Related Manuals for LG MS-198H
Summarization of Contents
Service Information
Tools and Measuring Instruments for Microwave Servicing
Lists necessary tools and measuring instruments for servicing the microwave oven.
Microwave Leakage Test Cautions and Measurement
Details precautions and the process for measuring microwave energy leakage from the oven.
Microwave Power Output Measurement
Overview of Disassembly and Adjustment Procedures
Introduces the procedures for disassembling and adjusting microwave oven components.
Disassembly and Adjustment Procedures
Outer Case, Power Cord, and Control Panel Removal
Instructions for removing the outer case, power cord, and control panel assembly.
Door and High Voltage Component Removal
Procedures for removing the door, HV transformer, capacitor, diode, and fan motor.
Air Duct, Magnetron, and Turntable Motor Removal
Steps for removing air duct, magnetron, and turntable motor.
PCB Assembly Removal
Procedure for removing the Printed Circuit Board assembly.
Interlock System Tests
Primary Interlock Switch Test Procedure
Procedure to test the primary interlock switch for proper operation based on door position.
Secondary Interlock Switch Test Procedure
Procedure to test the secondary interlock switch continuity in different door states.
Monitor Switch Test Procedure
Steps to test the monitor switch continuity based on door position.
Component Test Procedures
High Voltage Transformer and Magnetron Tests
Resistance measurement procedures for the high voltage transformer and magnetron.
High Voltage Capacitor and Diode Tests
Resistance and continuity tests for high voltage capacitors and diodes.
Relay, Fan Motor, and Turntable Motor Tests
Tests for relay continuity, and resistance tests for fan and turntable motors.
Troubleshooting
General Cautions and Basic Troubleshooting Issues
Covers essential cautions and common problems like no power, sparks, or uneven cooking.
Control Circuit and Display Malfunctions
Diagnoses issues related to defective control circuits and various display problems.
Oven Operation and Power Output Problems
Addresses issues such as the oven not operating, fuse blowing, or low heat output.
Cooking Performance and Heating Issues
Troubleshoots failures in starting cooking, fan motor, oven lamp, and low heat production.
Microwave Oscillation Failure Diagnosis
Guides on diagnosing and fixing the absence of microwave oscillation.
Exploded View and Parts Identification
Exploded View: Door Parts
Detailed diagram of microwave door components.
Exploded View: Control Panel Parts (MS-198H)
Diagram showing parts for the MS-198H control panel.
Exploded View: Control Panel Parts (MS-199H)
Diagram showing parts for the MS-199H control panel.
Exploded View: Oven Cavity Parts
Diagram detailing microwave oven cavity components.
Exploded View: Latch Board Parts
Diagram illustrating latch board assembly components.
Exploded View: Interior Parts
Diagram showing microwave interior components.
Exploded View: Base Plate Parts
Diagram detailing base plate components.
Schematic Diagrams
Schematic Diagram: Printed Circuit Board Layout
Shows the physical layout and component placement on the main printed circuit board.
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