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Contents

1. INSTALLATION

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2. NOMENCLATURE

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3. PRODUCT SPECIFICATIONS

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4. ELECTRICAL PART SPECIFICATIONS & STANDARD

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5. WARRANTY INFORMATION

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6. INTERIOR VIEWS AND DIMENSIONS

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7. REFRIGERATION CYCLE AND COOL AIR CIRCULATION ROUTE

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8. MECHANICAL DISASSEMBLY

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9. REVERSIBLE THE DOOR SWING

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10. INSTALLATION OF THE WATER LINE

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11. TEMP CONTROL &OPERATION FUNCTIONS

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12. OPERATION PRINCIPLES BY PARTS OF CIRCUIT

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13. DIAGNOSTICS

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15. OTHER

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16. PCB DIAGRAM

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17. CONNECTOR ARRANGEMENT&DESCRIPTIONS

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18. BLOCK DIAGRAM

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19. CIRCUIT DIAGRAM

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20. WIRING SCHEMATIC

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21. TEMP TO RESISTANCE OF SENSOR &MICOM PORT VOLTAGE

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Содержание RB195BSBB

Страница 1: ...RB195BSSW RB195BSSB RB195BSVQ RB195BSBB RB215BSSW RB215BSSB RB215BSVQ RB215BSBB REFRIGERATOR REFRIGERATOR PRODUCT FEATURE Reversible Door Auto Ice Maker Fridge Wire Box ...

Страница 2: ...e may result in personal injury and property damage The manufacturer or dealer cannot be responsible for the interpretation of this information SAMSUNG ELECTRONICS AMERICA INC Technical Service Guide Copyright ⓒ2005 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 ...

Страница 3: ... CIRCULATION ROUTE 10 8 MECHANICAL DISASSEMBLY 12 9 REVERSIBLE THE DOOR SWING 19 10 INSTALLATION OF THE WATER LINE 24 11 TEMP CONTROL OPERATION FUNCTIONS 25 12 OPERATION PRINCIPLES BY PARTS OF CIRCUIT 46 13 DIAGNOSTICS 54 15 OTHER 72 16 PCB DIAGRAM 75 17 CONNECTOR ARRANGEMENT DESCRIPTIONS 76 18 BLOCK DIAGRAM 77 19 CIRCUIT DIAGRAM 78 20 WIRING SCHEMATIC 79 21 TEMP TO RESISTANCE OF SENSOR MICOM PORT...

Страница 4: ...ettings The refrigerator should runs smoothly and lower the temperature gradually 4 Once the refrigerator temperature is sufficiently low It is recommended to store foods in the refrigerator It takes a few hours to reach the preset temperatures 2005 Models R B 19 5 SB XAA Product R REFRIGERATOR Capacity 19 19CU FT 21 21CU FT B BOTTOM MOUNTED FREEZER BMF OPTION BETTER B S Buyer BEST BUY S W2 PJT CO...

Страница 5: ...Capillary tube Earth screw Door switch Model Starting type Refrigerant Oil Charge Freezer Refrigerator Evaporator Compressor RB195BSSW RB195BSSB RB195BSVQ RB195BSBB RB215BSSW RB215BSSB RB215BSBB RB215BSVQ BMF 2 Door Electronic control CYCLO PENTANE CYCLO PENTANE A B S A B S 227 241 32 3 X 28 3 X 69 9 32 3 X 30 3 X 69 9 Model Type Temperature control Total Freezer Refrigerator Net Capacity ft 3 Cab...

Страница 6: ...rost Cycle Concurrent Defrost of F and R Defrost Cycle FRE Defrost Cycle REF Pause Time Freezer Sensor Refrigerator Sensor FRE Evap Sensor REF Evap Sensor Ambient TEMP Sensor Defrost Heater FRE Drain Heater FRE Defrost Heater REF Drain Heater REF Ice maker Heater Temperature Electrical parts 242W 52W 120W 38W 10W AC250V 10A 77 5 C Thermal Fuse for preventing overheating of Freezer Defrost Heater T...

Страница 7: ...5 WARRANTY INFORMATION 7 ...

Страница 8: ...semble Door Bin Push it up and slide it out to disassemble Glass Shelf Pull it out until its stop Tilt down and slide it out Ice trays Vegetable Drawer Gallon Bin Light Freezer Drawer 6 Interior Views and Dimensions 6 1 Shelves and Bins ...

