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5-1-3. When selecting power on/off function

1. Press the “Lock/Unlock” button for more than 2 seconds to switch to “Unlock” status.

2. Press the “Compartment selection” button to select the compartment.

3. At this time, press the “Power” button for more than 2 seconds to turn the power off.

4. At this time, all the LEDs in the display will be turned off with the power off LED turning on.

5. If you press the “Power” button when the power is off, it will turn on the power and recover to “Cabbage Kimchi” and

“Mid”.

6. When the power is turned off, the heater of the applicable compartment is turned off and the valve will be closed.

5-1-4. Rhythm fermenting control pattern diagram

1. The fermenting control pattern varies, depending on the temperature of the Kimchi when it is placed into the storage, the

type of Kimchi being made and the degree of the seasoning selected.

2. In the 1st seasoning cycle, if the Kimchi is at room temperature, the cold control operates.

3. During the seasoning cycle, if the Kimchi is cold, the seasoning heater is turned on and if the Kimchi is warm, the

seasoning heater is turned off.

4. If a failure occurs, such as a sensor error during seasoning, the storage will default to Cabbage Kimchi storage status.

MICOM function and circuit description

- 11 -

: Seasoning heater ON/OFF

: Seasoning heater OFF

Time

Seasoning complete

Seasoning start

Kimchi sensor temperature

Mul Kimchi (10

)

Storage operation

When the Kimchi placed in the refrigerator is cool

When the Kimchi placed

in the refrigerator is at room temperature

1st seasoning

5th seasoning

2nd seasoning

3rd seasoning

4th seasoning

Содержание GR-K243UG

Страница 1: ...MODEL GR K24PS GR K243UG CAUTION PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS MANUAL BEFORE CHECKING OR OPERATING THE REFRIGERATOR KIMCHI REFRIGERATOR SERVICE MANUAL http biz lgservice com ...

Страница 2: ...arts 3 When testing the refrigerator with the power on use insulated gloves for safety 4 When using measuring instruments check the rated current voltage and capacity 5 Do not allow water or moisture to get into the mechanical or electrical parts of the refrigerator 6 Remove all things on top of the refrigerator before tilting it during repairs to avoid spills Be especially careful for thin object...

Страница 3: ...result in damage or injury if instructions are not followed 3 Safety warnings and cautions Use caution to prevent electric shock The control panel main PCB uses 310V When replacing PCB parts wait at least 3 minutes after unplugging Always unplug the refrigerator before repairing Make sure that the power plug is not pressed by the back of the refrigerator Power plug may be damaged and cause a fire ...

Страница 4: ...l etc in the refrigerator Store an object that requires precise temperature control can cause deterioration in quality or unexpected reaction to cause a dangerous situation Academic material Medicine Do not set items particularly flower vase cup cosmetic or medicine on top of the refrigerator It can cause fire and electric shock or cause an injury from dropping Do not stack items or carelessly sto...

Страница 5: ...all dust and foreign material from the housing part connector part and check part It can prevent problems such as tracking or short circuit Always use exact replacement parts Make sure that the model name voltage current and temperature ratings are correct for the electric part Do not bend modify bend pull or twist the power cord It can cause fire or electric shock Allow at least 5 minutes for res...

Страница 6: ...External dimensions Usable volume Top left compartment Top right compartment Bottom left compartment Bottom right compartment Width Depth Height Totalweight Motorpowerconsumption Coolingmethod Store Season Icingremovingmethod Insulationmaterial Freshvegetablebasket Kimchistoragecontainer Drawerstoragecontainer Chungukjangfermentingcontainer Lowtemperaturecatalyticdeodorizingsystem Compressor Evapo...

Страница 7: ...f it is difficult to ground the refrigerator For the circuit breaker you can purchase and use the one with plug and outlet 3 For the grounding connector on back of the refrigerator use a connecting line with a diameter of 1 6mm or longer or a single core cord line with a nominal cross section area of 1 25mm or bigger After soldering bury the copper plate 75cm or deeper from the ground u Size of co...

Страница 8: ...Chapter 4 Circuit diagram Circuit diagram 8 ...

Страница 9: ...pe 3 In Lock status you will not hear a buzzer even when you press the buttons and the functions will not work But even in the Lock status if you press the Compartment selection button it will operate in the order of Lid left compartment Lid right compartment Drawer right compartment Drawer left compartment to show you the selected display MICOM function and circuit description 9 NOTCH Cabbage Rad...

Страница 10: ...lso selected food type differs by the Compartment selection 4 Press the Lock Unlock button to complete the rhythm fermenting At this time if a minute passes without pressing the Lock Unlock button it will automatically switch to Lock status and end the rhythm ferment seasoning selection mode 5 When the rhythm fermenting selection is completed the remaining time is indicated and when seasoning is d...

