Microwave Oven | Goldstar MA-2005ST instruction

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MICROWAVE OVEN

SERVICE MANUAL

MODEL : MA-2005ST

CAUTION

BEFORE SERVICING THE UNIT, READ THE

SAFETY PRECAUTIONS IN THIS MANUAL.

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Goldstar MA-2005ST service manual Microwave Oven

Contents

Microwave Oven Safety Precautions How a Microwave Oven Works Function & Type 1/2Type of Microwave Oven Grill Cooking Function & Type 2/2 Installation Installation & Utensils 1/2 Cooking Utensils Installation & Utensils 2/2 History of dielectric heating What’s the microwave? 1/2Principle of dielectric heating What’s the microwave? 2/2 Safety of microwave ovenDefinition of electric wave Conventional heating Conventional heating vs. dielectric heating Cavity Construction of microwave ovenDoor Controller How does the microwave oven operate? Input Senondary Winding AT Microwave generation systemMagnetron 1/2 Microwave generation systemMagnetron 2/2 Testing Magnetron Tube Multiwave system What is Multi-Wave What’s the infrared sensor? Infrared sensor What’s does move automatically? Auto moving heaterConventional Heater LG’s Auto Moving Heater Specifications Control Panel Features Operating Sequence Schematic Circuit Description Microwave Leakage Test Tools and Measuring InstrumentsNecessary Tools Necessary Measuring Instruments Measurement with a Fully Assembled Oven Measurement with Outer Case RemovedRecord Keeping and Notification After Measurement Disassembly and Adjustment Measurement of Microwave Power OutputPower Supply Cord Control Panel Assembly Door Main Assembly Removal PCB Assembly Removal Magnetron Removal AIR Duct Assembly RemovalRemoving the Turntable Motor High Voltage Transformer Removal FAN Motor Assembly RemovalHigh Voltage Capacitor and Diode Removal Interlock System Secondary Interlock Switch Test Primary Interlock Switch TestMonitor Switch Test Interlock Continuity Test Components Test Procedure Component Test Procedure Components Test Procedure Results Relay Condition Cause Remedy Trouble Shooting Result Result Condition Check Defective PCB assembly Defective high voltage transformer Introduction Exploded View Door Parts Controller Parts Oven Cavity Parts Latch Board Parts Interior Parts Base Plate Parts Schematic Diagram of P.C.B Printed Circuit Board