Страница 9: ...9 Interior Views and Dimensions MODEL RB195 RB215 A 24 3 26 3 B 28 3 30 3 C 57 8 59 8 6 2 Dimensions of Refrigerator Inches ...

Страница 10: ...tion Cycle and Cool Air Circulation Route Compressor Sub condenser Cluster pipe Hot pipe Dryer Capillary tube R Evaporator F Evaporator Accumulator Suction pipe Compressor 7 1 Refrigerant Route in Refrigeration cycle ...

Страница 11: ...11 Refrigeration Cycle and Cool Air Circulation Route 7 2 Cool Air Circulation ...

Страница 12: ... Disassembly Control Panel 13 Refrigerator Light 14 Freezer Light 14 Evaporator Cover in the Refrigerator 15 Evaporator Cover in the Freezer 16 Evaporator in the Freezer 17 Evaporator in the Refrigerator 17 Machine Compartment Electric Box 18 ...

Страница 13: ...13 Mechanical Disassembly 1 Remove the screws 2 Pull out the control panel 3 Disconnect the wire connector Control Panel ...

Страница 14: ...cover and the screw it again 5 Plug the power cord in and check the lamp by pressing the R door switch Always unplug the power cord before replacing the refrigerator lamp There is the danger of electric shock 1 Remove the cover by pressing the bottom tab 2 Replace the two bulb by turning it counter clock wise 3 Reattach the cover and check the lamp by pressing door switch Warning Refrigerator Ligh...

Страница 15: ...e screwdriver 3 Remove 6 Phillps screws from the cover 4 Unlock the 2 tabs with a flat blade screwdriver on each side of the bottom cover 5 Remove the evaporator cover by pulling out from the bottom of the evaporator cover Evaporator Cover in the Refrigerator 6 Disconnect the wire connector Ductwork of the evaporator fan assembly ...

Страница 16: ...ly 1 Remove all drawers from the freezer 2 Remove screws 2 from the support rail 3 Pull down the holder of the support rail and disconnect the wire connector to remove it 4 Unlock the tabs around the evaporator cover from the buttom 5 Disconnect wire connector from the top left corner 2 screws Evaporator Cover in Freezer ...

Страница 17: ...in the bottom of refrigerator 1 Take off the ductwork in refrigerator 2 Disconnect the wire connector Heater and Thermistor 3 Desolder the capillary tube and the suction line from the 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 soldering 6 Place a ne...

Страница 18: ...ng any electric components Mechanical Disassembly 2 Remove the screws of the compartment cover Slide it up and take out from the refrigerator 3 Mechine compartment assembly Machine Compartment Electric Box Warning 4 Disassemble the electric box cover after removing the screws with a Phillips screwdriver ...

Страница 19: ...igerator 2 Disconnect electric wire on the top of the refrigerator Warning 1 If you want to change the door direction call 1 800 SAMSUNG 2 Read the instructions carefully before starting 3 Handle parts carefully to avoid scrathing paint 4 Set screws down by their related parts to avoid using them in the wrong places 5 Provide a non scratching work surface for the doors ex blanket 6 During door rev...

Страница 20: ...nd scratch the Freezer door 10 After removing the left and right side screws disassemble the Grommet Stopper Door and Stopper Mid of the right bottom of freezer door 8 After removing the screw disassemble the Cover Hinge and the Hinge as below picture 5 Disassemble the fridge door by lifting it upward Be careful not to drop and scratch the fridge door Hinge Mid Hinge Mid Cover Hinge Cover Hinge Hi...

Страница 21: ...ure not to insert it upside down 15 Assemble Freezer Door by fitting Hinge Low into the grommet hinge hole Don t forget to insert washer with grease 16 Fix the additional Hinge mid into the door hole Door S W Door S W 13 Disassemble the Cap Door S W Sleeve and the screws Cap Door S W Cap Door S W Sleeve Sleeve Washer Washer Additional Hinge mid Additional Hinge mid 11 Assemble each part by exchang...

Страница 22: ...emble each part by exchanging its into the reverse side as below picture 22 After removing the screw dissemble the Cover Cap Door and Cover Hinge Cover Hinge Cover Hinge Cover Cap Door Cover Cap Door 17 Assemble the assembled hinge and door to the refrigerator as below picture Don t forget to insert washer with grease Washer Washer Grommet Grommet Stopper Door Stopper Door 21 Fit the fridge door i...

