LG Dios GR-J303UG Series Скачать руководство пользователя страница 16 | Manualshive

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3-2-4. LOAD/BUZZER DRIVE CRICUIT

(1) Load Drive Circuit

Type of Load

COMP,

Mechanical

Area FAN

UPPER

FAN

MOTOR

UPPER

DEFROST

HEATER

FRONT-C

HEATER

SINGLE
MOTOR

DAMPER

MIDDLE

DEFROST

HEATER

MIDDLE

FERMENT

HEATER

LOWER

FERMENT

HEATER

MIDDLE

FAN

MOTOR

Measuring Point(IC7)

No.10

No.16

No.12

Q1 Collector

No.11

No.15

No.13

Q2 Colletor

No.14

Status

ON

Within 1V

OFF

11 ~ 13 V

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Содержание Dios GR-J303UG Series

Страница 1: ...CAUTION PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS MANUAL BEFORE CHECKING OR OPERATING THE REFRIGERATOR KIMCHI REFRIGERATOR SERVICE MANUAL http www lgservice com MODEL GR J303UG ...

Страница 2: ...se care so that water does not enter into electrical parts around the machine room 6 Take care so that things should not fall down by removing them cleanly on the product when leaning the product forward or backward Especially take care of thin things glass panels books 7 Ensure to consult the repair and maintenance center shop when the cold storage cycle is damaged to prevent that gas inside of t...

Страница 3: ...8W Indirect Cooling System Force Automation Automation Force Light Polyurethane Foam 1 EA Behind 2 EA 14 EA 1 EA 3 EA 1 EA 2 EA LC62LBCH Fin Tube Type Fin Tube Type Wire Condenser Back Plate Condenser R134a 160 g α10G 310cc Heater Sheath Capacity Defrosting System Cooling Cycle Net Capacity Top Compartment Middle Bottom Compartment Method Start End Evaporation Compressor Evaporator of Top Compartm...

Страница 4: ...0 W 120 V UL 7 W Cutted at 70 C Cutted at 70 C 250 V 9 A 14 250Vac Electrical System Rating Defrosting Heater Top Middle P T C Overload Protector Fan Motor Top Fan Motor Middle Condenser Cooling Fan Motor Front C Heater Fuse M Top Fuse M Middle Protection Fuse Capacitor R ITEMS SPEC ...

Страница 5: ...2 CIRCUIT DIAGRAM 5 ...

Страница 6: ...ase of a power shut or power reconnection during rhythm fermenting the temperature returns to Mid for the applicable food type 3 Buzzer sound neither ring ever pressing the button in Lock status nor performs function 3 MICOM FUNCTION AND EXPLANATIONS OF CIRCUITS 6 NOTCH Temperature setting Cabbage Radish MulKimchi Vegetble Fruit Light Freezing Frozen Food Chilled Food Min Mid Max Min Mid Max Min M...

Страница 7: ...ut the uppper compartment only has the underground fermenting function 3 When you press the Ferment button when the food type is Vegetable fruit Light freezing it is set to Cabbage Kimchi Fermented 1 4 Press the Lock Unlock button to end the food storage and storage temperature selection At this time if no button is selected for 1 minute without the Lock Unlock button pressed the unit will automat...

Страница 8: ...urned off 4 If a failure occurs such as a sensor error during seasoning the storage will default to Cabbage Kimchi storage status 5 The 2nd seasoning is not included in the underground fermenting in the 3rd seasoning Perform the Low temperature mature keeping the Temperature is 3 C Time Seasoning complete Kimchi sensor temperature Mul Kimchi Storage operation W h e n t h e K im c h i p la c e d in...

Страница 9: ...ent have not passed 3 In input of initial power cool from the upper compartment where the upper compartment is Data Frz Deep Frz Frz when all upper middle lower compartment is not satisfactory and firstly cool from the middle lower compartment for the other case 3 1 5 LCD BACK LIGHT CONTROL LIMITED TO LCD MODEL 1 To make the LCD display easy to see the LCD back light is turned on for 1 minute for ...

Страница 10: ...re changes according to ambient temperature weak cold in winter excess cold in summer 3 1 11 DEFROSTING REMOVAL OF FROST 1 Defrosting is simultaneously performed by using the defrosting heater at the upper compartment and the middle compartment whenever sum of compressor operation time reaches to 6 hours 2 Defrosting is started if sum of compressor operation time reaches to 4 hours in input of ini...

