LG MP-3297IXC Скачать руководство пользователя страница 16 | Manualshive

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OPERATING SEQUENCE

The following is a description of component functions
during oven operation.

1. SETTING THE CLOCK

2. MICROWAVE COOKING

3. GRILL COOKING

4. CONVECTION PREHEAT

5. CONVECTION COOKING

6. GRILL COMBI COOKING

8. CONVECTION COMBI COOKING

7. DEFROST

8. AUTO COOK

9. STEAM COOK

10. CHILD LOCK

This oven has a CHILD LOCK feature.

To Set CHILD LOCK

To Cancel CHILD LOCK

11. QUICK START

4-2

LGE Internal Use Only

Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes

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Содержание MP-3297IXC

Страница 1: ...SolarDOM SERVICE MANUAL MODEL MP 3297IXC CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL Website http biz lgservice com P NO MFL34215507 Juary 2007 Printed in Korea Internal Use Only ...

Страница 2: ...DOOR PARTS CONTROL PANEL PARTS BASE PLATE PARTS OVEN CAVITY PARTS LATCH BOARD PARTS INTERIOR PARTS 6 1 EXPLODED VIEW INTRODUCTION EV MODEL ...

Страница 3: ... 6 2 13581A 13552E 13213E 14026L 14026R 14970A 14970A 14970C 14890A 13551E 13650A WTP005 WPZ016 WPZ016 WMT015 13352A DOOR PARTS EV ...

Страница 4: ... 6 3 24930D 268711 24810P WTT028 24930D 24930W 268771 13552E CONTROL PANEL PARTS EV ...

Страница 5: ...3112U WTT022 WTT021 WTT028 WTT021 35300S WTT011 33052M 340511 55893A WTT021 647781 948501 65238A 63302E 56322A WNZ015 WTP013 548101 349861 33701A 333902 36549S 33550C 33550C WTC008 35026S 333901 33550S 33651A OVEN CAVITY PARTS EV ...

Страница 6: ... 6 5 WSZ085 466001 43501L 466001 466003 44510A 43500L 43500R WSZ085 43501R LATCH BOARD PARTS EV ...

Страница 7: ...5012B 34930W 50CZZH 54810C 56851D WSZ002 56411A 56170E WSZ002 56901A WTT021 WSZ232 WSZ002 WTT021 WTT021 33808A WSZ002 WTP002 WTT028 WTT028 56930M 36549V 34810E 35012A 56324A 535041 55900C 550121 WTT021 WTT021 WTT021 WTT021 WNZ015 55810H 56549B 54810U 55262E WTT028 WTT021 466003 568771 INTERIOR PARTS I EV ...

Страница 8: ... WTT028 28 1TTL0402818VIS TH 2 4MM 12MM M WTT028 29 1TTL0402818VIS TH 2 4MM 12MM M WTT028 30 1TTL0402818VIS TH 2 4MM 12MM M WTT028 31 3390W1A040 Tray Resin PRESS TEFLON PTFE 333901 32 3501W1A028 Holder Assembly Locker LGECW MP9297MLC P 43501R 33 3501W1A029 Holder Assembly Locker LGECW MP9297MLC P 43501L 34 3550W1A130 COVER LAMP SGCC NATURAL MP 1 53550L 35 3550W1A293 COVER STEAM STS 304 2B NATURAL ...

Страница 9: ...Assembly AIR DUCT ASSEMBLY 55262E 84 AGM3425540 Parts Assembly HVT RUBBER MP929 56170E 85 AGM3425560 Parts Assembly VENT MOUNT CUSH 34810E 86 AGM3425590 Parts Assembly BASE PLATE CUSHIO 63302E 87 AGM3425600 Parts Assembly INSULATOR UPPER L 55013E 88 AGM3688280 Parts Assembly PCB Assembly Main 26871E 89 AHT30191402Shelf Assembly NEW BEETLE SHELF A 33701A 90 EAD34960002Harness Single LG PART NUMBER ...

