LG GR-S552 Скачать руководство пользователя страница 4 | Manualshive

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ITEMS

SPECIFICATIONS

FREEZER

114

NET CAPACITY REFRIGERATOR

306

TOTAL

420

DIMENSIONS (mm)

755(W)

X

689(D)

X

1777(H)

NET WEIGHT (kg)

79

COOLING SYSTEM

Fan Cooling

TEMPERATURE CONTROL

Micom Control

Full Automatic

DEFROSTING SYSTEM

Heater Defrost

OUT CASE

Pre Coated Metal

INNER CASE

A B S

INSULATION

Polyurethane Foam

( l )

ITEMS

SPECIFICATIONS

FREEZER

1 EA

REFRIGERATOR

2 EA

VEGETABLE TRAY

Drawer Type

EGG TRAY

2 Pieces

ICE TRAY

2 Pieces (Plastic)

ICE BANK

1 Piece

COMPRESSOR

P.T.C Starting Type

EVAPORATOR

Fin Tube Type

CONDENSER

Wire Condenser

REFRIGERANT

R-134a (135g)

DEFROSTING DEVICE

HEATER

SHELF

1. SPECIFICATIONS

1-1 GR-S552

ITEMS

SPECIFICATIONS

FREEZER

126

NET CAPACITY REFRIGERATOR

334

TOTAL

460

DIMENSIONS (mm)

755(W)

X

719(D)

X

1777(H)

NET WEIGHT (kg)

81

COOLING SYSTEM

Fan Cooling

TEMPERATURE CONTROL

Micom Control

Full Automatic

DEFROSTING SYSTEM

Heater Defrost

OUT CASE

Pre Coated Metal

INNER CASE

A B S

INSULATION

Polyurethane Foam

( l )

ITEMS

SPECIFICATIONS

FREEZER

1 EA

REFRIGERATOR

2 EA

VEGETABLE TRAY

Drawer Type

EGG TRAY

2 Pieces

ICE TRAY

2 Pieces (Plastic)

ICE BANK

1 Piece

COMPRESSOR

P.T.C Starting Type

EVAPORATOR

Fin Tube Type

CONDENSER

Wire Condenser

REFRIGERANT

R-134a (135g)

DEFROSTING DEVICE

HEATER

SHELF

1-2 GR-S592

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Содержание GR-S552

Страница 1: ...CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL GR S552 GR S592 REFRIGERATOR SERVICE MANUAL http biz lgservice com ...

Страница 2: ...unplug prior to servicing 3 In case of testing with power on wear rubber gloves to prevent electric shock 4 If you use any appliances check regular current voltage and capacity 5 Don t touch metal products in cold freezer with wet hand It may cause frostbite 6 Prevent water flowing to electric elements in mechanical parts 7 When you stand up during observing the lower part with the upper door open...

Страница 3: ...operation is over add the quantity in grams of R 134a to the refrigerant system Remember that every system has an exact quantity of R 134a with a tolerance of 5 grams that can be added Figure 4 Before performing this operation if the vacuum pump and refilling cylinder are connected make sure that the valve placed between the vacuum pump and refilling tube are closed to keep the Freon for adding to...

Страница 4: ...e CONDENSER Wire Condenser REFRIGERANT R 134a 135g DEFROSTING DEVICE HEATER SHELF 1 SPECIFICATIONS 1 1 GR S552 ITEMS SPECIFICATIONS FREEZER 126 NET CAPACITY REFRIGERATOR 334 TOTAL 460 DIMENSIONS mm 755 W X719 D X1777 H NET WEIGHT kg 81 COOLING SYSTEM Fan Cooling TEMPERATURE CONTROL Micom Control Full Automatic DEFROSTING SYSTEM Heater Defrost OUT CASE Pre Coated Metal INNER CASE A B S INSULATION P...

Страница 5: ...Freezer Door Rack Freezer Temperature Control Dial Leveling Screw Vegetable Drawer Used to keep fruits and vegetables etc fresh and crisp Shelves Lamp Fresh Meat Base Cover FREEZER COMPARTMENT Lamp Shelf Twisting Ice Serve Option or General Type Ice Making Deodorizer REFRIGERATOR COMPARTMENT Refrigerator Temperature Electronic Control ...

Страница 6: ...WITCH 1 To remove the door switch pull out it with a type driver as shown in figure 9 2 Disconnect the lead wire from the switch 3 3 FAN AND FAN MOTOR 1 Remove the freezer shelf 2 Remove the Cover Lamp F and Case Lamp by loosening 1 screw fixed to ceiling of Inner Case 3 Remove the Grille by pulling it out 4 Pull out the Shroud and remove the Fan Motor Assy by loosening 2 screws 5 Pull out the fan...