Страница 23: ... the left side assemble them into the right side 26 Assemble the Cover Hinge with the screws as below picture 27 Finally confirm openning and closing of the fridge door 24 Assemble the parts to the reverse side Electric wires must be sealed in covers After door reversing it is necessary to check and adjust the gasket whether it is entirely contact the cabinet or not Grommet Grommet Cap wire Cap wi...

Страница 24: ...ng When using any electrical device such as a power drill during installation be sure the device is insulated or wired in a manner to prevent electric shock All installations must be in a accordance with local plumbing code requirements Slip the compression nut through the plastic tube After inserting the compression nut into plastic tube tighten the compres sion nut onto 1 4 compression fitting u...

Страница 25: ...on 30 11 7 Machine Compartment F Fan Motor Delay Function 30 11 8 Ice Maker Function Only applicable to Model with the Auto Ice Maker function 31 11 9 Defrost Function 35 11 10 Test Function 35 11 11 Function when the power is applied for the first time 36 11 12 Power Compensation Function 37 11 13 Self Diagnosis Function 37 11 14 Power Compensation Function 40 11 15 Option Setting Function EEPROM...

Страница 26: ...unction button is pressed 1 4 The STD temperature for each step is as follows Based on 1 3H copper bar 1 5 When the Freezer button is pressed 7 SEG will be changed immediately But its function will go into operation in 10 seconds When the Freezer button is pressed the current set temp will be displayed And when the button is pressed again within 5 seconds it will carry out the following 1 2 and wh...

Страница 27: ...2 Fridge Temperature Control Step Temp 1 45 2 44 3 42 4 40 5 38 6 36 7 34 1 1 It is selected by pressing the Super Freeze button 1 2 When the Super Freeze button is pressed once Super Freeze will be turned on And then it will repeat Off and On each time you press the button after the above 1 3 With the initial Power On the LED is off When the F Room temperature is over 41 5 1 Super Freeze Function...

Страница 28: ...rate continuously until it reaches to 28 B Comp and R Fan will operate continuously until it reaches to 28 But the operation time will not exceed 2 and a half hours C During the operation of Super Cool the freezer compartment will be controlled according to the Freezer Notch setting Super Freeze and Super Cool Functions Each function will go into operation independently With Super Freeze Comp and ...

Страница 29: ...to cancel its function When t he Chi l d Lock i s sel ect ed al l of t he f unct i on but t ons do not operate So temperature control Super and Ice Off functions wi l l keep their current settings It is devised to prevent children from changing the settings 1 2 When the Child Lock button is pressed the Child Lock LED will light up and when its function is cancelled the Child Lock LED will go off a...

Страница 30: ... Operation it will send out a BEEP sound until the Defrost is completed idling time included or the cancellation is selected 3 4 With Forced R Defrost it will send out a BEEP sound 0 1sec ON 0 75sec OFF and with Forced F R Defrost it will send out a BEEP sound 0 5sec ON 0 5sec OFF Temp Control Operation Functions 11 6 Buzzer Alarm Function 1 The refrigerator is automatically controlled by temperat...

Страница 31: ...er is supplied for the previously set option time Factory set value 5 0 sec and the Water Supply Valve is shut off Water is to be supplied regardless of F R Door Open The Ice Test S W does not operate during water supply After the water supply is completed it will evaluate Water Supply or No Water Supply one and a half minutes later When it becomes water supply condition due to no water supply wat...

Страница 32: ...r supply is the same as that after the completion of the previous water supply regardless of the recognition of Water Supply No Water Supply The number of the previous water supply does not change In other words if the number of water supply before the Ice Test S W is pressed is 3 times the number of previous water supply after the completion of water supply by the Ice Test S W is 3 times Example ...

Страница 33: ...e direction 4 1 1 Detailed movements by step during Ejection 1st step Ejection Temp Check Check whether the temp sensor is below 15 and whether the Ejection Standby time after Water Supply has passed At this time the Ejection Standby time will be reset when it goes into F Defrost during the standby and it will be recounted from the beginning after the completion of Defrost Then it checks if 58 58 ...

