Sharp R-530EK service manual Power Transformer Removal, Magnetron Removal, Reinstallation

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R - 5 3 0 E K

R - 530EW

CAUTION: 1. DISCONNECT OVEN FROM POWER SUP PLY BEFORE REMOVING OUTER CASE.

2.DISCHARGE THE HIGH VOLTAGE CA- PACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING.

NOTE: When replacing the outer case, the 2 special Torx screws must be reinstalled in the same locations.

Special screw

Screw Driver

(Type: TORX T20 H or GTXH20-100)

POWER TRANSFORMER REMOVAL

1.Disconnect the power supply cord and then remove outer case.

2.Open the oven door and block it open.

3.Discharge high voltage capacitor.

4.Disconnect wire leads (primary and high voltage) from power transformer and the filament leads from the magnetron and capacitor terminals.

5.Remove four (4) screws holding transformer to bottom plate.

6.Remove transformer from bottom plate.

Reinstallation

1.Rest transformer on the bottom plate with its primary terminals toward the oven face plate.

2.Secure transformer with four screws to bottom plate.

3.Re-connect wire leads (primary and high voltage) to power transformer and filament leads of transformer to magnetron and high voltage capacitor. Refer to "PICTORIAL DIAGRAM" on page 35.

4.Re-install outer case and check that oven is operating properly.

HIGH VOLTAGE RECTIFIER AND HIGH VOLTAGE CAPACITOR REMOVAL

1.Disconnect the power supply cord and then remove outer case.

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.Disconnect the high voltage wire A from the high voltage capacitor.

5.Disconnect the high voltage wire of high voltage rectifier assembly from the magnetron.

6.Disconnect the filament lead (short one) of the power transformer from the high voltage capacitor.

7.Remove one (1) screw holding capacitor holder with the high voltage rectifier to the base plate.

8.Disconnect rectifier terminal from capacitor. High voltage rectifier assembly is now free.

9.Remove capacitor holder. Capacitor is now free.

CAUTION: WHEN REPLACING HIGH VOLTAGE RECTI- FIER AND HIGH VOLTAGE CAPACITOR, GROUND SIDE TERMINAL OF THE HIGH VOLTAGE RECTIFIER MUST BE SECURED FIRMLY WITH A GROUNDING SCREW.

MAGNETRON REMOVAL

Removal

1.Disconnect the power supply cord and then remove outer case.

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.Disconnect wire leads from magnetron.

5.Remove the two (2) screws holding the chassis support to the magnetron and the oven cavity front flange.

6.Slide the magnetron duct slightly so that the two (2) screws at left hand side of the magnetron appear.

7.Carefully remove the four (4) screws holding magnetron to waveguide flange.

8.Remove the magnetron with care so that the magnetron antenna is not hit by any metal object around the antenna.

9.Now, the magnetron is free.

Reinstallation

1.Re-install the magnetron to waveguide flange with care to prevent damage to the magnetron antenna.

2.Secure the magnetron with the four (4) screws.

3.Hold the chassis support to the oven cavity front plate and the magnetron with the two (2) screws.

4.Reconnect the wire leads to the magnetron. Refer to "PICTORIAL DIAGRAM" on page 35.

5.Re-install outer case and check that the oven is operating

properly.