Страница 7: ...fter inserting finger into the inside hole as shown in figure 16 3 Remove the lamp by turning it counterclockwise 4 Assemble in reverse order of disassembly Replacement bulb must be the same specication as original 3 5 2 Refrigerator room lamp 1 Unplug the power cord from the outlet 2 Remove refrigerator shelves 3 Remove the room lamp lid by taking down while pulling forward with your hands as sho...

Страница 8: ...or For normal operation of single phase induction motor in the starting operation flows in both main coil and sub coil After the starting is over the current is cut off in subcoil The proper features of PTC play the above all roles So PTC is used as a starting device of motor 4 2 3 PTC Applied Circuit Diagram According to Starting Method of Motor 4 2 4 Motor Restarting and PTC Cooling 1 For restar...

Страница 9: ...tects Motor by cutting off current which flows to Compressor Motor 4 3 2 Role of OLP 1 OLP is attached to Hermetic Compressor used to Refrigerator and Show Case and prevents Motor Coil from being started in the Compressor 2 Do not turn the Adjust Screw of OLP in any way for normal operation of OLP Composition and connection Diagram of OLP 5 CIRCUIT DIAGRAM CONTACTING POINT COVER BIMETAL CONTACTING...

Страница 10: ...dvise the customer to use a regular Trans Replace Compressor OLP works within 30 sec in forcible OLP operation by turning instant power on and off Components start in the voltage of Rating Voltage 10 below Applied voltage isn t in the range of Rating Voltage 10 Check the resistance among M C S C and M S in Motor Compressor Check the resistance of two terminals in PTC Starter Check if applying a re...

Страница 11: ...istone Bridge Figure 22 Separate the OLP from Compressor and check resistance value between two terminals of OLP with a Tester Figure 23 Observation value is 220V 50Hz 47Ω 30 220 240V 50Hz 47Ω 30 110 115V 60Hz 6 8Ω 30 220V 60Hz 47Ω 30 127V 60Hz 22Ω 30 The resistance value is 0 or several hundreds Ω The value is Check another electric components Replace OLP Check another electric components Replace...

Страница 12: ...ressor Replace the compressor Replace each component Raise the voltage Replace each component Cause Check if current flows to starting devices Check current flowing in sub coil of Compressor Check capacity of OLP The items described above are normal Cooling ability is poor Fan motor doesn t run Much frost are sticked to the EVAPORATOR Poor contacting Coil is shorted Shorted Replace each component ...

Страница 13: ...ten or check if the door is closed up it firmly Dew forms Check if ambient temperature and humidity Wipe dew with a dry cloth This happening in the Out Case of surroumcling air are high is solved in low temperature and humidity naturally Is the gap in the door packed Fill up the gap Abnormal Is the set positioned in a firm and even place Adjust the Adjust Screw and position noise generates in the ...

Страница 14: ...re Normal cooling is possible don t get cold formed when injecting Refrigerant at all of regular amount PARTIAL Freeze room and Flowing sound of Refrigerant A little high Normal discharging of CLOG Refrigerator is heard and frost forms more than refrigerant don t get cold in inlet only ambient The capillary tube is faulty normally temperature WHOLE Freezer and Flowing sound of Refrigerant Equal to...

Страница 15: ...ge without fail 1 gauge of charging M C vacuum Perform vacuum operation until a proper 1 degree is within 1 Torr vacuum degree is built up 2 If the vacuum degree of the cycle inside is If a proper vacuum degree isn t built up 2 10 Torr below for low pressure and 20 Torr check the leakage from 2 for high pressure it says no vacuum the Cycle Pipe line part and 2 leakage state Quick Coupler Connectin...

Страница 16: ...ooling speed and load corresponding speed 2 High speed rpm is only used for the initial power application and load corresponding operation But standard rpm is used in the general working condition 3 When the door of freezer room or refrigerator room is opened the fan motor is stoped immediately then when the door is closed the fan motor is operated 7 1 3 CONTROL OF DOUBLE COOLING FAN IN THE REFRIG...

Страница 17: ... circuited wire the defrosting will not be performed 7 1 5 SEQUENTIAL OPERATION OF ELECTRIC COMPONENTS The electric components such as the comp defrosting heater and cooling fan start sequentially to avoid the noise and damage to the part which may result from the simultaneous start of various components on turning the power on or after the completion of a test Condition of Operation Operating Seq...

Страница 18: ...isplayed by the refrigerator temp indication LED on the display of the refrigerator while the remaining LEDs are off 18 R1 R2 R3 R4 NO Error Error Code Display Cause State of Operation with Error R1 R2 R3 R4 Comp Coolingfan Defrosting heater ON OFF 1 2 3 Faulty refrigerator R sensor on the control box of the refrigerator Faultydefrostingsensor Defrosting failure Cut or short circuited wire of refr...