Страница 34: ...he function is selected the indicator will be off immediately But when the ice maker is supplying water ejecting ice or performing horizontal leveling it will stop operating after the completion of the next water supply 6 5 When the ice making function is selected again it will accumulate time from the point of the selection and carry out the normal ice making and ejection functions after checking...

Страница 35: ...the LEDs will be off 1 2 When any of Super Freeze Super Cool Freezer and Fridge buttons is pressed within 15 seconds with the display panel shifted to the Test Setting Mode it will be selected in the order of Forced Operation Forced R Defrost Forced F R Defrost Cancel 1 3 When there is no button press within 15 seconds after the display panel is shifted to the Test Setting Mode it will go back to ...

Страница 36: ...Mode is selected it will stop alarming 2 1 When the Test button is pressed one more time during Forced Operation it will go into R Room Forced Defrost Display for Forced R Defrost Press one of Super Freeze Super Cool Freezer Fridge buttons once during Forced Operation 1 When power is applied it will carry out the initial self diagnosis And if there is no error all the LEDs on the display panel wil...

Страница 37: ...ire display for about 3 seconds from the power on point regardless of the notch save if the F Room temperature is lower than 41 5 11 12 Power Compensation Function 1 Self diagnosis with initial power on 1 1 With power on MICOM checks the temperature sensors for errors in a second 1 2 If inferior sensor is found by self diagnosis relevant display LEDs will be all on and off at the interval of 0 5 s...

Страница 38: ...OST RELATED FAULT ICE MAKER OPERATION FAULT LED Display Self Diagnosis Check List 2 Self diagnosis with initial power on 2 1 When pressing the Super Freeze button and the Super Cool button simultaneously for 6 sec during normal operation the entire temperature setting display will blink for 2 sec at the interval of 0 5 sec and when pressing the Super Cool button and the Super Cool button si mul ta...

Страница 39: ...HORT SENSOR TEMP MORE THAN 122 50 OR LOWER THAN 122 50 VOLTAGE BETWEEN MAIN PCB CN30 2 3 SHALL BE WITHIN 4 5V 1 0V 7 F DEFROST ERROR F ROOM HEATER SENSOR HOUSING SLIP OUT CONTACT DEFECT WIRE CUT WIRE SHORT OR TEMP FUSE DEFECT WHEN DEFROST DOES NOT FINISH EVEN AFTER A 70 MINUTE CONTINUOUS HEATING IT DISPLAYS THE ERROR AFTER SEPARATING THE MAIN PCB CN70 WIRE FROM PCB CHECK THE RESISTANCE BETWEEN BRO...

Страница 40: ...us of the load operation command from MICOM MICOM sends out command signals So it does not mean the related components are in operation For example even though it shows that a load is operating it is not operating due to the load defect or the PCB relay defect It can be applied to A S 4 The Load Status Display function maintains for 30 seconds and it goes back to the normal operation OTHERS LOAD R...

Страница 41: ... turned off except Freezer and Fridge All the options operate according to the Option Table So only Fridge and Freezer will be introduced 1 For example if you want to change option and shift the standard temp of R Room to 28 4 2 follow the directions below This function is to change the standard temp and if the current standard temp of F Room is 2 19 it can be lowered by 28 4 2 using the options a...

Страница 42: ...emp Hysteresis Notch Gap for each temperature can be controlled 6 Since option is already set in EEPROM while sending out products at the factory do not change it randomly except for special occasions and do not turn off power before restoring to the normal display because option will be completed when it is restored to the normal display in 20 seconds In 20 seconds after the completion of the adj...

Страница 43: ...mon All Models LED Fridge 0 Set Value F Room Temp Set Value 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Option Value 0 31 1 0 5 30 2 1 0 29 3 1 5 28 4 2 0 27 5 2 5 26 6 3 0 25 7 3 5 32 9 0 5 33 8 1 0 34 7 1 5 35 6 2 0 36 5 2 5 37 4 3 0 38 3 3 5 39 2 4 0 Option Value Ex When raising the fridge standard temperature by 28 4 2 Option Item ...

Страница 44: ...odels LED Fridge 1 Set Value F Room Temp Set Value 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Option Value 0 31 1 0 5 30 2 1 0 29 3 1 5 28 4 2 0 27 5 2 5 26 6 3 0 25 7 3 5 32 9 0 5 33 8 1 0 34 7 1 5 35 6 2 0 36 5 2 5 37 4 3 0 38 3 3 5 39 2 4 0 Option Value Ex When raising the fridge standard temperature by 28 4 2 Option Item ...

