LG GR-S352G Скачать руководство пользователя страница 33 | Manualshive

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The parts of refrigerator and the shape of each part are subject to change in different localities.

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Capacitors and fuse are optional parts.

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*

: optional parts.

8. EXPLODED VIEW

103B

*

604F

*

604E

103A

401A

282B

310A

308A

314A

307A

309A

312A

315A

318A

317A

323B

328A

329C

420A

319A

105A

315B

327A

304A

328B

319C

125L

*

282J

129A

281D

406B

106A

283B

281A

281B

106B

*

410G

*

410H

*

410J

501A

501F

411A

501K

120A

103C

109B

329D

409B

409C

158C

158F

315C

407A

301A

418A

#EV#

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Содержание GR-S352G

Страница 1: ...ERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL REFRIGERATOR SERVICE MANUAL http biz lgservice com Ref No GR S392GCA MODEL GR S392GCA GR S352GCA COLOR SUPER WHITE GR S392GTA TITANIUM GR S392GTCA GR S352GCA ...

Страница 2: ...he set 2 To prevent electric shock 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 ...

Страница 3: ...ration 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 th...

Страница 4: ...kg 63 60 COOLING SYSTEM Fan Cooling FREEZER Knob Dial REFRIGERATOR Micom Control Full Automatic Heater Defrost OUT CASE Coated Steel Sheet INNER CASE A B S INSULATION Polyurethane Foam FREEZER 1 EA REFRIGERATOR 2 EA VEGETABLE TRAY Drawer Type EGG TRAY 2 Pieces ICE TRAY 1 Piece 2 ICE BANK 1 Piece COMPRESSOR P T C Starting Type EVAPORATOR Fin Tube Type CONDENSER Wire Condenser REFRIGERANT R134a 135g...

Страница 5: ... or Steel REFRIGERATOR COMPARTMENT Deodorizer Option Chilled Compartment Refrigerator Temperature Electronic Control Lamp F I R Lamp Option Shelves Plastic or Steel or Tempered Glass Multi Flow Duct Distributes cold air to each part of refrigerator compartment Vegetable Drawer Used to keep fruits and vegetables etc fresh and crisp Bottle Guide Movable Rack Wine Rack Option if steel shelf You can u...

Страница 6: ... 3 THERMISTOR 1 Remove the Cover Lamp R by the use of type driver inserting in the low holes of the cover 2 Loose 2 screw 3 Pull the Control Box R 4 Disconnect the Housing of lead wire 5 Separate the INSU Multi Duct and Control Box R 6 Separate the Thermistor and Control Box R 7 Separate the Thermistor and Display PCB 3 4 FAN AND FAN MOTOR 1 Remove the freezer shelf 2 Separate the twist by pulling...

Страница 7: ...ting At the temperature of 77 C it stops the emission of TEMP from the Defrost Heater 1 Pull out the shroud F after removing the Grille Fan Figure 13 2 Separate the connectors connected with the Def Control ASM and replace the Def Control ASM after cutting the Tie Wrap Figure 14 3 6 REFRIGERATOR ROOM LAMP 1 Remove the cover lamp R by pulling with a type driver 2 Remove the lamp R by turning 3 7 CO...

Страница 8: ...Motor 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 res...

Страница 9: ...r 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 9 CONTACTING POINT COVER BIMETAL CONTACTING POINT H...

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: ...er or Whistone 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 22 Ω 30 115V 60Hz 6 8 Ω 30 240V 50Hz 33 Ω 30 127 220V 60Hz 22 Ω 30 The resistance value is 0 or several hundreds Ω The value is Check another electric components Replace OLP Check another electric components Replace PTC Figu...

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: ...ce is plugged in it is set to Medium Each time the button is pushed it is set to Medium Medium High High Low Medium Low Medium in order 2 When the power is initially applied or restored after a power failure it is automatically set to Medium 7 DESCRIPTION OF FUNCTION CIRCUIT OF MICOM 16 Temp Control Medium Medium Low Low Medium High High TEMP C 7 4 2 0 2 ROOM REFRIGERATOR ...

Страница 17: ...sting 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 7 1 4 CONTROL OF DOUBLE COOLING FAN IN THE REFRIGERATOR COMPARTMENT 1 To raise the refrigerating speed Fan Motor in the Refrigerator Compartment is operated when the door of freezer roo...

Страница 18: ...isplayed by the refrigerator temp indication LED on the display of the refrigerator while the remaining LEDs are off 18 R4 R3 R1 R2 NO Error Error Code Display Cause State of Operation with Error R1 R2 R3 R4 Comp Cooling fan Defrostingheater 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: ... LOAD DRIVE CIRCUIT 1 Load Drive Condition Check 21 Load Type Defrosting Heater Refrigerator Fan Lamp Measurement Location IC5 No 13 No 10 No 12 No 11 ON 1V or below Condition OFF 12V Comp Freezer Fan Motor ...

Страница 22: ...MICOM OPENING or SHORT state of each TEMPERATURE SENSOR are as follows 7 2 6 DOOR OPEN DETECTING CIRCUITS 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 MEASURING POINTS Freezer Refrigerator Door CLOSED OPEN IC1 Pin No 8 5 V 0 V ...

Страница 23: ... compensation resistance RCR1 is changed from 10K the current resistance to 18K the adjustment resistance the temperature of the refrigerator rises 1 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 ASSEMBLY AND PARTS LIST 7 5 1 MAIN PWB ASSEMBLY 28 ...

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

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

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

Страница 32: ... 32 REF TEMP CONTROL ...

Страница 33: ...re optional parts optional parts 8 EXPLODED VIEW 103B 604F 604E 103A 401A 282B 310A 308A 314A 307A 309A 312A 315A 318A 317A 323B 328A 329C 420A 319A 105A 315B 327A 304A 328B 319C 125L 282J 129A 281D 406B 106A 283B 281A 281B 106B 410G 410H 410J 501A 501F 411A 501K 120A 103C 109B 329D 409B 409C 158C 158F 315C 407A 301A 418A EV ...

Страница 34: ...03A 201A 231A 231A 231A 235A 149D 200A 230A 201A 201A 212G 233B 212G 233B 244A 244C 212C 212A 212A 212C 233B 244A 244C 243A 210A 154A 149C 149C 149C 136A 136B 151A 149C 136A 330B 329A 405A 405C 404A 140A 149B 332A 136D 149A 110B 125A 131A 136C 125J 125H 136B EV ...

Страница 35: ...D 241C 241A 205A 205A 233A 203A 231A 235A 149D 200A 230A 201A 212G 154A 149C 149C 149C 136A 136B 151A 149C 136A 330B 140A 149B 332A 136D 149A 110B 125A 131A 136C 125J 125H 136B 233B 329A 405A 405C 404A 212A 1SZZJA 109A 244A 1SZZJA 109A EV ...

Страница 36: ...P No 3828JD8625Y SEP 2004 Printed in Korea ...

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