Sharp R-2397 Magnetron Removal, High Voltage Transformer Removal, Blower Motor Removal

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R-2397

MAGNETRON REMOVAL

1.Remove the outer case cabinet referring to "OUTER CASE REMOVAL" and CARRY OUT 3D CHECKS.

2.Remove the eleven (11) screws holding the rear cabinet to the oven cavity.

3.Disconnect the power supply cord from the noise filter.

4.Remove the one (1) screw holding the earth wire of the power supply cord to the noise filter angle.

5.Remove the rear cabinet with the power supply cord from the oven cavity.

6.Remove the two (2) screws holding the magnetron exhaust duct to upper and lower waveguide.

7.Disconnect all the wire leads from the two (2) magnetrons.

8.Carefully remove each four (4) screws holding each two (2) magnetrons to waveguide. When removing the screws hold the magnetron to prevent it from falling.

9.Remove the magnetron from the waveguide with care so the magnetron antenna is not hit by any metal object around the antenna.

10.Now, the magnetron is free.

CAUTION: WHEN REPLACE THE MAGNETRON, BE SURE THE R.F. GASKET IS IN PLACE AND THE MAGNETRON MOUNTING SCREWS TIGHTENED SECURELY.

HIGH VOLTAGE TRANSFORMER REMOVAL

1.Remove the outer case cabinet referring to "OUTER CASE REMOVAL" and CARRY OUT 3D CHECKS.

2.Disconnect the all wire leads from the magnetron(s).

3.Remove the wire holder holding the high voltage wires.

4.Disconnect all wire leads from the high voltage transformer(s).

5.Remove the each two (2) screws holding each high voltage transformer.

6.Now, high voltage transformer(s) is (are) free.

BLOWER MOTOR REMOVAL

1.CARRY OUT 3D CHECKS.

2.Disconnect the wire leads from the blower motor and the blower motor thermal cut-out.

3.Remove the one (1) screw holding the blower motor to the oven cavity.

4.Remove the one (1) screw holding the blower motor to the chassis support.

5.Remove the blower motor. Now, the blower motor is free.

STIRRER MOTOR (UPPER) REMOVAL

1.Remove the outer case cabinet referring to "OUTER CASE REMOVAL" and CARRY OUT 3D CHECKS.

2.Disconnect the wire leads from the stirrer motor (up- per).

3.Remove the one (1) screw holding the stirrer motor (upper) to the oven cavity.

4.Turn and lift up the stirrer motor (upper).

5.Now, the stirrer motor (upper) is free.

STIRRER MOTOR (LOWER) REMOVAL

1.Disconnect oven from the power supply.

2.Remove the stirrer motor cover by snipping off the material in four portions.

3.Where the portions have been snipped off bend the portions flat. No sharp edge must be evident after removal of the stirrer cover.

4.Disconnect wire leads from the stirrer motor. (See "Positive lock connector removal")

5.Remove one (1) screw holding the stirrer motor to oven cavity.

6.Now, the stirrer motor (lower) is free.

7.After replacement use the one (1) screw to fit the stirrer motor cover. (This screw has been fitted to the base plate near the stirrer motor cover beforehand.)

OVEN LAMP SOCKET REMOVAL

1.CARRY OUT 3D CHECKS.

2.Remove the oven lamp.

3.Pull the wire leads from the oven lamp socket by pushing the terminal hole of the oven lamp socket with the flat type small screw driver.

4.Lift up the oven lamp socket.

5.Now, the oven lamp socket is free.