Страница 10: ...L 119 MEV3032600 Insulator PRESS SECD T0 8 SEC 35012B 120 MEV3032700 Insulator CUTTING GLASS FIBE 550121 121 MFL34213706Manual Owners PRINTING MP9297ML MFL552 122 MFL34215507Manual Service PRINTING MC9291ML 02 123 MGJ38639302Plate Bridge CUTTING MSWR MSW 53300B 124 MGW3032780Reflector PRESS STS 430 4 T0 33034A 125 MHY3251650 Spring Coil EXTRUSION STS 304W14970C 126 MJH30327401Supporter PCB MOLD PP...

Страница 11: ...ON 4 4 SERVICE INFORMATION 5 1 TOOLS AND MEASURING INSTRUMENTS 5 1 MICROWAVE LEAKAGE TEST 5 1 MEASUREMENT OF MICROWAVE POWER OUTPUT 5 3 DISASSEMBLY AND ADJUSTMENT 5 3 INTERLOCK CONTINUITY TEST 5 9 COMPONENT TEST PROCEDURE 5 10 TROUBLE SHOOTING 5 15 EXPLODED VIEW 6 1 REPLACEMENT PARTS LIST 7 1 CONTENTS LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and ...

Страница 12: ...ower IEC60705 2450 MHz 2M246 0 90 min 527 W x 366 H x 472 D mm 440 W x 235 H x 310 D mm 23 kg 28 kg 1 Microwave Power level 4 Grill Combi max 700W 450W 300W 180W 90W Grill MW 90W 180W 300W 450W 2 GRILL 5 Convection Combi Upper Sheath Heater 1350W Upper Sheath Heater 1350W Upper Halogen Heater 450W Upper Halogen Heater 450W 3 Convection 40 C 100 230 C 6 Convection Combi Back Sheath Heater 750W Conv...

Страница 13: ...te the magnetron unless it is properly installed Be sure that the magnetron gasket is properly installed around the dome of the tube whenever installing the magnetron 2 1 CAUTIONS Unlike other appliances the microwave oven is high voltage and high current equipment Though it is free from danger in ordinary use extreme care should be taken during repair THE OVEN IS TO BE SERVICED ONLY BY PROPERLY Q...

Страница 14: ...ction and Combination mode This glass is very hot during heater operating 9 Do not operate the oven at microwave and combination mode with Grill rack placed in the cavity when the oven is empty EARTHING INSTRUCTIONS This oven is designed to be used in a fully earthed condition It is imperative therefore to make sure it is properly earthed before servicing WARNING THIS APPLIANCE MUST BE EARTHED IMP...

Страница 15: ...chef categories 4 Function Select You can select cooking categories 5 Control You can set cooking times temperature weight and cooking categories While cooking with auto and manual function you can lengthen or shorten the cooking time at any point by pressing the button except defrost mode 6 Enter Start Quick Start In order to start cooking which is selected press button one time The quick start f...

Страница 16: ...NG 4 CONVECTION PREHEAT 5 CONVECTION COOKING 6 GRILL COMBI COOKING 8 CONVECTION COMBI COOKING 7 DEFROST 8 AUTO COOK 9 STEAM COOK 10 CHILD LOCK This oven has a CHILD LOCK feature To Set CHILD LOCK To Cancel CHILD LOCK 11 QUICK START 4 2 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Страница 17: ...SCHEMATIC DIAGRAM 4 3 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Страница 18: ...THE OVEN IS SET AT ANY LEVEL EXCEPT MAXIMUM The micom controller controls the ON OFF time of relay 4 by the applied signal to vary the average output power of oven as POWER LEVEL refer to page 1 1 One complete cycle of relay 4 is 32 seconds WHEN THE DOOR IS OPENED DURING COOKING Both the primary switch and relay 4 are cut off primary winding voltage of the high voltage transformer ON OFF of relay ...

Страница 19: ... of the turntable Set the energy leakage monitor to 2450 MHz and use it following the manufacturer s recommended test procedure to assure correct result When measuring the leakage always use the 2 inch 5cm spacer supplied with the probe Operate the oven at its maximum output Measure the microwave radiation using and electromagnetic radiation monitor by holding the probe perpendicular to the surfac...

