Manuals / LG Electronics / Kitchen Appliance / Microwave Oven

LG Electronics LMV1625B Oven Cavity Parts, 33530A, WTT021, WTT028, WTT029 WTT029 34810Q 33112U

Models: LMV1625W LMV1625B

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Page 38

OVEN CAVITY PARTS

OVEN CAVITY PARTS

33530A

*05

34930R

35026G

33052A

33550L

36912C

WTT022

35230A

	WTT021
WTT028	34960A
WTT028

WTT029

WTT029

34810Q

33112U

*01

*02

*04

368771

63303A

63302A

34890C

34810T

WTT022

8-3

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LG Electronics LMV1625B Oven Cavity Parts, 33530A, 34930R 35026G 33052A 33550L 36912C WTT022 35230A, WTT021, WTT028

Contents

MICROWAVE OVEN SERVICE MANUALSAFETY PRECAUTIONS IN THIS MANUAL MODEL LMV1625B LMV1625WTO EXCESSIVE MICROWAVE ENERGY SAFETY PRECAUTIONS PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLE EXPOSURE FOREWORD TABLE OF CONTENTSSPECIFICATIONS 1,500W maximum Microwave oven+Cook top lamp+Ventilation fanMAGNETRON CAUTIONSMICROWAVE RADIATION GasketGROUNDING INSTRUCTIONS INSTALLATIONSPRECAUTIONS ON INSTALLATION OPERATING INSTRUCTIONS CONTROL PANELCONTROL PANEL INSTRUCTIONS OVERALL CIRCUIT DIAGRAM SCHEMATIC DIAGRAMMATRIX CIRCUIT FOR TOUCH KEY BOARD FEATURES AND SPECIFICATIONS FEATURES GENERAL INFORMATION FOR SERVICEGENERAL PRECAUTIONS IN USE TRIAL OPERATIONSERVICE INFORMATION PRECAUTIONS AND REPAIR SERVICE TIPSIf the oven operates with the door open, the service personnel should MICROWAVE LEAKAGE TESTEQUIPMENT Tell the user not to operate the ovenMEASUREMENT WITH THE OUTER CASE REMOVED NOTE WHEN MEASURINGPOWER OUTPUT MEASUREMENT MEASUREMENT WITH A FULLY ASSEMBLED OVENIMPORTANT NOTES DISASSEMBLY INSTRUCTIONSA. REMOVING POWER AND CONTROL CIRCUIT BOARD Figures 1, 2 and HOW TO REMOVE THE F.P.C. CONNECTOR HOW TO INSERT THE F.P.C. CONNECTORB. REMOVING THE OUT CASEFigure C REMOVING THE DOOR INTERLOCK SWITCHES Figures 9,10 D. REMOVING MAGNETRON CAUTION Be careful not to damage door seal plate with the screwdriver F. REMOVING DOOR FigureG. DISASSEMBLING DOOR Figure H. ASSEMBLING DOOR I. REMOVING THE VENTILATION FANASSYK. REMOVING THE TURNTABLE MOTOR CHECK THE DOOR LATCH AND SWITCH CLOSING INTERLOCK SYSTEMADJUSTMENT PROCEDURES ADJUST THE LATCH AND SWITCH CLOSINGTEST THE LATCH AND SWITCH SEQUENCE TEST THE MICROWAVE ENERGY LEAKAGEB. SECONDARY INTERLOCK SWITCH TEST INTERLOCK CONTINUITY TESTA. PRIMARY INTERLOCK SWITCH TEST C. MONITOR SWITCH TESTCOMPONENTS TEST AND CHECKOUT PROCEDURES, AND TROUBLE SHOOTINGTEST PROCEDURES RESULTSRESULTS TEST PROCEDURESCOMPONENTS Figure 25-aRESULTS TEST PROCEDURESCOMPONENTS Measure the resistance between terminalwCAUTION The relay connector 2White 1 CHECKOUT PROCEDURES FOR FUSE BLOWINGTEST PROCEDURES These two connectors are not InterDefective RELAY3 Replace RELAY3 PROBLEM B 2 CHECKOUT PROCEDURES FOR RELAY PROBLEM ARemove the mate connector of I/O CON from the circuit board GOOD3 Proper temperature measurement is not obtained 3 CHECKOUT PROCEDURES FOR CIRCUIT BOARDThe following symptoms indicate a defective circuit board 8 Some of the indicators do no flicker light upRuns PROBLEM - C Unit does not heat up even if display counts down when PROBLEM - D No buzzing when touching the key, between Check 1. POWER SUPPLY 13552A 13581A 13536A 13213A 13720D WTT021 14890A 14026A 14970A 13650A EXPLODED VIEWDOOR PARTS 23506A CONTROLLER PARTS268711 24781M 24810P WTP018 23572A WTT029 34930R 35026G 33052A 33550L 36912C WTT022 35230A OVEN CAVITY PARTS33530A WTT021466001 LATCH BOARD PARTS43500A WSZ084WSZ002 INTERIOR PARTSI33390G 34370T 35889A36549V INTERIOR PARTS56912B 55231C 53550L 56804A44360A WSZ098 WSZ133 INSTALLATION PARTSWSZ203 WSZ204SCHEMATIC DIAGRAMPRINTED CIRCUIT BOARD P/NO. 3828W5S3242 Printed in Korea