it up 4 Insert the flat tip screw driver into...

Page 46: ...TOR O L PTC Insert the flat tip screwdriver into the fan and removing the cover relay along the arrow Remove the OLP or PTC along the arrow Remove the OLP or PTC along the arrow If you want to reassem...

Page 47: ...48 4 Troubleshooting and major adjustment 4 1 Troubleshooting 4 1 1 If power is not ON Double Click...

Page 48: ...49 4 Troubleshooting and major adjustment 4 1 Troubleshooting 4 1 2 If the compressor and cooling fan motor don t work normally Double Click...

Page 49: ...50 4 Troubleshooting and major adjustment 4 1 Troubleshooting 4 1 3 If defrost function don t work normally Double Click...

Page 50: ...51 4 Troubleshooting and major adjustment 4 1 Troubleshooting 4 1 4 If there is a trouble with self diagnosis Double Click...

Page 51: ...52 4 Troubleshooting and major adjustment 4 1 Troubleshooting 4 1 5 If alarm sound Double Click...

Page 52: ...53 4 1 Troubleshooting 4 1 6 If the panel PCB is not working normally 4 Troubleshooting and major adjustment Double Click...

Page 53: ...54 4 1 Troubleshooting 4 1 7 If fan doesn t work 4 Troubleshooting and major adjustment Double Click...

Page 54: ...55 4 1 Troubleshooting 4 1 8 If Cool Select Zone isn t operated normally 4 Troubleshooting and major adjustment Double Click...

Page 55: ...56 4 1 Troubleshooting 4 1 9 If the lamps of freezer refrigerator fail in lighting 4 Troubleshooting and major adjustment Double Click...

Page 56: ...57 4 1 Troubleshooting 4 1 10 If the ice chute cover solenoid doesn t work 4 Troubleshooting and major adjustment Double Click...

Page 57: ...58 4 1 Troubleshooting 4 1 11 If Crushed Ice Cubed Ice doesn t work properly 4 Troubleshooting and major adjustment Double Click...

Page 58: ...get in the ready mode for a forced operation The display panel will return to normal after 20 seconds in the ready mode At the ready mode press any button except Ice Type and Child Lock once to start...

Page 59: ...ll be cycled at 14 25 for the freezer and 34 1 for the refrigerator 1 5 In order to cancel this mode at any time select the next mode on the ready mode or power of the system 2 Refrigerator Defrost Re...

Page 60: ...immediately when the doors are closed 4 Troubleshooting and major adjustment 4 4 Cooling Off Function This function is for a display purpose on the floor of show room or store 1 Mode ON OFF 1 1 For t...

Page 61: ...uttons simultaneously for 8 seconds is acceptable 1 4 After a replacement of bad sensor or a cancellation of this function this self diagnostics will end 2 Self Diagnostics in the normal operation 2 1...

Page 62: ...R SENSOR REFRIGERATOR DEFROST SENSOR REFRIGERATOR FAN ERROR ICE MAKER function error CoolSelect ZoneTM SENSOR REFRIGERATOR DEFROST ERROR EXIT SENSOR FREEZER SENSOR FREEZER DEFROST ERROR FREEZER FAN ER...

Page 63: ...sor itself failure and so on The voltage should be within the range of 4 5V 1 0V between MAIN PCB CN30 6 and 8 Indicate Error when the temperature sensed by Refrigerator defrosting sensor is higher th...

Page 64: ...EEZER DEFROST SENSOR Freezer evaporator defrosting sensor connector missing contact failed electric wire cut short circuit sensor itself failure and so on The voltage should be within the range of 4 5...

Page 65: ...LED lights will be turned off At this time press button For the REFRIGERATOR FAN only one rpm is applied for the current models so that and show REFRIGERATOR FAN operation only The FREEZER FAN and CON...

Page 66: ...temperature will be ON 4 Troubleshooting and major adjustment Press both buttons simultaneously for 12 seconds 1 Initially all products set the code 0 2 After 20 seconds from adjustment a new setting...

Page 67: ...nce Value 0 Code Temp shift Code Temp shift 0 0 8 1 0 5 1 1 0 5 9 2 1 0 2 2 1 0 10 3 1 5 3 3 1 5 11 4 2 0 4 4 2 0 12 5 2 5 5 5 2 5 13 6 3 0 6 6 3 0 14 7 3 5 7 7 3 5 15 8 4 0 Example 1 If you are lower...

Page 68: ...e 1 Code Temp shift Code Temp shift 0 0 8 1 0 5 1 1 0 5 9 2 1 0 2 2 1 0 10 3 1 5 3 3 1 5 11 4 2 0 4 4 2 0 12 5 2 5 5 5 2 5 13 6 3 0 6 6 3 0 14 7 3 5 7 7 3 5 15 8 4 0 Example 1 If you are raising the c...