Страница 11: ... on the temperature of the Kimchi when it is placed into the storage the type of Kimchi being made and the degree of the seasoning selected 2 In the 1st seasoning cycle if the Kimchi is at room temperature the cold control operates 3 During the seasoning cycle if the Kimchi is cold the seasoning heater is turned on and if the Kimchi is warm the seasoning heater is turned off 4 If a failure occurs ...

Страница 12: ...ton on the front display you will hear ding dong sound Refer to 5 2 4 2 Buzzer operating circuit 5 1 7 Power failure compensation function 1 When the power is restored after an outage the refrigerator performs the setting originally programmed except for Error status and Test mode 2 If the power fails during the seasoning process there is not power outage compensation function and the storage defa...

Страница 13: ... C When returning to normal status in test mode Power on 3 way valve open 3 way valve left open Compressor on Immediately 3 min 10 sec Power on Compressor on Lid left compartment seasoning heater on Lid left compartment seasoning heater off 3 way valve open All loads off Compressor on 3 way valve open 3 way valve left open 3 way valvelidright compartment open Lid right compartment seasoning heater...

Страница 14: ...tton together all LED s will turn on except right lid compartment remaining fermentation time display LED s MICOM function and circuit description 14 NO Item Error code display Error contents Remarks Failure of lid left compartment sensor Failure of lid right compartment sensor Failure of drawer left compartment sensor Failure of drawer right compartment sensor Failure of outside temperature senso...

Страница 15: ...g power mode Test 2 lid right compartment cooling power mode Test 3 drawer left compartment cooling power mode Test 4 drawer right compartm ent cooling power mode Normal recovery Press the test switch once Press the test switch once when Test 1 indicates it is completed Press the test switch once when Test 2 indicates it is completed Press the test switch once when Test 3 indicates it is completed...

Страница 16: ...ate There is a danger of electric shock 5 2 2 Oscillation circuit The oscillation circuit provides the clock signal for synchronization and calculation of time in relation to the logic elements of microprocessor IC1 MICOM OSC1 must always use the original rated parts because if the specification changes the timing generated will not be correct causing erratic functioning of the microprocessor 5 2 ...

Страница 17: ...s 1046 5Hz 1174 7Hz 1318 5Hz 45ms 45ms45ms 70ms 750ms 5V 0V 5V 0V 45ms 1568 0Hz 1318 5Hz 1046 5Hz 45ms 45ms45ms 70ms 750ms 5V 0V 5V 0V Type of load Measuring point IC7 10 11 12 13 14 15 Status ON Within 1V OFF 12 13V COMP fan motor Lidleftcompartment seasoningheater Lidrightcompartment seasoningheater Drawerleftcompartment seasoningheater Drawerright compartmentriceheater Drawerleftcompartment Chu...

Страница 18: ...partment sensor in the drawer left and right compartment for storing and seasoning Kimchi The status of each sensor whether open or shorted is shown below MICOM function and circuit description 18 RAR2 10K CON5 CON4 CON3 CON2 Sensor Check point Normal 30 C 50 C Shorted Open Drawer right compartment sensor POINT Voltage Drawer left compartment sensor POINT Voltage Lid right compartment sensor POINT...

Страница 19: ... the coil wrapped around each stator 5 2 8 Power failure compensation circuit located on display PCB uThe power failure compensation circuit recalls the temperature range of the right and left compartment for lid and drawer and maintains these levels if power if interrupted briefly The IC for power failure compensation EEPROM delivers to and maintains the information in MICOM through the serial in...

Страница 20: ... CUP 1 CUP 1 5 CUP 2 CUP 2 5 CUP 3 CUP 3 5 CUP 8 2KΩ 2 CDOWN 1 5 CDOWN 1 CDOWN 0 5 CDOWN Nochange 0 5 CUP 1 CUP 1 5 CUP 2 CUP 2 5 CUP 3 CUP 10KΩ 2 5 CDOWN 2 CDOWN 1 5 CDOWN 1 CDOWN 0 5 CDOWN Nochange 0 5 CUP 1 CUP 1 5 CUP 2 CUP 2 5 CUP 12KΩ 3 CDOWN 2 5 CDOWN 2 CDOWN 1 5 CDOWN 1 CDOWN 0 5 CDOWN Nochange 0 5 CUP 1 CUP 1 5 CUP 2 CUP 18KΩ 3 5 CDOWN 3 CDOWN 2 5 CDOWN 2 CDOWN 1 5 CDOWN 1 CDOWN 0 5 CDOWN...

