Manuals / LG Electronics / Kitchen Appliance / Microwave Oven

LG Electronics MS3447GRS service manual Larch Board Parts, WSZ085 466001 43501A 43500A

Models: MS3447GR MS3447GRS

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LARCH BOARD PARTS

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LG Electronics MS3447GRS service manual Larch Board Parts, WSZ085 466001 43501A 43500A

Contents

July Website http//biz.lgservice.comBEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL P/NO MFL31039007SAFETY PRECAUTIONS MICROWAVE RADIATIONSERVICE INFORMATION CONTENTSOnly for training and service purposes LGE Internal Use OnlyMODEL SPECIFICATIONSDESCRIPTION MS3447GR / MS3447GRSNEVER injure the door seal and front plate of the oven cavity CAUTIONSNEVER operate the oven with no load NEVER put iron tools on the magnetronEARTHING INSTRUCTIONS INSTALLATIONINSTALLING 10cmCONTROL PANEL FEATURESOPERATING INSTRUCTIONS 1. SENSOR REHEAT 2. SENSOR COOK2. AUTO TOUCH 1. CANCEL FUNCTIONOPERATING SEQUENCE 6. CHILD LOCKLGE Internal Use Only SCHEMATIC DIAGRAMOnly for training and service purposes Copyright 2007 LG Electronics. Inc. All right reservedWHEN THE OVEN IS SET AT ANY LEVEL EXCEPT MAXIMUM WHEN SELECTING COOKING POWER LEVEL AND TIMEWHEN TOUCHING THE START PAD WHEN THE DOOR IS OPENED DURING COOKINGTOOLS AND MEASURING INSTRUMENTS SERVICE INFORMATIONIf the oven operates with the door open, the service personnel should MICROWAVE LEAKAGE TESTMEASUREMENT WITH A FULLY ASSEMBLED OVEN NOTES WHEN MEASURINGMEASUREMENT WITH OUTER CASE REMOVED WARNING AVOID CONTACTING ANY HIGH VOLTAGE PARTSB. POWER SUPPLY CORD MEASUREMENT OF MICROWAVE POWER OUTPUTDISASSEMBLY AND ADJUSTMENT C. CONTROL PANEL ASSEMBLYD. PCB ASSEMBLY REMOVAL E. DOOR MAIN ASSEMBLY REMOVALCAUTION Be careful not to damage door seal plate by screwdriver F. AIR DUCT ASSEMBLY REMOVAL G. MAGNETRON REMOVALH. REMOVING THE TURNTABLE MOTOR K. HIGH VOLTAGE CAPACITOR AND DIODE REMOVAL J. FAN MOTOR ASSEMBLY REMOVALI. HIGH VOLTAGE TRANSFORMER REMOVAL L. INTERLOCK SYSTEMC. MONITOR SWITCH TEST A. PRIMARY INTERLOCK SWITCH TESTB. SECONDARY INTERLOCK SWITCH TEST TEST PROCEDURECAUTIONS COMPONENT TEST PROCEDURETEST PROCEDURE COMPONENTSTEST PROCEDURE COMPONENTSRESULTS TEST PROCEDURE 5-10Relay COMPONENTSCAUSE TROUBLE SHOOTINGCONDITION REMEDY5-12 CHECKRESULT CONDITIONCONDITION RESULT5-13 CHECKCAUSE CONDITIONCHECK REMEDYCONDITION NOTE Make sure the wire leads correct position5-15 CHECKOVEN CAVITY PARTS EXPLODED VIEWINTRODUCTION INTERIOR PARTSDOOR PARTS 15006A 13581A 13552A 13536A 13213A 14890A 13720D 14026A 14970ACONTROL PANEL PARTS 24781M 23572A 23790D 268711 WTP018 23506A 24510L 24970A33052A WTT010 33390G OVEN CAVITY PARTS33112U 36549S WTP013LARCH BOARD PARTS WSZ085 466001 43501A 43500A56901A INTERIOR PARTSWTT021 WTP004 56501A 54974T 56549FBASE PLATE PARTS 56170D 63302A 63303A 948502 65006B WSZ002 WTT021