Страница 11: ...less than 45 C In power failure service No initial operation is done if error occurs during operation POWER ON SINGLE MOTOR DAMPER ON COMP ON F FAN ON SINGLE MOTOR DAMPER OFF 5 6 sec 0 5 sec 3 WAY VALVE ON 3 WAY VALVE OFF 3 6 sec 0 5 sec FRONT C HEATER ON 0 5 sec 0 3 sec 10 sec 0 3 sec 4 5 sec STEPPING MOTOR DAMPER ON STEPPING MOTOR DAMPER OFF POWER ON DEFROSTING HEATER AT UPPER COMPARTMENT ON DEF...

Страница 12: ...frosting at upper compartment Poor defrosting at middle compartment Poor communication Upper compartment sensor is disconnected or shorted Middle compartment sensor is disconnected or shorted Lower compartment sensor is disconnected or shorted Upper compartment defrosting sensor is disconnected or shorted Middle compartment defrosting sensor is disconnected or shorted Ambient temperature sensor is...

Страница 13: ...frosting at upper compartment Poor defrosting at middle compartment Failure of single motor damper Poor communication 1 2 3 4 5 6 7 8 9 10 11 O 15 min ON 15 min OFF O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O Don t defrost immediat ely return O O O O O O O O O O O Don t defrost immediat ely return O O O O O O O 15 min OPEN 15 min CLOSE O O O No compensation of ambient tem...

Страница 14: ...if pressing both upper Store button and lower Ferment button for 5 seconds or more It is released if pressing them again for 5 senconds or more Release check Remaining time display part of the lower compartment turns on with pressing for 5 seconds or more Input check Display for the flavor keeping part turns on with pressing for 5 seconds or more 14 Check Lower compartment cooling system Check Upp...

Страница 15: ... each part is as follows 3 2 2 OSCILLATION CIRCUIT Oscillation circuits are intended to generate clock for synchronization for information transmission receipt of logic elements inside of the IC1 MICOM and generate basic time for time calculation Rated parts must be used since the OSC1 does not operate or time calculated at the IC1 changes where SPEC changes 3 2 3 RESET CIRCUIT The reset circuits ...

Страница 16: ...Area FAN UPPER FAN MOTOR UPPER DEFROST HEATER FRONT C HEATER SINGLE MOTOR DAMPER MIDDLE DEFROST HEATER MIDDLE FERMENT HEATER LOWER FERMENT HEATER MIDDLE FAN MOTOR Measuring Point IC7 No 10 No 16 No 12 Q1 Collector No 11 No 15 No 13 Q2 Colletor No 14 Status ON Within 1V OFF 11 13 V 16 ...

Страница 17: ...nput circuits for detecting signal of the test switch for checking refrigerator or the reed switch of the single motor damper 17 REED Switch Ex Lock Ding D Dong sound Ex Lock Ding D Dong sound Off IC101 Pin 3 61 5V IC101 Pin 2 62 0V Measuring point Status 45ms 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 ...

Страница 18: ...upper defrost sensor and the middle defrost sensor attached to the evaporator at the upper middle compartment to detect the defrost return temperature Status in short or open are as follows 18 Sensor Check points Normal 30 C 50 C In Short In Open Ambient temp Sensor Upper Sensor Middle Sensor Lower Sensor Upper Defrost Sensor Middle Defrost Sensor 0 5V 4 5V 0V 5V POINT Voltage POINT Voltage POINT ...

Страница 19: ... failure See 3 1 11 Failure Diagnosis Function 3 Rotates once for 15 seconds irrespective of temperature to detect damper status in input of initial power initial drive inspection 4 Open Close of the damper status of the reed switch and No 1 pin input of the IC1 MICOM are as follows SINGLE MOTOR DAMPER u The above time is time until the single motor stops after status change of the reed switch 19 ...

Страница 20: ... by using the terminal of the MICOM PIN53 52 and 51 as shown in waveform of each part below This signal is output to the output terminal No 10 11 14 15 via the input terminal No 3 6 8 of the IC12 TA7774P as IC for motor drive The motor rotates by which motor coils wound around each phase of the stator forms rotation magnetic field The stepping motor damper rotates by which motor coils wound around...

Страница 21: ...s from the MICOM pin 50 47 and 48 Explanation For driving method of the motor send signal in the cycle of 30ms by using the terminal of the MICOM PIN 50 47 49 and 48 as shown in waveform of each part below This signal is output to the output terminal No 10 15 7 2 via the input terminal No 11 14 6 3 of the IC11 TD62308AP as IC for motor drive The motor rotates by which motor coils wound around each...

