LG SolarDOM MP-9482S Скачать руководство пользователя страница 30 | Manualshive

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INTERIOR PARTS

CONTROL PANEL PARTS

DOOR PARTS

LATCH BOARD PARTS

BASE PLATE PARTS

OVEN CAVITY PARTS

6-1

EXPLODED VIEW

INTRODUCTION

#EV#

MODEL: MP-9482S

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Содержание SolarDOM MP-9482S

Страница 1: ...HTOVEN SolarDOM SERVICE MANUAL MODEL MP 9482S CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL Website http biz lgservice com P NO 3828W5S2190 July 2002 Printed in Korea 삼 흥 정 판 ...

Страница 2: ...r and other damage 4 damage to or loosening of hinges and latches 5 evidence of dropping or abuse C Before turning on microwave power for any service test or inspection within the microwave generating compartments check the magnetron wave guide or transmission line and cavity for proper alignment integrity and connections D Any defective or misadjusted components in the interlock monitor door seal...

Страница 3: ...SCRIPTION 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 UPPER LOWER HEATER 5 7 INTERLOCK CONTINUITY TEST 5 8 COMPONENT TEST PROCEDURE 5 9 TROUBLE SHOOTING 5 14 EXPLODED VIEW 6 1 REPLACEMENT PARTS LIST 7 1 SCHEMATIC DIAGRAM OF P C B 8 1 PRINTED CIRCUIT BOARD 8 2 P C B PARTS LIST 9 1...

Страница 4: ...ht Shipping weight Control Complement Nameplate Location Accessories SPECIFICATIONS Front Plate 1 Microwave Power level MAX 900W 600W 360W 180W 90W 2 GRILL 5 SPEED AUTO COOK 3 Convection 40 C 100 250 C 4 SPEED COMBI Category Grill 1 Grill 2 Grill 3 Display gr 1 gr 2 gr 3 Heater operating Upper heater 2000W Upper heater 1100W Lower heater 700W Display Co 1 Co 2 Co 3 Co 4 Co 5 Heater Microwave power...

Страница 5: ...tron be assembled to the waveguide and cavity Never operate 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 du...

Страница 6: ...t glass during or after cooking of the Grill and convection 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 befor...

Страница 7: ...nd manual function you can lengthen or shorten the cooking time at any point by turning the dial knob except defrost mode 9 Defrost You can select the food type and the weight of the food 10 Favorite The cooking program can be stored in the memory of your oven up to 9 modes FA 1 FA 9 11 Clock You can set the time of day 12 Stop Clear You can stop over and clear all entries except time of day Press...

Страница 8: ...2 FAVORITE MEMORY COOK Stop Clear Start Favorite Any mode Favorite FA 1 Stop Clear Turn Dial Desired defrost category Food weight Stop Clear Function Convection Turn Dial Desired convection temp 40ûC 100ûC 250ûC Enter Enter Start To set Favorite FA 1 To cook Stop Clear Function Combi 4 Turn Dial Desired power level Desired power level Function MWO Function Defrost Function Speed cook Desired cooki...

Страница 9: ...SCHEMATIC DIAGRAM 4 3 ...

Страница 10: ...e negative 4 000 Volts DC is applied to the filament of the magnetron WHEN 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 o...

Страница 11: ...s graduated to 600 cc and place the beaker on the center of the turntable Set the energy leakage monitor to 2 450 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...

Страница 12: ...e test probe must be removed no faster than 1 inch sec 2 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 t...

Страница 13: ...rowave power output P in watts is calculated from the following formula P 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 the vessel prior to measuring the final water temperature Stirring devices and measuring instruments are selected in order to minimize addition or remova...

Страница 14: ...nsulator U F AIR GUIDE ASSEMBLY REMOVAL 1 Remove the screw on the Bracket upper and lift out the Bracket upper 2 Remove the mounting screw from magnetron upper chamber and front plate G MAGNETRON REMOVAL 1 Remove controller assembly Bracket upper and air guide from upper 2 Disconnect the leadwire from the high voltage choke filter transformer and Magnetron 3 Carefully remove the mounting screws ho...

Страница 15: ...MOVING THE TURNTABLE MOTOR 1 Remove the metal tray 2 Remove the turntable shaft VERY CAREFULLY 3 Lay the unit down on its back 4 Remove the turntable motor cover The turntable base cover is easily removed by pinching the six parts with a wire cutting 5 Disconnect the leadwire from the turntable motor terminals 6 Remove the screw securing the turntable motor to the oven cavity Ass y 7 After repairi...

Страница 16: ... the control panel 5 Disconnect the flat cable from the PCB SUB ASS Y and take off the PCB SUB ASS Y M INTERLOCK SYSTEM 1 INTERLOCK MECHANISM The door lock mechanism is a device which has been specially designed to eliminate completely microwave activity when the door is opened during cooking and thus to prevent the danger resulting from the microwave leakage 2 MOUNTING OF THE PRIMARY MONITOR SECO...

Страница 17: ... support F B to reflector 8 Remove the heater support F B of reflector 9 Disconnect the leadwire from ceramic heater 10 Remove the ceramic heater and halogen heater O LOWER HEATER REMOVAL 1 Disconnect the leadwire from the sheath heater 2 Remove the base plate from cavity 3 Remove the nuts from the oven cavity of the side 4 Remove the Gasket Ring and Heater Bracket 5 Remove the sheath heater in th...

Страница 18: ... closed meter should indicate an closed circuit When the 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 op...

Страница 19: ...ESULTS HIGH VOLTAGE TRANSFORMER Wire leads removed MAGNETRON 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 Fi...

Страница 20: ...0 Terminal to case Measure the continuity Forward Ohm meter 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...