Страница 20: ...5 cm sec along the shaded area otherwise a false reading may result The test probe must be held with the grip portion of the handle A false reading may result if the operator s hand is between the handle and the probe When testing near a corner of the door keep the probe perpendicular to the surface making sure the probe horizontally along the oven surface this may possibly cause probe damage RECO...

Страница 21: ...r temperature and the ambient temperature is 5 K The microwave power output P in watts is calculated from the following formula 4187 X T 0 55 X T2 T0 X M T T2 Temperature after heating T0 Temperature of bowl M Weight of bowl is measured while the microwave generator is operating at full power Magnetron filament heat up time is not included The water is stirred to equalize temperature throughout th...

Страница 22: ...door surface and oven frame assembly If the door assembly is not mounted properly microwaves may leak from the clearance between the door and the oven D MAIN PCB ASSEMBLY 1 Remove choke cover for door assemply 2 Remove the two screws holding PCB bracket 3 Remove PCB bracket 4 Disconnect two leadwires from Main PCB 5 Remove the seven screws holding Main PCB 6 Remove the Main PCB from door assembly ...

Страница 23: ...ave energy must be below the limit of 5 mW cm2 With a 275 ml water load Make sure that gasket is rigidly attached to the magnetron To prevent microwave leakage tighten the mounting screws properly making sure there is no gap between the waveguide and the magnetron G FAN MOTOR ASSEMBLY REMOVAL 1 Remove rear cover assembly 2 Remove the three screws holding the fan motor assembly 3 Remove the fan mot...

Страница 24: ... 8 Remove the convection fan 9 Remove the two screws holding the convection motor 10 Remove the convection motor 11 Remove the three screws holding heater sreeket 12 Remove thhe convection heater from bracket J THERMISTOR REMOVAL 1 Disconnect the leadwire from the reley PCB CN3 2 Remove the nut holding thermisters 3 Remove the screws of the thermister 5 6 Convection Fan Nut Insulator B Assembly Co...

Страница 25: ...s closed Tighten the mounting screw L RELAY PCB ASSEMBLY 1 Disconnect the leadwire from relay PCB 2 Remove the two screws holding relay PCB assembly 3 Remove the relay PCB assembly from cavity assembly 4 Remove two screws holding relay PCB 5 Remove the relay PCB from relay PCB support M UPPER SHEATH HEATER REMOVAL 1 Remove three hex nuts holding the sheath heater 2 Remove gasket and bracket holdin...

Страница 26: ...tor 4 Remove the damper motor 5 Remove the screw holding damper switch 6 Remove the damper switch P STIRRER FAN MOTOR REMOVAL 1 Remove the two screws holding stirrer fan motor 2 Remove the stirrer fan motor Q LAMP REMOVAL 1 Disconnect the leadwire from lamp 2 Remove the lamp assembly fan insulator U 3 Remove the lamp from lamp assembly 5 8 Reflecter Bracket Halogen Heater Stirrer Fan Motor Lamp In...

Страница 27: ...secondary switch operation is abnormal make the necessary adjustment or replace the switch only with the same type of switch C MONITOR SWITCH TEST Disconnect the wire lead from the monitor switch Connect the ohmmeter leads to the common COM and normally closed NC terminals of the switch The meter should indicate closed circuit in the door open condition When the door is closed meter should indicat...

Страница 28: ...ETRON Wire leads removed 1 Measure the resistance Ohm meter scale Rx1 and Rx100 Primary winding Secondary winding Filament winding 2 Measure the resistance Ohm meter scale Rx1000 Primary winding to ground Filament winding to ground 1 Measure the resistance Ohm meter scale Rx1 Filament terminal 2 Measure the resistance Ohm meter scale Rx1000 Filament to chassis Approx 2 5 ohm Approx 190 ohm Less th...

