Goldstar MA-2005ST service manual Components Test Procedure Results

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COMPONENTS	TEST PROCEDURE	RESULTS
	Antenna
	Gasket
	Chassis
	Filament
	NOTE: When testing the magnetron, be sure to install the magnetron gasket
	in the correct position and be sure that the gasket is in good condition.
HIGH VOLTAGE	Measure the resistance.	Normal: Momentarily indicates
CAPACITOR	(Ohm-meter scale: Rx1000)	several ohms, and
	¥ Terminal to terminal.	then gradually returns
		to infinite.

Measure the resistance.	Normal: Infinite.
(Ohm-meter scale: Rx1000)
¥ Terminal to case.

	HIGH VOLTAGE	Measure the continuity (Forward).	Normal: Continuity.
	DIODE
		(Ohm-meter scale: Rx10000)	Abnormal: Infinite.

NOTE :
Some inexpensive meters
may indicate infinite
resistance in both direction.	Measure the continuity (Reverse).	Normal: Infinite.
	Measure the continuity (Reverse).	Normal: Infinite.
	(Ohm-meter scale: Rx10000)	Abnormal: Continuity.

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Contents Microwave Oven Safety Precautions How a Microwave Oven Works Function & Type 1/2Type of Microwave Oven Grill Cooking Function & Type 2/2Installation Installation & Utensils 1/2Cooking Utensils Installation & Utensils 2/2History 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 heatingController Construction of microwave ovenCavity DoorHow does the microwave oven operate? Input Senondary Winding AT Microwave generation systemMagnetron 1/2 Microwave generation systemMagnetron 2/2 Testing Magnetron TubeMultiwave system What is Multi-WaveWhat’s the infrared sensor? Infrared sensorLG’s Auto Moving Heater Auto moving heaterWhat’s does move automatically? Conventional HeaterSpecifications Control Panel FeaturesOperating Sequence Schematic Circuit Description Necessary Measuring Instruments Tools and Measuring InstrumentsMicrowave Leakage Test Necessary ToolsMeasurement with a Fully Assembled Oven Measurement with Outer Case RemovedRecord Keeping and Notification After Measurement Control Panel Assembly Measurement of Microwave Power OutputDisassembly and Adjustment Power Supply CordDoor Main Assembly Removal PCB Assembly RemovalMagnetron Removal AIR Duct Assembly RemovalRemoving the Turntable Motor Interlock System FAN Motor Assembly RemovalHigh Voltage Transformer Removal High Voltage Capacitor and Diode RemovalInterlock Continuity Test Primary Interlock Switch TestSecondary Interlock Switch Test Monitor Switch TestComponents Test Procedure Component Test ProcedureComponents Test Procedure Results Relay Condition Cause Remedy Trouble ShootingResult Result Condition Check Defective PCB assembly Defective high voltage transformer Introduction Exploded ViewDoor Parts Controller Parts Oven Cavity Parts Latch Board Parts Interior Parts Base Plate Parts Schematic Diagram of P.C.B Printed Circuit Board