Oven lamp socket

Terminal

Wire lead

Flat type small screw driver

Terminal hole

Figure C-1. Oven lamp socket

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Contents Commercial Microwave Oven Table of Contents2397 General Important Information Sharp Corporation OSAKA, JapanCommercial 2397Description SpecificationProduct Description General InformationOperating Keys Installation InformationDisplay and Indicators Appearance ViewMicrowave Variable Cooking Operation SequenceOFF Condition Microwave Cooking ConditionFunction of Important Components Magnetron Thermistor Asymmetric RectifierExhaust Thermistor Intake ThermistorRemember to Check 4R Troubleshooting GuideServicing Remember to Check 3DPlugged into wall outlet Test Procedure Possible Cause Defective PartsTemperature of Intake Thermistor is High Around 20 C Power supply Voltage Rated voltage Test ProceduresProcedure Component Test Letter Magnetron Test Microwave Output Power IEC-705-1988Carry OUT 4R Checks Procedure Letter Component TestHigh Voltage Transformer Test Carry OUT 3D ChecksWeak Point A018 Procedure Component Test LetterSwitch Test High Voltage Capacitor Test Carry OUT 3D ChecksMonitor Resistor Test Carry OUT 3D Checks Fuse F6.3A TestThermal CUT-OUT Test Carry OUT 3D Checks Table Thermal Cut-out TestMotor Winding Test Procedure Component Test Letter Magnetron Thermistor TestExhaust Thermistor Test Intake Thermistor TestTouch Control Panel Assembly Test Min Cx ± 20% Cy ± 20% 5mHKEY Unit Test Circuity Test Procedures ContdTo determine if the control unit or key pad is at fault Relay TestExhaust Air Temperature Detecting Circuit Power Supply CircuitPower Sync Signal Generating Circuit Stop Switch CircuitDescription of LSI LSIIZA646DR Signal coming from touch key Pin No Signal DescriptionInternal clock oscillation frequency setting input Power source voltageSound Voltage level control terminal Servicing of Touch Control Panel Other PrecautionsServicing Shapes of Electronic ComponentsPractice for checking total service counts eg 234,567 Counts Procedure for Entering to IC-2Other Checking and Clearing PRO Cedure To check the contents of defrost Flicker / 0.1 sec BuzzerTo remove the components, proceed as follows Component Replacement and Adjustment ProcedureOuter Case Removal High Voltage Components RemovalStirrer Motor Upper Removal Magnetron RemovalHigh Voltage Transformer Removal Blower Motor RemovalProcedure Control Panel Assembly and Control Unit RemovalHOW to Release the Positive Lock Connector Control Panel Assembly RemovalPower Supply Cord Replacement Re-installAfter adjustment, make sure of the following Choke Cover Removal Door Replacement and AdjustmentDoor Replacement Door AdjustmentRequirement Service InformationPreparation for Testing Microwave MeasurementFigure O-1. Oven SChematic-OFF Condition High Voltage Components C d e CircuitFigure S-3. Printed Wiring Board Cabinet Parts Parts ListParts marked * are used in voltage more than Electric PartsVCEAB31HW104M Door Parts Oven PartsSCRE, Nuts and Washers MiscellaneousDescription HOW to Order Replacement PartsModel Number REF. noOven and Cabinet Parts Control Panel Parts Door Parts Not replaceable items 2397

R-2397 specifications

The Sharp R-2397 is a high-performance microwave oven that combines advanced technology with user-friendly features, making it a popular choice for modern kitchens. This model stands out due to its sleek design and efficient functionality, catering to both cooking enthusiasts and busy households alike.

One of the most notable features of the Sharp R-2397 is its powerful microwave cooking capabilities. With a wattage rating of 900 watts, it ensures that food is cooked evenly and quickly, allowing users to prepare meals in a fraction of the time compared to conventional ovens. The unit also offers multiple power levels, enabling precise cooking adjustments for various types of food, from defrosting to reheating and everything in between.

Another key characteristic of the R-2397 is its spacious interior. With a generous capacity of 23 liters, this microwave can accommodate larger dishes, making it suitable for families or individuals who enjoy hosting gatherings. The turntable feature promotes even cooking by rotating food continuously, ensuring that every inch is heated uniformly.

Additionally, the Sharp R-2397 is equipped with a range of convenient presets and auto-cook functions. These pre-programmed settings allow users to optimize cooking times for common dishes, such as popcorn, vegetables, and frozen meals, simplifying meal preparation and enhancing user experience. The intuitive control panel is designed to be user-friendly, ensuring that anyone can operate the microwave with ease.

Safety is also a significant consideration in the design of the Sharp R-2397. The unit comes with a child lock function, preventing accidental operation and ensuring that the oven is used safely in households with young children. This feature adds peace of mind for parents while using the appliance in their daily routines.

Moreover, the R-2397 incorporates a modern aesthetic that can fit into various kitchen styles. Its polished exterior and compact design make it both attractive and practical, with the added advantage of easy cleaning and maintenance.

In summary, the Sharp R-2397 is a versatile microwave oven that offers a blend of power, efficiency, and user-centric features. With its high wattage, spacious interior, smart presets, and safety measures, it is an excellent addition to any kitchen, catering to everyday cooking needs and helping to simplify meal times. Whether reheating leftovers or cooking a new recipe, the Sharp R-2397 sets itself apart as a reliable kitchen companion.