Страница 21: ...ompartmentcut compensation Lidleft compartment storing temperature compensation 0 Factorydefault 0 Factorydefault 0 Factorydefault 0 Factorydefault Lidright compartment storing temperature compensation Drawerleft compartment storing temperature compensation Drawerright compartment storing temperature compensation Lidrightcompartmentcut compensation Drawerleftcompartmentcut compensation Drawerleftc...

Страница 22: ... the MICOM on the main PCB and the MICOM of the display PCB If there is no communication between these boards for 30 seconds a communication error occurs MICOM function and circuit description 22 MICOM for LED LCD control Receive Notch status Send Error status PWB PCB ASSEMBLY MAIN PWB PCB ASSEMBLY DISPLAY ...

Страница 23: ...hich buttons are pressed and drives the LED display whose driving method is a scan method MICOM function and circuit description 23 D110 IN4004X6 D111 D112 D113 D114 D115 P PR RE EM MI IU UM M S ST TA AN ND DA AR RD D F FI IG GH HT TI IN NG G L LE ED D M MO OD DU UL LE E T TY YP PE E ...

Страница 24: ... 24 MICOM function and circuit description D110 P PR RE EM MI IU UM M M MO OD DE ER RN N C CO OL LO OR R L LE ED D M MO OD DU UL LE E T TY YP PE E ...

Страница 25: ...drawer measure both sensor ends of the connector after separating the connectors of CON 2 3 4 5 CON101 of PWB PCB assembly and main part For the outside sensor measure end of 2 and 5 of CON101 MICOM function and circuit description 25 Measuring temperature C 20 C 77 KΩ 15 C 60 KΩ 10 C 47 3 KΩ 5 C 38 4 KΩ 0 C 30 KΩ 5 C 24 1 KΩ 10 C 19 5 KΩ 15 C 15 9 KΩ 20 C 13 KΩ 25 C 11 KΩ 30 C 8 9 KΩ 40 C 6 2 KΩ ...

Страница 26: ...5 4 PCB parts diagram and parts list 5 4 1 PWB PCB assembly and main parts diagram MICOM function and circuit description 26 ...

Страница 27: ...y and main parts list g The parts list can slightly change according to the situation MICOM function and circuit description 27 ATHENA1 PJT G Z YW396 10AV 10P 1 2 4 6 8 10 BLUE YW396 09AV 9P 1 3 5 8 YELLOW DH12D1 O Q GBL06 ...

Страница 28: ... 28 MICOM function and circuit description ...

Страница 29: ...5 4 3 PWB PCB assembly and display parts diagram and parts list 6871JB1395_ g The parts diagram and parts list can slightly change according to the situation MICOM function and circuit description 29 ...

Страница 30: ... 30 MICOM function and circuit description ...

Страница 31: ... PCB assembly sub parts diagram and parts list common for 6871JB2073A B left and right g The parts diagram and parts list can slightly change according to the situation MICOM function and circuit description 31 ...

Страница 32: ...5 5 PCB circuit diagram 5 5 1 PWB PCB assembly and main circuit diagram 6871JB1246 g PCB circuit diagram can slightly change according to the situation MICOM function and circuit description 32 ...

Страница 33: ...MICOM function and circuit description 33 PWB PCB ASSEMBLY DISPLAY 6871JB1395 6871JB1463 LED Module ...

Страница 34: ...ircuit diagram 6871JB1395_ g The circuit diagram can slightly change according to the situation g This includes the PWB PCB assembly and sub circuit diagram MICOM function and circuit description 34 D110 IN4004X6 D111 D112 D113 D114 D115 ...

Страница 35: ... 35 MICOM function and circuit description ...

Страница 36: ...o absorb the heat and the circulation circuit compressor condenser evaporator etc to operate the phase change of the refrigerant 6 1 2 Refrigerant gas circulation diagram 1 Compressor 2 Wire condenser 3 Drier 4 3 way valve 2 EA 5 Capillary tube lid left 6 Capillary tube lid right 7 Capillary tube drawer left 8 Capillary tube drawer right 9 Evaporator lid left 10 Evaporator lid right 11 Evaporator ...

Страница 37: ...porator Suction pipe Compress the refrigerant from low pressure to high pressure High pressure gas refrigerant exhausts heat and becomes liquid refrigerant There is an absorbent that absorbs the moisture within the circulation circuit Moisture absorption device This is the long narrow pipe where high pressure refrigerant passes to reduce the pressure Low pressure liquid refrigerant absorbs heat to...

Страница 38: ...locker This is effective in high frequency area Using sound absorber This method is similar to the blocking method but uses Styrofoam and glass wool in the transmission path to absorb the sound This is effective in low frequency area Vibration reduction This method blocks the mechanical vibration from the operating part so that it does not reach other parts using vibration reduction rubber etc Dyn...