Страница 19: ...MICOM and IC 5Vdc The voltage for each part is as follows VA1 is a part for preventing the over voltage and noise When 385V or higher power is applied the inside elements are short circuited and broken resulting in the blowout of the fuse in order to protect the elements of the secondary part of the TRANS 19 PART VA 1 CE 2 CE3 VOLTAGE 220 Vac 12 Vdc 5 Vdc ...

Страница 20: ... is changed 7 2 3 RESET CIRCUIT The RESET circuit is for allowing all the functions to start at the initial conditions by initializing various parts including the RAM inside the MICOM IC1 when the power is initially supplied or the power supply to the MICOM is restored after a momentary power failure For the initial 10ms of power supply LOW voltage is applied to the MICOM RESET terminal During a n...

Страница 21: ...T 1 Load Drive Condition Check 21 Load Type Measurement Location IC5 No 16 No 13 No 15 No 14 No 12 ON 1V or below Condition OFF 12V Comp Defrosting Heater Freezer Fan Motor High RPM Fan Motor R Fan Standard RPM Double Cooling ...

Страница 22: ... MICOM OPENING or SHORT state of each TEMPERATURE SENSOR are as follows 7 2 6 DOOR OPEN DETECTION CIRCUIT 22 SENSOR CHECK POINT NORMAL 30 C 50 C SHORT CIRCUITED OPEN Refrigerator Sensor POINT Voltage 0 5 V 4 5 V 0 V 5 V Defrosting Sensor POINT Voltage A B Closed 0V Open 5V Measurement Location Freezer Refrigerator Door Pin No 13 ...

Страница 23: ...compensation resistance RCR1 is changed from 10K the current resistance to 18K the adjustment resistance the temperature of the refrigerator rises 1 0 C Refrigerator Resistance Temperature Remark RCR1 Compensation 180 KΩ 2 5 C Compensation by 56 KΩ 2 0 C raising the 33 KΩ 1 5 C temperature 18 KΩ 1 0 C 12 KΩ 0 5 C 10 KΩ 0 C Standard Temperature 8 2 KΩ 0 5 C Compensation by 5 6 KΩ 1 0 C lowering the...

Страница 24: ... DISPLAY LIGHT ON CIRCUIT The circuit shown above is to determine whether a function control key on the operation display is pushed and to turn on the corresponding function indication LED The drive type is the scan type 24 ...

Страница 25: ...emperature This postponing is necessary because of perceiving speed Measure the F SENSOR SUPER FROST SENSOR R1 R2 SENSOR after disconnect CON5 of PWB ASSY MAIN TEMPERATURE SENSOR RESISTANCE OF REFRIGERATOR DEFROST SENSOR 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 50 C 4 3 KΩ ...

Страница 26: ...OMPRESSOR lock or Replace COMPRESSOR blocked OLP PTC is poor Replace OLP PTC COMPRESSOR RELAY is Replace MAIN PWB RY1 poor THE CONNECTING WIRE Certify the black wire of MAIN is poor PWB CONNECTOR CON1 2 Whether refrigerant leaks or Measure the amount of frost Refrigerant leakage Remedy the leaking part leaks or not sticking on EVA and the and reaching Refrigerant surface temperature of condenser p...

Страница 27: ...G is poor DEFROSTING is NO DEFROSTING 1 HEATER emit heat Check the MAIN PCB HEATER disconnection Replace HEATER poor TEMPERATURE FUSE Replace TEMPERATURE disconnection FUSE Connection is poor Certify EVA connection and wire of MAIN PWB CONNECTOR CON1 DEF SENSOR is poor Replace DEF SENSOR HEATER RELAY is poor Replace RY4 of MAIN PWB 2 DRAIN PIPE blocking Certify DRAIN PIPE DRAIN PIPE blocking Remov...

Страница 28: ...7 5 MAIN PWB ASS Y AND PARTS LIST 7 5 1 MAIN PWB ASS Y 28 1 R B52DZ R B55DZ ...

Страница 29: ...7 5 2 REPLACEMENT PARTS LIST 29 ...

Страница 30: ...7 5 3 PWB ASS Y DISPLAY AND PARTS LIST 30 ...

Страница 31: ...7 6 PWB DIAGRAM 31 ...

Страница 32: ... 32 ...

Страница 33: ...18A 317A 304A 323B 328A 329C 420A 319A 105A 315B 327A 315C 319C 106A 283B 120A 158F 329D 409B 158C 410J 158A 158B 409A 401A 301A 418A 406B 103B 103A 410G 410H 501A 501F 411A 501K 324A 129A The parts of refrigerator and the shape of each part are subject to change in different localities optional parts ...

Страница 34: ...140A 149A 241A 205A or 205A or 241D 241C 235A 205A 205A 131A 405C 404A 405C 405A 131C 233A 230A 203A 200A 201A 136A 136B 136N 136P 136Q 136R 241A 210A 210B 243A 243B 231A 149B 125A 125A 131A 125A 125H 149A 234B 149B 212G 329A 212C 212A 244A 244C 330B 332A ...

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