Frigidaire LCRT2010ST service manual Microwave Radiation, Antenna

Page 5

CAUTIONS

Unlike other appliances, the microwave oven is high-voltage and high-current equipment. Though it is free from danger in ordinary use, extreme care should be taken during repair.

•DO NOT operate on a 2-wire extension cord during repair and use.

•NEVER TOUCH any oven components or wiring during operation.

•BEFORE TOUCHING any parts of the oven, always remove the power plug from the outlet.

•For about 30 seconds after the oven stop, an electric charge remains in the high voltage capacitor. When replacing or checking, you must discharge the high voltage capacitor by shorting across the two terminals with an insulated screwdriver.

MICROWAVE RADIATION

Personnel should not be exposed to the microwave energy which may radiate from the magnetron or other microwave generating device if it is improperly used or connection. All input and output microwave connections, waveguide, flange and gasket must be secure never operate the device without a microwave energy absorbing load attached.

Never look into an open waveguide or antenna while the device is energized.

•Proper operation of the microwave oven requires that the magnetron be assembled to the waveguide and cavity. Never operate the magnetron unless it is properly installed.

•Be sure that the magnetron gasket is properly installed around the dome of the tube whenever installing the magnetron.

ANTENNA

FILAMENT

TERMINALS

Gasket

COOLING FIN

MAGNETRON CHASSIS GROUND

•Remove your watches whenever working close to or replacing the Magnetron.

•DO NOT touch any parts of the control panel circuit. A resulting static electric discharge may damage this P.C.B.

•NEVER operate the oven with no load.

•NEVER injure the door seal and front plate of the oven cavity.

•NEVER put iron tools on the magnetron.

•NEVER put anything into the latch hole and the interlock switches area.

MAGNETRON

THE OVEN IS TO BE SERVICED ONLY BY PROPERLY QUALIFIED SERVICE PERSONNEL.

2-1

Page 4 Page 6
Image 5
Page 4 Page 6
Contents Microwave Oven Microwave Radiation Safety PrecautionsContents Description SpecificationsAntenna Microwave RadiationGrounding Instructions InstallationsInstalling Control Panel FeaturesOperating Instructions Operating Sequence Schematic Diagram General Details Circuit DescriptionMicrowave Leakage Test Service InformationTools and Measuring Instruments Special TIP Record Keeping and Notification After MeasurementDisassembly and Adjustment Measurement of Microwave Power OutputPower Supply Cord Control Panel AssemblyDoor Main Assembly / Removal PCB Assembly RemovalRemoving Sensor AIR Duct Assembly / RemovalMagnetron Removal Removing the Turntable Motor FAN Motor Assembly RemovalHigh Voltage Transformer Removal High Voltage Capacitor and Diode RemovalInterlock Mechanism Interlock SystemSecondary Interlock Switch Test Primary Interlock Switch TestMonitor Switch Test Components Test Procedure ResultsComponents Test Procedure Component Test ProcedureFilament Winding Primary Terminal MagnetronDiode High VoltageCapacitor Relay PowerLevel FAN MotorCondition 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
Top Page Image Contents