Страница 45: ...hanging the Defrost Sensor temperature to 1 4 17 Option Item Set Item LED Fridge Ice Maker Water Supply Time Control 20 Set Value F Room Temp Set Value 0 1 2 3 4 5 6 7 Option Value 5 sec 6 sec 7 sec 8 sec 9 sec 10 sec 11 sec 12 sec Option Value Ex When changing the water supply time to 9 seconds Option Item 3 Ice Maker Sensor Temp Shift This is the standard temperature checking if ice in the ice t...

Страница 46: ...N CIRCUIT 47 12 3 RESET CIRCUIT 48 12 4 EEPROM DETECTION CIRCUIT 48 12 5 DOOR SWITCH DETECTON CIRCUIT 48 12 6 TEMP SENSING CIRCUIT 49 12 7 ICE MAKER OPERATION CIRCUIT 50 12 8 DISPLAY DRIVING CIRCUIT 51 12 9 LOAD DRIVING CIRCUIT 52 12 10 BUZZER CIRCUIT DIAGRAM 53 12 11 MODEL OPTION CIRCUIT 53 ...

Страница 47: ...e output via regulator REG1 7812 And it will supply DC5V to MICOM and power to other circuits via regulator REG2 MC7805ACT and make entire PCB operate 1 It is an Oscillation Circuit for synchronism clock generation and time calculation on the information sending receiving of the MICOM internal logic elements and when specifications for Resonator change the timing system of MICOM changes resulting ...

Страница 48: ...s of compared to Vcc voltage DC 5V at MICOM and it maintains HIGH Vcc Voltage during normal operation But when Vcc drops down to 3 4 3 7V the reset terminal voltage becomes LOW 1 A semiconductor memory EEPROM stores data remembering previous settings regardless of power off which are indispensable especially in power fluctuating areas Also EEPROM sets and uses other options in principle Terminal V...

Страница 49: ...s opened the contact point of the door switch 4 1 becomes closed Then the power of the PCB line flows to the door switch through R404 and 0V is applied to the MICOM terminal And when the door is closed the contact point of the door switch 4 1 becomes open Then the power of the PCB line supplies 5V to MICOM via R404 and R401 which recognize the door as closed turn on the fan at the extra load termi...

Страница 50: ...arate the ice from the tray and return to the horizontal state For restoration motor stops for 2 seconds when the ejection is completed and to rotate in opposite direction output horizontal MICOM PORT NO 46 with high and perform horizontal positioning Motor rotation for ejection operates for 8 3 seconds and stays for 2 seconds Horizontal positioning rotates motor in opposite direction and it stops...

Страница 51: ...DISPLAY DRIVING PRINCIPLE As shown in the wave diagram below Micom sends out high signals through the MICOM 6 terminals of NO 1 2 3 4 5 6 for 2ms each every 12ms This signal goes to output terminal via input terminal of IC51 TD62783AP or KID65783AP Here the peak to peak voltage of the square wave is 11 12V DC and each output wave is as follows ...

Страница 52: ...es low OV and 12V opposite side of coil flows to the Pin 12 of IC70 via the coil and goes into the ground While current flows to the coil the magnetic power arise it turns on the secondary contact point inside K72 and operates when the AC power is supplied to the both sides of the compressor When MICOM Pin 22 becomes Low 0V IC70 Pin 7 becomes Low which cut out the power and the current of RY75 REL...

Страница 53: ...g modified and turned on after the modification Refer to the table above the default factory values are highly recommended unless exceptional cases 12 10 Buzzer Circuit Diagram 1 The circuit is composed of like the above and MICOM controls the alarm function with 2KHz 12V is always applied to the circuit So when MICOM sends alarm signals to Q801 Transistor Bass the transistor is turned on applying...

Страница 54: ...ate 59 13 4 When FAN does not operate 60 13 5 When Defrost does not operate 63 13 6 When Alarm Sound continues without stop 65 13 7 Panel PCB Defect 66 13 8 When Room Lamp does not light up F R Rooms are the same 67 13 9 When Ice Water Valve does not operate Option 69 13 10 When Ice Maker does not operate Option Model installed 70 ...