Страница 29: ...er scale Rx10000 Measure the continuity Reverse Ohm meter scale Rx10000 Normal Momentarily indicates several ohms and then gradually returns to infinite Normal Infinite Normal Continuity Abnormal Infinite Normal Infinite Abnormal Continuity NOTE When testing the magnetron be sure to install the magnetron gasket in the correct position and be sure that the gasket is in good condition Antenna Gasket...

Страница 30: ...bnormal HEATER ELEMENT Wire leads removed Measure the resistance Multi meter scale Rx1 Measure the resistance with 500V 100M ohm insulation resistance meter NOTE Make sure heater is fully cooled when tested Normal Upper sheath heater Approx 37 ohm 230V 1350W Back sheath heater Approx 77 ohm 230V 750W Upper Halogen heater Approx 15 ohm 230V 450W at 20 30 C MAGNETRON and OVEN THERMOSTAT OVEN Thermos...

Страница 31: ... Microwave Relay 8 Oven lamp Relay 10 Damper Motor FAN MOTOR Wire leads removed STIRRER MOTOR Wire leads removed Measure the resistance Ohm meter scale R x 1 Check for P C B connector Measure the resistance Ohm meter scale R x 1000 Normal Approx 60 ohm Abnormal Infinite or several ohm Normal Approx 10 20 kohm Abnormal Infinite or several ohm 1 3 4 5 7 9 Relay 1 2 3 4 5 6 7 8 10 11 Cooking Start OF...

Страница 32: ...signment of the respective pads on the key board is as shown left figures NOTE A MICROWAVE ENERGY LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR ANY REASON MAKE SURE THE WIRE LEADS ARE CORRECT POSITION WHEN REMOVING THE WIRE LEAD FROM THE PARTS BE SURE TO GRASP THE CONNECTOR NOT THE WIRES 1 2 3 4 5 6 7 8 9 10 18 1 2 3 4 5 6 7 8 9 10 18 P C B Main P C B LGE Internal Use Only Co...

Страница 33: ...in your body CONDITION The oven does not work Inserting many plug into one plug outlet and using them at the same time causes overloading The oven plug is not inserted tightly Output power is too low Low AC input voltage Food temperature is too low Using metallic ware and allowing it to touch the oven wall Sparks occurring Inconsistent intensity of microwave by their characteristics 1 Wrap the thi...

Страница 34: ...E 1 The following visual conditions indicate a probable defective control circuit 1 Incomplete segments Segment missing Partial segment missing Digit flickering NOTE Slight flickering is normal 2 Colon does not turn on or blink 3 A distinct change in the brightness of one or more numbers in display 4 One or more digits in the display are not lighting 5 Display does not count down with time blinkin...

Страница 35: ...gnetron thermostat No continuity 1 Fuse blows Continuity Malfunction of the monitor switch Replace primary and monitor switches Check continuity of monitor switch with door closed Check continuity of primary switch with door opened No continuity Disconnect one side of the wire lead connected from transformer to the high voltage capacitor and operate the unit No continuity Continuity Shorted contac...

Страница 36: ...ut is low Lower than 90 of rating voltage Normal Decrease in power source voltage with load Suggest customer contact local electric power utility co or qualified electrician Check the power source voltage Disconnect the wire leads from relay 7 and check on and off time with multitester Abnormal Normal Abnormal Defective magnetron Replace magnetron Defective P C B assembly Replace P C B assembly Me...

Страница 37: ...e high voltage Diode Replace high voltage Diode Check H V diode normal Abnormal Defective magnetron Replace magnetron Check Magnetron normal TROUBLE 5 No microwave oscillation even though oven lamp and fan motor run Display operates properly CONDITION CHECK RESULT CAUSE REMEDY Output is full when you set lower power level Abnormal Defective P C B assembly Replace P C B assembly Disconnect the wire...

Страница 38: ...n of the heater Replace Heater Abnormal Malfunction of the thermostat and relay 4 5 6 Replace Thermostat and relay 4 5 6 No continuity Open or loosen Replace or connect tightly Wire connection CONDITION CHECK RESULT CAUSE REMEDY No operation of All Keys No continuity continuity Defective Secondary switch And secondary switch Connector Replace Secondary switch And secondary Switch wire connector Ch...

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