Frigidaire LCRT2010ST Component Test Procedure, Components Test Procedure, Magnetron

Page 19

COMPONENT TEST PROCEDURE

CAUTIONS

1.DISCONNECT THE POWER SUPPLY CORD FROM THE OUTLET WHENEVER REMOVING THE OUTER CASE FROM THE UNIT. PROCEED WITH THE TEST ONLY AFTER DISCHARGING THE HIGH VOLTAGE CAPACITOR AND REMOVING THE WIRE LEADS FROM THE PRIMARY WINDING OF THE HIGH VOLTAGE TRANSFORMER. (SEE PAGE 2-1)

2.ALL OPERATIONAL CHECKS WITH MICROWAVE ENERGY MUST BE DONE WITH A LOAD (1 LITER OF WATER IN CONTAINER) IN THE OVEN.

COMPONENTS

TEST PROCEDURE

RESULTS

HIGH VOLTAGE TRANSFORMER (Wire leads removed)

FILAMENT

WINDING

PRIMARY

TERMINAL

	1.	Measure the resistance.	Approx.: 0.2 ~ 0.4 ohm
		(Ohm-meter scale: Rx1 and Rx100)	Approx.: 0.2 ~ 0.4 ohm
		(Ohm-meter scale: Rx1 and Rx100)	Approx.: 70 ~ 100 ohm
		• Primary winding	Approx.: 70 ~ 100 ohm
		• Primary winding	Less than: 1 ohm
		• Secondary winding	Less than: 1 ohm
		• Secondary winding
		• Filament winding
	2.	Measure the resistance.
		(Ohm-meter scale: Rx1000)	Normal: Infinite
		• Primary winding to ground	Normal: Infinite
		• Filament winding to ground

MAGNETRON	1. Measure the resistance.		Normal: Less than 1 ohm
(Wire leads removed)		(Ohm-meter scale: Rx1)
		• Filament terminal
	2. Measure the resistance.		Normal: Infinite
		(Ohm-meter scale: Rx1000)
		• Filament to chassis

5-9

Image 19

Contents Microwave Oven Microwave Radiation Safety PrecautionsContents Description SpecificationsAntenna Microwave RadiationInstalling InstallationsGrounding Instructions Operating Instructions FeaturesControl Panel Operating Sequence Schematic Diagram General Details Circuit DescriptionTools and Measuring Instruments Service InformationMicrowave Leakage Test Special TIP Record Keeping and Notification After MeasurementControl Panel Assembly Measurement of Microwave Power OutputDisassembly and Adjustment Power Supply CordDoor Main Assembly / Removal PCB Assembly RemovalMagnetron Removal AIR Duct Assembly / RemovalRemoving Sensor High Voltage Capacitor and Diode Removal FAN Motor Assembly RemovalRemoving the Turntable Motor High Voltage Transformer RemovalInterlock Mechanism Interlock SystemComponents Test Procedure Results Primary Interlock Switch TestSecondary Interlock Switch Test Monitor Switch TestMagnetron Component Test ProcedureComponents Test Procedure Filament Winding Primary TerminalCapacitor High VoltageDiode FAN Motor PowerRelay LevelCondition Cause Remedy Trouble ShootingCheck Result Cause ConditionCondition Check Result Cause Remedy Malfunction of secondary switchSetting time does not count down when touching Start pad Check Result Introduction Exploded ViewDoor Parts Controller Parts Oven Cavity Parts Latch Board Parts 50FZZA Interior PartsBase Plate Parts Sensor Parts