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LG LMV1813ST User Manual

LG LMV1813ST
50 pages
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MICROWAVE OVEN
SERVICE MANUAL
MODEL: LMV1813SW
LMV1813SB
LMV1813ST
CAUTION
BEFORE SERVICING THE UNIT, READ THE
SAFETY PRECAUTIONS IN THIS MANUAL.
Website: http://biz.lgservice.com
P/NO : MFL06272514
February, 2010
Printed in China
Internal Use Only
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LG LMV1813ST Specifications

General IconGeneral
TypeOver-the-Range
Capacity1.8 cu. ft.
Power1000 Watts
Control TypeTouch
VentilationYes
TurntableYes
Sensor CookingYes
ColorStainless Steel
Convection CookingNo
GrillNo
Child LockYes
Auto DefrostYes
Number of Power Levels10
Turntable Diameter14.2 inches
Exterior Dimensions29.88" x 15.38" x 15.5"

Summary

FOREWORD

SPECIFICATIONS

SWITCH CHART

Table detailing switch modes and conditions for microwave operation.

CAUTIONS

MICROWAVE RADIATION

Safety precautions regarding exposure to microwave energy during service.

INSTALLATION

PRECAUTIONS ON INSTALLATION

Guidelines for safe and proper installation of the microwave oven.

GROUNDING INSTRUCTIONS

Essential steps for ensuring the unit is safely grounded to prevent electric shock.

OPERATION

Control Panel Features

Overview of the microwave's control panel buttons and display functions.

Explanation of Control Panel

Detailed explanation of each function and button on the control panel.

WIRING DIAGRAM / KEY MATRIX

Wiring Diagram

Schematic diagram illustrating the electrical connections within the microwave.

KEY MATRIX

Matrix showing the relationship between keypad inputs and oven functions.

TROUBLESHOOTING

General Information for Service

Important preliminary information and precautions for service technicians.

SAFETY CAUTION

Critical safety warnings and procedures to follow before and during servicing.

BASIC CHECK SUMMARY

Summary of basic checks for diagnosing common microwave operational issues.

TROUBLESHOOTING

Specific troubleshooting steps for diagnosing and resolving various operational faults.

Keypad Failure

Diagnostic steps for addressing issues where the keypad is not functioning correctly.

No Heat / No Cook

Troubleshooting guide for situations where the microwave does not heat or cook food.

Turntable Motor Does Not Work

Steps to diagnose and resolve problems with the turntable motor not operating.

Turn on automatically

Troubleshooting steps for when the microwave unexpectedly turns on by itself.

MICROWAVE LEAKAGE TEST

Cautions and Equipment

Safety considerations and necessary equipment for performing microwave leakage tests.

Measurement Procedures

Procedure for measuring microwave energy leakage using specialized equipment.

Measurement Guidelines

Guidelines for measuring leakage with and without the outer case, and record keeping.

POWER OUTPUT MEASUREMENT

INTERLOCK SYSTEM

Interlock Mechanism and Adjustment

Details on the door interlock mechanism, its adjustment, and related checks.

System Testing and Continuity

Procedures for testing latch sequence, energy leakage, and switch continuity.

COMPONENT TESTING INFORMATION

Safety Precautions and General Procedures

Safety notes and general procedures for testing microwave components.

Component Specific Tests

Detailed tests for capacitors, diodes, motors, sensors, and keypads.

DISASSEMBLY INSTRUCTIONS

General Notes and Circuit Board Removal

Critical notes and steps for removing the power and control circuit board.

Connector and Case Removal

Procedures for handling FPC connectors and removing the outer case.

REMOVING THE OUT CASE

Instructions for disassembling and removing the outer casing of the microwave oven.

REMOVING THE DOOR INTERLOCK SWITCHES

Steps for safely removing the door interlock switches for inspection or replacement.

Component Removal (Magnetron, Fan)

Procedures for removing the magnetron and stirrer fan assembly.

Door and Motor Removal

Instructions for removing the door, ventilation motor, and turntable motor.

Sensor Replacement

Steps for removing and replacing the humidity sensor unit.

EXPLODED VIEW

DOOR PARTS (I)

Exploded view diagram showing the assembly of door components.

CONTROLLER PARTS (I)

Exploded view diagram illustrating the various controller assembly parts.

OVEN CAVITY PARTS (I)

Exploded view diagram detailing components within the oven cavity.

LATCH BOARD PARTS

Exploded view diagram showing the components of the latch board assembly.

INTERIOR PARTS (I)

Exploded view diagram illustrating internal components of the microwave.

INTERIOR PARTS (II)

Exploded view diagram showing additional interior parts of the microwave.

INSTALLATION PARTS

Exploded view diagram detailing parts used for microwave installation.

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