Страница 55: ...nd do repairing Is Power of primery DC TRANS applied Power Voltage Is Power of secondary DC TRANS applied PCB CN10 AC16V Is 12V terminal normal PCB V105 both terminal Voltage Is 5V terminal normal PCB V104 both termind Voltage Are wire connections of PANEL PCB normal Start YES Change DC TRANS Check PCB REG1 7812 Change PCB YES Check PCB REG2 7805 Change PCB YES Change the refrigerator Set YES YES ...

Страница 56: ... PCB connector CN32 and Temp Sensor normal at the top right of the door Is the voltage of Ambient Sensor of MAIN PCB Connector CN31 normal Is MICOM Pin 57 input voltage normal Identical Voltage of CN31 Start ERROR INDICATION YES Connector contact trouble re insertion Short between connector Sensors Check wires according to the change of the door opening direction Refer to Temp detechion circuit se...

Страница 57: ...rtion Reconfirm electric wire connect section YES Check soldering fault short Lead Touch YES Change MAIN PCB YES Refer to Temp detechion circuit sensor of the circuit explanation Refer to Temp detection circuit sensor of the circuit explanation NO NO NO Change Defrost Sensor Is R Room Defrost Sensor normal Is MAIN PCB CN30 insertion normal Is both trminal VoltageofMAINPCBConnectorCN30 PURPLE BROWN...

Страница 58: ...of MAIN PCB Yellow BROWN normal Is MICOM Pin 51 input voltage normal Identical Voltage of CN30 Start YES Connector contact trouble re insertion Reconfirm electric wire connect section YES Check soldering fault short Lead Touch YES Change MAIN PCB YES NO NO NO Change Defrost Sensor Is F Room Defrost Sensor normal Is MAIN PCB CN30 insertion normal Is both trminal Voltage of MAIN PCB ORANGE BROWN nor...

Страница 59: ...hen COMP does not operate NO NO NO NO YES NO Run Forced Operation Is Forced Operation on Is the MICOM 22 output HIGH 5V Is the IC70 12 LOW 0 7V Is COMP RELAY normal Is the contact of CONNECTOR CN70 contact normal Does COMP ASS Y Function normally Start YES Soldering checkout Change MICOM or PCB Change or repair IC04 Change PCB YES Check RELAY Change PCB Reference Load terminal Measure method YES I...

Страница 60: ... operate 13 4 When FAN does not operate NO YES NO NO NO NO Start Forced Operation Is it during Forced Operation Does Fan operate with DOOR S W presses Including Delay Time Is DOOR S W normal Is the voltage of MICOM 42 5V Close condition Is insertion of CN71 PIN YELLOW of MAIN PCB normal Is voltage of MICOM Pin 27 HIGH 5V Start YES Normal R FAN Change DOOR S W NO Check soldering Change PCB YES Re i...

Страница 61: ... Is insertion of CN71 W BLUE of MAIN PCB normal Start YES Normal R FAN Check temp conditions Select Super Cool NO Change DOOR S W YES Check soldering Change PCB YES Re insert ConnectorCN71 NO Is voltage of MICOM Pin 30 HIGH 5V Check soldering Change PCB YES YES NO Is voltage of IC70 17 LOW 0 7V Check IC70 Change PCB YES NO Is R FAN RELAY SSR72 normal Check RELAY Change PCB YES Check wire assembled...

Страница 62: ...ES Check soldering Change PCB YES Check Relay Change PCB YES Check contact of Connector CN71 again YES YES Check wire assembled status Chang MAIN PCB ASS Y Ambient Temp Range Load Operation Status Comp Fan operates immediately upon COMP ON Comp Fan operates in 3 min after COMP ON Comp Fan operates in 6 min after COMP ON Comp Fan operates in 9 min after COMP ON Comp Fan gets off regardless of COMP ...

Страница 63: ...Sensor Temp higher than 12 Is power supplied to Defrost Heater A Are MICOM 21 15 HIGH 5V R Defrost Heater 21 F Defrost Heater 15 R Defrost Heater IC70 11 F Defrost Heater IC52 17 COMMON RELAY K72 R Defrost Heater K71 F Defrost Heater K70 Are IC70 11 IC52 17 LOW 0 7V Is Defrost Heater Relay K71 K70 normal Is contact of Connector N70 normal Start YES Maintain Forced Operation for a certain time PANE...

