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LG SolarDOM MP-9482S User Manual

LG SolarDOM MP-9482S
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LIGHT OVEN
“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
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LG SolarDOM MP-9482S Specifications

General IconGeneral
TypeMicrowave Oven
Power Output (Microwave)1000 W
Convection Power1350W
DisplayLED
TurntableYes
Turntable Diameter360 mm
Interior LightYes
ColorSilver
Voltage230 V
Frequency50 Hz
Cooking ModesMicrowave, Grill, Convection
Capacity42 liters

Summary

Safety Precautions

Microwave Radiation Safety

Precautions to avoid excessive microwave energy exposure during servicing.

General Safety Precautions

General safety guidelines for servicing microwave ovens.

Specifications

Cautions

Microwave Radiation Hazards

Warnings about exposure to microwave energy and safe handling.

High Voltage Precautions

Safety measures when working with high voltage components.

Installations

Installation Guidelines

Instructions for properly installing the microwave oven.

Earthing Instructions

Critical safety instructions for earthing the appliance.

Operating Instructions

Features Overview

Description of the microwave oven's features and functions.

Control Panel Layout

Identification and function of buttons on the control panel.

Operating Sequence

Basic Operation Sequences

Covers clock setting, microwave, grill, convection, and combi cooking sequences.

Special Cooking Modes

Instructions for defrost, speed auto cook, child lock, quick start, and favorite cook.

Schematic Diagram

Circuit Description

General Details

Overview of the microwave oven's electrical system and power supply.

Door Open Operation

Circuit behavior when the oven door is opened during cooking.

Start Button with Heater Cooking

Circuit operation when start button is pressed with heater cooking.

Start Button with Microwave Cooking

Circuit operation when start button is pressed with microwave cooking.

Operation at Levels Below Maximum

How the circuit controls output power levels below maximum.

Service Information

Tools and Measuring Instruments

Lists necessary tools and measuring equipment for service tasks.

Microwave Leakage Testing

Cautions and general overview of microwave leakage testing.

Leakage Measurement Techniques

Specific methods for measuring microwave leakage with outer case removed or assembled.

Leakage Measurement Notes

Important guidelines and notes for accurate microwave leakage measurement.

Record Keeping and Notification

Procedures for documenting and reporting microwave leakage test results.

Measurement of Microwave Power Output

Procedure and Formula

Method and formula for calculating microwave power output.

Water Load Setup

Setup of water load for measuring microwave power output.

Disassembly and Adjustment

External Component Removal

Steps for removing outer case, power cord, control panel, and door.

Internal Component Removal

Steps for removing internal parts like magnetron, transformer, fan motor, HV components.

Motor, PCB & Interlock System

Instructions for removing motors, PCB assemblies, and interlock system.

Heater Element Removal

Steps to remove the upper and lower heater elements.

Interlock Continuity Test

Primary Interlock Switch Test

Procedure to test the continuity of the primary interlock switch.

Secondary Interlock Switch Test

Procedure to test the continuity of the secondary interlock switch.

Monitor Switch Test

Procedure to test the continuity of the monitor switch.

Component Test Procedures

High Voltage Component Tests

Testing procedures for HV transformer, capacitor, diode, and fuse.

Heating Element and Motor Tests

Testing procedures for heater elements, magnetron, thermostat, fan, turntable, and circulation motors.

Control System Component Tests

Testing procedures for PCB relays and key PCB for control system functionality.

Trouble Shooting

Basic Operation Failures

Troubleshooting steps for oven not working, low power, sparks, and uneven cooking.

Control Panel and Input Issues

Troubleshooting steps for control circuit, display, and input problems.

Power and Oscillation Problems

Troubleshooting steps for fuse blowing, no microwave oscillation, and low output.

Heating System Faults

Troubleshooting steps for heater not operating or low oven temperature.

Exploded View

Introduction

Overview of the exploded view section for model MP-9482S.

Door Parts

Diagram showing the assembly of the oven door components.

Control Panel Parts

Diagram showing the assembly of the control panel components.

Interior Parts

Diagram showing the assembly of interior oven components.

Oven Cavity Parts

Diagram showing the assembly of the oven cavity components.

Base Plate Parts

Diagram showing the assembly of the base plate components.

Latch Board Parts

Diagram showing the assembly of the latch board components.

Schematic Diagram of P.C.B

Printed Circuit Board (Key P.C.B.1)

Printed Circuit Board (Key P.C.B.2)

Printed Circuit Board (Power P.C.B.2)

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