Страница 21: ...ch and the fuse at the same time Replace just the fuse if the switches operate normally NOTE Make sure heater is fully cooled when tested Measure the resistance Multi meter scale Rx1 Normal Upper sheath heater Approx 47 ohm 230V 1100W Lower sheath heater Approx 74 ohm 230V 700W Upper Ceramic heater Approx 27 ohm 120V 500W Upper Halogen heater Approx 2 7 ohm 120V 500W at 20 30o C Normal more than 0...

Страница 22: ...Wire leads removed TURNTABLE MOTOR Wire leads removed Check for P C B connector Measure the resistance Ohm meter scale R x 1 Measure the resistance Ohm meter scale R x 1000 Normal Approx 1 6 ohm Abnormal Infinite or several ohm Normal Approx 10 20 kohm Abnormal Infinite or several ohm NOTE A MICROWAVE LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR ANY REASON MAKE SURE THE WIRE...

Страница 23: ...ng an appropriate pad on key board The contacts assignment 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 5 13 1 2 3 4 5 6 7 8 9 10 18 1 2 3 4 5 ...

Страница 24: ...ng on this panel to discharge any static charge built up 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 inten...

Страница 25: ...finished 10 Beep sound is not heard when correct key is touched 5 15 TROUBLE 1 The following visual conditions indicate a probable defective control circuit CONDITION CHECK RESULT CAUSE REMEDY 1 No input can be programmed Continuity No continuity Defective PCB assembly Loose connection Replace PCB assembly Connect them tightly Check the conn ection between key assembly and PCB assembly 2 Some inpu...

Страница 26: ...y switch with door opened Disconnect one side of the wire lead connected from transformer to the high voltage capacitor and operate the unit Replace fuse TROUBLE 2 Oven does not operate at all Display window does not display any figures and no input is accepted NOTE All these switches must be replaced at the same time Refer to page 5 6 5 8 2 Fuse does not blow No continuity No continuity Replace p...

Страница 27: ...ty of secondary switch with door closed Check fan motor c motor Check oven lamp turntable motor Abnormal Abnormal Normal Defective fan motor c motor Defective fan motor c motor Replace fan motor c motor Replace fan motor c motor Loose connection Connection then tightly CONDITION CHECK RESULT CAUSE REMEDY Output is low Lower than 90 of rating voltage Normal Normal Abnormal Abnormal Measure the outp...

Страница 28: ...tage transformer and H V Fuse Replace high voltage transformer and H V Fuse Check H V transformer and H V Fuse normal normal Abnormal Defective high voltage Diode Replace high voltage Diode Check H V diode Abnormal Defective high voltage capacitor Replace high voltage capacitor Check H V capacitor Abnormal Defective magnetron Replace magnetron Check Magnetron TROUBLE 5 No microwave oscillation eve...

Страница 29: ... Abnormal Malfunction of the thermostat and relay 5 6 7 Malfunction of the heater Replace Replace TROUBLE 6 Oven does not cook properly when programmed for the set power level Operates properly on HIGH CONDITION CHECK RESULT CAUSE REMEDY Output is full when you set lower power level Abnormal Disconnect the wire leads from relay 4 and check continuity relay 4 Operate the unit Defective P C B assemb...

Страница 30: ...INTERIOR PARTS CONTROL PANEL PARTS DOOR PARTS LATCH BOARD PARTS BASE PLATE PARTS OVEN CAVITY PARTS 6 1 EXPLODED VIEW INTRODUCTION EV MODEL MP 9482S ...

Страница 31: ...6 2 13581A 14890E 13720D 13213E 13552A 13650A WTP002 WTT028 WTT028 14970A 140262 WPZ016 14970A 140261 WPZ016 DOOR PARTS EV ...

Страница 32: ...rt Supplied in Kit Must Change Simultaneausly Original P No 6871W1S074A 6871W1S260J 6871W1S112A 24781M 268711 WTT028 WTP004 WTP004 249401 24402A 250201 268712 250201 268713 243501 23551A WTP004 24810P 24980A WTT028 CONTROL PANEL PARTS EV ...

Страница 33: ...inal replace with Part Supplied in Kit Tray Shaft Before After 4370W1A004B 33112U WTP013 36549S 63302A WNZ015 35300S WTT028 WTT010 WTT021 63303A WTT028 647781 WTT028 647781 54790A 368771 35026G 35026C 33052M 34810H 343501 WNZ015 OVEN CAVITY PARTS EV ...

Страница 34: ...6 5 466001 43501L 43500L 44510A 466003 466001 43500R 43501R WSZ085 WSZ085 LATCH BOARD PARTS EV ...

Страница 35: ...6 6 350122 56201B 56324A WSZ002 53504A 55264A WTT028 WTT028 WSZ209 552652 53550L 56912B WTT028 34890C 35300E WSZ209 552651 WTT021 WTT021 INTERIOR PARTS I EV ...

Страница 36: ...V 56411A WSZ002 56549F WTT021 56170D 350121 33660A WNH002 56930M 54810C 50CZZH 50FZZA 56201A 56851D 56901A 54980A 568771 55900A WWP008 WNH003 56322A WWS005 36549W 36549C 54975A WSZ002 WTT021 WTP002 54811A INTERIOR PARTS II EV ...

Страница 37: ...8 1 SCHEMATIC DIAGRAM OF P C B ...

Страница 38: ...8 2 PRINTED CIRCUIT BOARD Key P C B 1 ...

Страница 39: ...8 3 PRINTED CIRCUIT BOARD Key P C B 2 ...

Страница 40: ...8 4 PRINTED CIRCUIT BOARD Power P C B 2 ...

Страница 41: ... 19 ...

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