Страница 64: ...stance Appendix Temp Sensing Circuit Table Refer to concerned Sensor resistance Appendix Temp Sensing Circuit Table R Defrost Sensor 54 F Defrost Sensor 52 Is the input voltage of MICOM 54 52 higher than the voltage upon the terminated Temp Standby until it reaches a certain temperature Change concerned Sensor YES Normal YES Check temp pick up part Change PCB YES Change PCB A ...

Страница 65: ...d goes off Room Lamp becomes OFF in 10 minutes since it detects Door Open In this case even though Door gets opened Room Lamp does not comes ON Note R DOOR SIGNAL MICOM 43 OPEN 0V CLOSE 5V F DOOR SIGNAL MICOM 42 OPEN 0V CLOSE 5V NO NO NO NO Contact trouble of Connector CN30 Insert it again Is insertion of MAIN PCB Connector CN30 normal Does DOOR S W come in out well Is DOOR S W good in condition A...

Страница 66: ...he change of the door opening direction Check the left right upper door hinge connection according to the change of the door opening direction NO NO NO NO Change PANEL PCB Is PANEL PCB normal Is insertion of PANEL PCB Connector normal Is insertion of PANEL PCB CN50 Connector normal Is insertion of Upper Hinge Cover Connector normal Start YES Re insert PANEL PCB Connector Check contacts Re insert M...

Страница 67: ...tacts Re insert PANEL PCB Connector Check contacts YES Re assemble PANEL PCB COVER YES Release CHILD LOCK YES YES Recheck Change MAIN PCB ASS Y 1 When F R Room Lamps do not light up 13 8 When Room Lamp does not light up F R Rooms are the same Room Lamp F R 1 Check F Room Lamp ON after opening Freezer Door 2 Check F Room Lamp OFF by pushing Door S W 3 Check R Room with using the same method after c...

Страница 68: ...0 CN71 normal Re check the ccutact of the connector CN70 CN71 Normal Re check YES NO NO NO NO Check connector CN30 soldering short Change PCB Are the voltages of MICOM 42 43 for DOOR SWITCH normal Are MICOM 24 29 HIGH 5V Are IC70 13 16 LOW Are lamp controlling relay K73 K75 normal YES Change PCB Change PCB YES Change PCB YES YES NO Is Room LAMP R F normal Change LAMP NO Is DOOR SWITCH normal Chang...

Страница 69: ...l check the ice water valve hose Is the confirming sound of the valve operation heard when Ice Maker Test S W pushed Does Main PCB MICOM 31 have high 5V output Does Main PCB IC70 18 have low 0V output Is the contact point of main PCB RELAY RY71 normal ICE WATER VALVE OPERATION CHECK YES Check short out Soldering PCB change Soldering short check PCB change YES Soldering short check PCB change Refer...

Страница 70: ...ce Maker Test S W F Room Ice Maker It is not possible to check with the power disengaged Pre Check YES YES YES NO Normal Does Ice come out normally Does it rotate with the Ice Maker Test S W pressed Is the voltage at PBA MAIN CN90 more than 11V with the Ice Maker Test S W pressed Is voltage applied to IC90 PIN 7 DC11 12v Ice Check NO Check wires and Ice Maker Sensor Refer to Sensor Voltage Table o...

Страница 71: ...embled state of parts It should be the same as the previous state Check out the surrounding conditions Change the location if the fridge is located at humid wet places or the installed state is unstable If needed ground the fridge Especially if there is a possibility of electric leakage ground is indispensable Do not allow consumers to overload a certain outlet Check out whether the power cord or ...

Страница 72: ...E SHORT THERMAL FUSE HEATER WIRE CUT THERMAL FUSE HEATER WIRE SHORT THERMAL FUSE HEATER WIRE CUT COIL WIRE SHORT COIL WIRE CUT MOTOR WIRE SHORT MOTOR WIRE CUT HOUSING SLIPPED AWAY MOTOR WIRE SHORT MOTOR WIRE CUT HOUSING SLIPPED AWAY MOTOR WIRE SHORT MOTOR WIRE CUT HOUSING SLIPPED AWAY LAMP WIRE SHORT LAMP WIRE CUT HOUSING LAMP SLIPPED AWAY LAMP WIRE SHORT LAMP WIRE CUT HOUSING LAMP SLIPPED AWAY VA...