Page 69: ...e ice maker Reference Value 2 Code Volume to supply water 0 85 cc 1 95 cc Shift the Ice maker temperature sensor Reference Value 4 Code Volume to supply water 0 1 17 1 3 16 2 5 15 3 7 14 4 9 13 5 11 1...

Page 70: ...71 5 1 Block diagram 5 Circuit Descriptions Double Click...

Page 71: ...72 5 2 SCHEMATIC DIAGRAM 5 Circuit Descriptions Double Click...

Page 72: ...73 5 3 WIRING DIAGRAM 5 Circuit Descriptions Double Click...

Page 73: ...them again 5 Plays role of operating the genuine room taste damper and the damper heater 6 Displays LED to the genuine room taste display driving part and processes key signals 7 Displays LED to the p...

Page 74: ...75 5 5 CONNECTOR ARRANGEMENT Main Board 5 Circuit Descriptions Double Click...

Page 75: ...ted DC power will generate a constant waveform on the switching transformer using a high speed 100KHz switching motion of TOP223Y The D104 will rectify the generated voltage and transform into a stead...

Page 76: ...ime for the microprocessor operation If the specification of resonator changes micro processor can not work properly Note 5 8 Reset Circuit The reset circuit is to initialize the values RAM other sect...

Page 77: ...to the terminals and through the resistors R404 and R403 for the freezer and the refrigerator door respectively 2 The micro processor senses the door s open and close based on engaged voltages Low 0V...

Page 78: ...is used for a temperature sensor 2 Resistors R 306 R310 and capacitors C 301 C 305 are used for a noise protection purpose 3 For the F sensor the input voltage into the micro processor MICOM VF is cal...

Page 79: ...f the IC 9 decorder TC4028BP received signals from MICOM pins 3 6 an output signal per 2 miliseconds comes out from Q3 Q41 Q8 Q6 Q9 Q7 Q0 Q2 and Q4 pin in sequence This signal enters to a driver IC in...

Page 80: ...11 12V will be applied to the LED input terminal and sink the LED output terminal to 0V Therefore LED will be ON for 2 miliseconds 2 Key Scan The 6 step signals Q6 Q4 are applied to scan the 6 keys b...

Page 81: ...ll and Cool 1 2 CoolSelect Zone has an additional display panel Panel LEDs are off white the doors are closed When a door is open micro processor senses its signal and LEDs will be on 1 3 The basic op...

Page 82: ...Select Zone Drawer For Thaw the evaporator heater of refrigerator is ON and the damper is controlled by the refrigerator temperature 2 2 The stepping motor controlled by a Driver IC TA7774P IC8 operat...

Page 83: ...drive circuit 1 1 This refrigerator adopts a BLDC motor produces energy consumption Motors of the freezer refrigerator and the machine compartment are composed of the BLDC For RS2534 R fan is operated...

Page 84: ...2 motor rpm High 11 1V 10V 10V Low 10V 10V 8 3V Under the conditions the fans will be operated in 2 options such as High and Low mode Generally it is operated in the High mode during a day time and in...

Page 85: ...s EEPROM is semiconductor memory not to be erased It can be used in the area of unstable electric power 5 15 Option Circuit There are a variety of models that have a different function A different mod...

Page 86: ...base and collector functions of IC3 turns on and connects the GND Relay 73 will be grounded through 14 of IC Magnetic lines will generate so that the second side of RY73 is activated and 115 230V is...

Page 87: ...88 5 17 Load Drive Circuit 5 Circuit Descriptions Double Click...

Page 88: ...ard 1 Is the back of the refrigerator too near to the wall 2 Was anything dropped behind or under the refrigerator 3 A ticking sound may be heard from inside the refrigerator This is normal and occurs...

Page 89: ...properly Allow sufficient space between stored food for efficient air circulation No water is supplied 1 Is the water pipe connected and the shut off valve open 2 Is the water supply pipe crushed 3 I...

Page 90: ...e models Water dispenser has not been used for a long time Dispense water until all water in system is replenished Water in first glass is warm on some models 1 Normal when refrigerator is first insta...

Page 91: ...s about one and a half gallons 2 Call for service 3 Set to a warmer setting 4 Turn off the icemaker remove cubes and turn the icemaker back on Water on kitchen floor or on bottom of freezer 1 Drain in...

Page 92: ...93 6 Reference Information 6 2 Model name nomenclature...

Page 93: ...94 The End Thank you...

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