CAUTION: WHEN REPLACING MAGNETRON, BE SURE THE R.F. GASKET IS IN PLACE AND MOUNT- ING SCREWS ARE TIGHTENED SECURELY

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Contents Table of Contents Models R 5 3 0 E K R-530EWBefore Servicing When the testing is completed Dont Touch Before ServicingMicrowave Measurement Procedure RequirementsLeakage test 530EK/ R-530EW Sharp PLAZA, MahwahMicrowave Oven ForewordDescription SpecificationGeneral Information Grounding InstructionsOven Diagram Touch Control PanelOperation Description of Operating SequenceMicrowave Cooking SequenceFigure O-1. Oven Schematic-Off Condition Description and Function of Components Troubleshooting Guide CK = Check / RE = Replace Microwave Output Power Test ProceduresProcedure Letter Component Test Magnetron Assembly Test Power Transformer TestMagnetron Temperature Fuse Test Procedure Letter Component TestCavity Temperature Fuse Test High Voltage Rectifier TestMonitor Switch Test Secondary Interlock Switch TestDoor Sensing Switch Primary Interlock System TestTouch Control Panel Assembly Test Before testingBlown Monitor Fuse Test KEY Unit Test Relay Test Compu Defrost TestProcedure Component Test Letter Foil Pattern on the Printed Wiring Board TestChecking the initial sensor cooking condition Testing Method for AH Sensor AND/OR Control UnitAH Sensor Test Water load cooking testChecking Control Unit Sensor Dummy Resistor CircuitTouch Control Panel Assembly LSIIXA098DR Key strobe signal Pin No Signal DescriptionSignal synchronized with commercial power source frequency Signal coming from touch keyCommon data signal COM8 Power source voltage GND0VInternal clock oscillation frequency control input setting Common data signal COM7Absolute Humidity Sensor Circuit Common data signal COM9Common data signal COM10 Structure of Absolute Humidity SensorTouch Control Panel Servicing KRC243MComponent Replacement and Adjustment Procedure Outer Case RemovalHigh Voltage Rectifier and High Voltage Capacitor Removal Power Transformer RemovalReinstallation Magnetron RemovalOven Lamp and Lamp Socket Removal Positive Lock Connector NO-CASE Type RemovalControl Panel Assembly Removal Turntable Motor RemovalCooling FAN Motor Removal AH Sensor ReplacementInstallation RemovalDoor Replacement After adjustment, check the followingRemoval Installation ReinstallationAfter any service, make sure of the following Sealer FilmFigure S-1. Pictorial Diagram High Voltage ComponentsFigure S-2. Power Unit Circuit Circuit OFF CookRY2 ZD1SP1 VRB RY1 RY3 TTMCabinet Parts Parts ListElectric Parts Control Panel PartsMiscellaneous HOW to Order Replacement PartsDoor Parts SCREWS,NUTS and WashersOven and Cabinet Parts Control Panel Parts Door Parts Miscellaneous Packing and Accessories Copyright 2001 by Sharp Corporation ALL Rights Reserved

R-530EK specifications

The Sharp R-530EK is a notable microwave oven that combines functionality with innovation to enhance cooking convenience. With a sleek design and user-friendly interface, this model has earned a place in many kitchens around the globe.

One of the primary features of the Sharp R-530EK is its powerful microwave output. The oven boasts a maximum power of 900 watts, ensuring that food can be heated quickly and evenly. This power level allows users to prepare a variety of meals, from reheating leftovers to cooking dishes from scratch, in significantly less time than traditional cooking methods.

The R-530EK is equipped with a spacious interior, offering 25 liters of capacity. This ample space allows for cooking larger dishes or multiple servings at once. The turntable design ensures even cooking by rotating food during the heating process, further enhancing the microwave's efficiency.

Another standout feature of the Sharp R-530EK is its array of pre-programmed auto-cook menus. These presets simplify cooking by providing specific times and power levels for various types of food, including popcorn, pizzas, and oatmeal. Users can simply select the appropriate setting, and the microwave takes care of the rest, making it ideal for those who may not have extensive cooking experience.

The microwave utilizes advanced inverter technology, a feature that sets it apart from many conventional microwave ovens. Inverter technology allows for continuous and consistent power output, providing more precise temperature control. This means that delicate foods such as seafood or chocolate can be heated without the risk of overcooking or burning, resulting in better texture and flavor.

Additionally, the R-530EK is designed with multiple cooking functions that enhance its versatility. These include defrosting capabilities, grilling options, and even signals indicating the completion of cooking cycles. The easy-to-read digital display and intuitively designed buttons contribute to the overall user experience, making it accessible for individuals of all ages.

Moreover, this microwave oven ensures safety with features such as a child lock, which prevents accidental operation by little hands. The Sharp R-530EK is both an efficient and reliable addition to any kitchen, embodying the perfect blend of cutting-edge technology and practical design to meet the demands of modern cooking. With its impressive range of features and performance capabilities, it stands as a valuable tool for aspiring chefs and busy families alike.