Страница 73: ...OPEN FAULTY DRIVING CIRCUIT FAULTY K71 K72 NC CONTACT OPEN FAULTY DRIVING CIRCUIT K72 NO CONTACT SHORT FAULTY DRIVING CIRCUIT K70 CONTACT SHORT FAULTY DRIVING CIRCUIT K72 NO CONTACT SHORT FAULTY DRIVING CIRCUIT SSR71 OPEN FAULTY DRIVING CIRCUIT SSR72 OPEN FAULTY DRIVING CIRCUIT K74 NO CONTACT OPEN FAULTY DRIVING CIRCUIT K76 NO CONTACT SHORT FAULTY DRIVING CIRCUIT K75 NO CONTACT OPEN FAULTY DRIVING...

Страница 74: ... of Sensor locations 4 6 Temp Sensing Circuit Table and Part Spec in Manual and evaluate them 1 2 3 4 PBA MAIN PBA PANEL TRANS DC SENSOR 05 W2 PBA MAIN 05 W2 PBA PANEL BLUE 115V 60Hz 220V 50 60Hz 127V 60Hz 230V 60Hz F DEFROST SENSOR R DEFROST SENSOR F SENSOR R SENSOR AMBIENT SENSOR The second part DA41 XXXXX of CODE for MAIN PCB ASS Y PART may change according to MICOM or Option change so check it...

Страница 75: ...signals such as F R Door S W On Off and sends them to MICOM after filtering their noises 5 PLC Power Line Communication Circuit 6 Buzzer Circuit 7 Circuit for model classifying options 8 It is the display driving part controlling the LEDs and the button signals 9 It carries out the Ice Maker operation supplies power to the motor and detects the S W on off 10 It is Relay controlling AC load and ope...

Страница 76: ...MON LINE L F HEATER F DRAIN ICE WATER VALVE R FAN COMMON LINE L R LAMP C FAN F FAN PANEL PCB WIRE PANEL GRID SIGNAL KEY ICE MAKER MOTOR GND ICE EJECT SENSOR TEST S W HORIZONTAL S W ICE FULL S W GND F DOOR S W GND F ROOM SENSOR F DEFROST SENSOR R DOOR S W GND R ROOM SENSOR R DEFROST SENSOR AMBIENT SENSOR GND TRANS IN AC TRANS IN AC ...

Страница 77: ...OAD DETECTI O N SWITCH DETECTION MOTOR CONTROL DOOR CONTROL AD CONVERT CONTROL SENSOR DETECTION CIRCUIT DRIVING PART CONTROL DRIVING PART CONTRIL CIRCUIT DOOR S W DETECTION CIRCUIT MAIN PCB R DEF HEATER R DRAIN HEATER ICE WATER PIPE HEATER AC COMPRESSOR F ROOM FAN R ROOM FAN ICE WATER VALVE F ROOM LAMP R ROOM LAMP DRIVING PART F DOOR SWITCH F ROOM SENSOR AC POWER INPUT POWER CORD AC100 240V EJECTI...

Страница 78: ...IAGRAM AC DC POWER CIRCUIT DRIVING PART CONTROL CIRCUIT SENSOR DETECTION CIRCUIT OPTION CIRCUIT BUZZER CIRCUIT RESET CIRCUIT OSCILLATOR CIRCUIT DISPLAY CONTROL CIRCUIT ICE MAKER CONTROL CIRCUIT EEPROM CONTROL CIRCUIT ...

Страница 79: ...79 20 WIRING SCHEMATIC ...

Страница 80: ...4 93 2 95 96 8 98 6 100 4 102 2 3 107 3 057 3 006 2 955 2 904 2 853 2 802 2 751 2 700 2 649 2 599 2 548 2 498 2 449 2 399 2 350 2 301 2 253 2 205 2 158 2 111 2 064 2 019 1 974 1 929 1 885 1 842 1 799 1 757 1 716 1 675 1 636 1 596 1 558 1 520 1 483 1 447 1 412 1 377 1 343 1 309 1 277 1 253 1 213 1 183 16419 15731 15076 14452 13857 13290 12749 12233 11741 11271 10823 10395 9986 9596 9223 8867 8526 8...

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