Страница 22: ...the middle compartment increases by 1 C if changing compensation resistance at the middle compartment RCT from 10K current resistance to 18K corrected resistance 22 Upper Compartment Middle Lower Compartment Remarks 6 2 KΩ 2 5 C 180 KΩ 2 5 C 5 1 KΩ 2 0 C 56 KΩ 2 0 C 3 KΩ 1 5 C 33 KΩ 1 5 C 2 4 KΩ 1 0 C 18 KΩ 1 0 C 1 2 KΩ 0 5 C 12 KΩ 0 5 C 0 C 10 KΩ 0 C 620 Ω 0 5 C 8 2 KΩ 0 5 C 1 2 KΩ 1 0 C 5 6 KΩ 1...

Страница 23: ...ange Middlle Compartment RCT Lower Compartment RCB Modification Division Current No change 0 5 C up 1 C up 1 5 C up 2 C up 2 5 C up 3 C up 3 5 C up 4 C up 4 5 C up 5 C up 0 5 C down No change 0 5 C up 1 C up 1 5 C up 2 C up 2 5 C up 3 C up 3 5 C up 4 C up 4 5 C up 1 C down 0 5 C down No change 0 5 C up 1 C up 1 5 C up 2 C up 2 5 C up 3 C up 3 5 C up 4 C up 1 5 C down 1 C down 0 5 C down No change ...

Страница 24: ...T 0 C CUT CUT 0 C Upper compartment cut compensation Upper compartment temperature compensation value Middle compartment temperature compensation value Lower compartment temperature compensation value Too warm compensation Frozen Food The others 0 C When shipping from factory 0 C When shipping from factory 0 C When shipping from factory Too cold compensation Middle compartment cut compensation Low...

Страница 25: ...OM for LED control of the display PCB DC12V for driving the display PCB transmit receive circuits are required Poor communication occurs where continuing information change between the main MICOM of the main PCB and the MICOM for LED control of the display PCB is not done for more than 30 seconds 25 DISPLAYPCB MAIN PCB MAIN MICOM MICOM for LED Control DC 12V GND Transmit error status Receive notch...

Страница 26: ...er compartment sensor and the middle compartment sensor have no connector Measure resistance at both ends of No 6 7 of the CON5 for the RT sensor However measure resistance at both ends of the sensor after separating barrier assembly between the middle compartment and the lower compartment for the lower compartment sensor 26 Measuring Temperature C Upper Middle Lower sensors RT sensor Upper Middle...

Страница 27: ...3 4 PCB PARTS DIAGRAM AND LIST 3 4 1 PWB PCB ASSEMBLY MAIN 1 Parts diagram 27 6871JB1129 S ...

Страница 28: ... 2 Parts List 28 ...

Страница 29: ... 29 ...

Страница 30: ...3 4 2 PWB PCB ASSEMBLY DISPLAY STANDARD 1 Parts diagram 30 2 Parts List ...

Страница 31: ...3 5 PCB CIRCUIT DIAGRAM PCB CIRCUIT DIAGRAM MAY CHANGE DEPENDING ON SITUATION 3 5 1 PWB PCB ASSEMBLY MAIN CIRCUIT DIAGRAM LED MODULE TYPE 31 ...

Страница 32: ... 32 ...

Страница 33: ...3 5 2 PWB PCB ASSEMBLY DISPLAY CIRCUIT DIAGRAM 33 ...

Страница 34: ... 418A 281B 501K 410G 501A 281A 330B 332D 301B 418B 103C 184C 605A 404A 405C 405A 329A 105A 304A 332C 245A 501F 105B 401A 332A 619B 401B 410H 411A 316C 316B 404B 405C 405A 329B 331D 405B 331C 106A 104B 318A 317A 310A 323B 329C 420A 312A 319C 315A 315B 315C 315B 319A 309B 314A 307A 619A 319D 327B 316A 328A 308A 309A ...

Страница 35: ...153C 153B 203A 200A 206A 207A 201A 204C 202A 212G 157D 157C 157B 157A 150H 150F 150K 150J 150E 150G 150B 150F 150C 150D 150A 150E 150G 150B 150F 150C 150D 150A 150E 150G 152A 150B 150C 151A 151B 154A 154B 150F 150G 205G 205L 205M 205P 205L 205K 205Q 206B ...

Страница 36: ...u u GR J303UG 36 241B 604G 604E 252C 252A 253A 254A 252B 253C 253B 253C 254B 248B 604G 604E 241A 248A 160C 251A 253C 253B 160C 149B 149B 203C 200D 201C 203B 200C 149B 149B 201B ...

Страница 37: ...P No 3828JD8947C FEB 2008 Printed in Korea ...

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