Страница 39: ...on Parts vibration Compressor resonance sound Compressor noise Operating device noise Wire condenser noise vibration noise u The installation floor surface is not hard enough u The refrigerator is not leveled u Wing sound u Woong Woong sound u Poor balance of the compressor u Contacting sound of the surrounding pipe of the compressor part u Contact sound from the OLP contact point during compresso...

Страница 40: ...ator g When connecting the 3 way valve and capillary tube they must be welded by matching the same color as shown below If not matched it can cause a problem to the refrigerator 2 Operating structure Characteristics of each part 40 Operating coil Pipe inlet Pipe outlet Valve body External structure Operating circuit Internal structure Valve coil ...

Страница 41: ...ance by changing the shape of the valve connected to the bottom of the rotor 4 Operating characteristics Characteristics of each part 41 Left Right compartment open Right compartment open STEP 54 Left Right compartment open STEP 36 Left compartment open STEP 18 Closed area Valve Left side outlet Right side outlet ...

Страница 42: ...inductive motors As shown below it is a 2 pole device with one pole composed of 2 parts On the small pole called the shading pole wire is connected shorted called the shading coil In accordance with the characteristics of the AC motor the motor switches between and to operate but because in the 2 pole device the N and S pole changes within both poles without left and right rotation the device cann...

Страница 43: ...crease is generated from the shading coil to reduce the velocity shifting the center of the magnetic field to the main pole In b zone the change in current is minimal and the negative effect of shading coil is minimal to have the center of the magnetic field in the middle as shown in Fig 2 In c zone the velocity of the main pole decreases but with the negative effect increasing the velocity from t...

Страница 44: ...ng wire disconnected 2 Poor terminal contact Kimchi not seasoned 1 Measure the resistance of both ends of the heater with a tester to see if it is Ω 2 Measure the resistance of both ends of the heater with a tester to see if it fluctuates 1 Exchange the product 2 Properly insert the connector Heater assembly Heater assembly Heater plate External surface of inner case Lid compartment Floor of inner...

Страница 45: ... a short circuit 2 Frame assembly display Using the driver open the slot between the frame display and the case U to disassemble the unit At this time be careful not to apply too much pressure to damage the PWB assembly display or make scratches on frame display and case U g Depending on the mode the service slot is on the top left right side or bottom left right side Cautions for disassembling th...

Страница 46: ...3A 501A 502B 323B 323C 319A 307A 314A 309A 310A 308A 312A 315C 619A 411 319C 329C 315A 315B 304A 618B 318A 310B 420A 327A 243A 243A 410H 203A 243A 243A 281B 281C 221A 233A 233A 230A 230B 281D 281E 221A 233A 233A 200A 200B 604A 420B 604B 604D 604C 604A 420B 604B 604D 604C 618A 327B ...

Страница 47: ...u u GR K24PS Assembly diagram and service parts list 47 248D 147C 249G 249D 248A 104A 249B 147A 248F 147C 147B 212D 270A 155B 236B 248D 248D 248D 248F 248F 155A 236A 206C 104A 248D 248D 207C 212G ...

Страница 48: ...K24PS Assembly diagram and service parts list 48 248D 241A 241A 125C 241B 145B 125D 248B 249A 250A 231A 231B 248B 248B 203B 248G 248C 248G 248C 203B 155C 206F 212A 236C 201B 236D 212B 155C 207D 207D 206G 201A ...

Страница 49: ...3A 500A 502B 323B 323C 319A 307A 314A 309A 310A 308A 312A 315C 619A 411A 319C 329C 315A 315B 304A 618B 318A 310B 420A 327C 243A 243A 410H 203A 243A 243A 281B 281C 222A 233A 233A 230A 230B 281D 281E 222A 233A 233A 200A 200B 618A 327B 604B 604A 420B 604B 604A 420B ...

Страница 50: ... u GR K243UG Assembly diagram and service parts list 248D 147C 249G 249D 248A 104A 249B 147A 248E 147C 147B 242D 270A 155B 236B 248D 248D 248D 248E 248E 155A 236A 206C 104A 248D 248D 207A 212G 234B 234A 204A ...

Страница 51: ...43UG Assembly diagram and service parts list 248D 241A 241A 248B 249A 250A 231A 231B 248B 248B 203B 248G 248C 248G 248C 203B 155C 206F 212A 236C 201B 236D 212B 155C 207B 207C 206G 201A 148B 242C 242B 125C 242A 242B ...

Страница 52: ...P No MFL31842101 MAR 2008 Printed in Korea ...

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