Sharp R-930AW Control Panel Assembly and Control Unit Removal, Control Unit and KEY Unit

Page 32

R-930AK

R-930AW

8.

Remove the magnetron air guide from the waveguide.

INSTALLATION

9.

Disconnect wire leads from the fan motor.

1.

Install the fan motor to the fan duct with the two (2)

10. Release the main harness from the hole of the fan duct.

 

screws and nuts.

11. Release the thermistor harness from the hole of the fan

2.

Install the fan blade to the fan motor shaft according the

 

duct.

 

following procedure.

12. Release one (1) tab holding the fan duct to the rear

1)

Hold the center of the bracket which supports the shaft

 

cabinet.

 

of the fan motor on the flat table.

13. Release one (1) tab holding the fan duct to the air guide

2)

Apply the screw lock tight into the hole (for shaft) of the

 

(Right).

 

fan blade.

14.Remove the fan duct assembly from the oven.

3)

Install the fan blade to the shaft of fan motor by pushing

15.Remove the fan blade from the fan motor shaft according

 

the fan blade with a small, light weight, ball peen hammer

 

the following procedure.

 

or rubber mallet.

1)

Hold the edge of the rotor of the fan motor by using a pair

CAUTION:

 

of grove joint pliers.

*

Do not hit the fan blade strongly when installed

CAUTION:

 

because the bracket may be disfigured.

*

Make sure that any pieces do not enter the gap

*

Make sure that the fan blade rotates smooth after

 

between the rotor and the stator of the fan motor

 

installation.

 

because the rotor is easily shaven by pliers and

*

Make sure that the axis of the shaft is not slanted.

 

metal pieces may be produced.

3.

Reset the fan duct assembly to its place.

*

Do not touch the pliers to the coil of the fan motor

4.

Install the tabs of fan duct to the rear cabinet and air

 

because the coil may be cut or injured.

 

guide.

*

Do not disfigure the bracket by touching with the

5.

Install the magnetron air guide with the one (1) screw.

 

pliers.

6.

Reinstall the main harness and thermistor harness to

2)

Remove the fan blade from the shaft of the fan motor by

 

each hole of the fan duct.

 

pulling and rotating the fan blade with your hand.

7.

Reinstall the chassis support to the control panel back

3) Now, the fan blade will be free.

 

plate, waveguide and rear cabinet with the three (3)

CAUTION:

 

screws.

*

Do not use this removed fan blade again because the

8.

Re-connect the wire leads to the fan motor, referring to

 

hole (for shaft) of it may become bigger than a

 

the pictorial diagram.

 

standard one.

9.

Re-install the fan motor grounding wire to the air guide

16.Remove the two (2) screws and nuts holding the fan

 

(Right) with one (1) screw.

motor to the fan duct.

 

 

17.Now, the fan motor is free.

 

Shaft

Coil

 

 

 

 

Groove joint pliers

 

 

 

Side View

Table

Center of

 

 

 

bracket

Rear View

Shaft

 

Stator

 

 

These are the position

 

 

 

 

Gap

Axis

where should be

 

Bracket

Rotor

pinched with pliers

 

Stator

 

 

 

Rotor

 

CONTROL PANEL ASSEMBLY AND CONTROL UNIT REMOVAL

To remove the control panel, procedure as follows:

1.Disconnect oven from power supply and remove outer case.

2.Discharge high voltage capacitor.

3.Disconnect connector CN-A, CN-E and CN-F from the control unit.

4.Disconnect the wire leads from the relays RY1, RY2 and RY3.

5.Remove one (1) screw holding the control panel back plate to the chassis support.

6.Remove two (2) screws holding the bottom edge of the back plate to the cabinet base.

7.Remove one (1) screw holding the back plate to the oven cavity flange.

8.Lift up and pull the control panel assembly forward. Replacement of individual component is as follows;

CONTROL UNIT AND KEY UNIT

1.Disconnect the wire connector from the control unit.

2.Remove the four (4) screws holding the panel frame to the back plate.

3.Separate the panel frame and back plate.

4.Remove the three (3) screws holding the control unit to the panel frame.

5.Lift up the control unit and disconnect the key connector from the control unit.

6.Now, the control unit and frame assembly are separated. NOTE; 1. Before attaching a new key unit, remove remaining adhesive on the control panel frame surfaces

completely with alcohol and so on.

2.When a attaching the key unit to the control panel frame, adjust the lower edge and right edge of the key unit to the correct position of the control panel frame.

3.Stick the key unit firmly to the control panel frame by rubbing with soft cloth not to scratch.

30

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Contents Table of Contents Convection Microwave Oven930AK 930AW Before Servicing Leakage test Microwave Measurement ProcedureRequirements Sharp PLAZA, Mahwah Convection Microwave Oven930AK / R-930AW ForewordSpecification General InformationDescription Grounding InstructionsOven Diagram Touch Control PanelPower Level P-0 to P-90 Cooking OperationDescription of Operating Sequence OFF ConditionConvection Cooking Condition Automatic MIX Cooking ConditionSensor Cooking Condition Preheating ConditionFire Sensing Feature Microwave Mode Compu BROIL/ Compu ROAST/ Compu BakeCompu Defrost Cooking Cooking SequenceSchematic Diagram Figure O-1. Oven Schematic-OFF ConditionFigure O-4. Oven Schematic-Convection Cooking Condition Description and Function of Components Troubleshooting Guide Heating ElementConvection Cooking System Damper OPEN-CLOSE MechanismTest Procedure Problem Possible Cause Defective PartsTest Procedures Procedure Component Test Letter Magnetron Assembly TestPower Transformer Test High Voltage Rectifier TestProcedure Component Test Letter Secondary Interlock Switch TestMonitor Switch Temperature Fuse TestTest Procedures Component Test Letter Damper Switch TestChecking Temperature in the Convection Mode Thermal CUT-OUT TestKEY Unit Test Outer Case Switch TestTouch Control Panel Assembly Test Compu Defrost Test Weight 1ST Stage 2ND Stage 3RD Stage 4TH Stage Level TimeRelay Test Occurrence Cause or Correction AH Sensor TestChecking the initial sensor cooking condition Water load cooking testTest Procedures Letter Component Test Testing Method for AH Sensor AND/OR Control UnitChecking Control Unit R1,R2 22Ω ± R3 4.3kΩ ± 5% 1/4WTouch Control Panel Assembly ThermistorDescription of LSI LSIIZA797DRTOR Signal similar to P27 Segment data signalsSegment data signal Key strobe signalAbsolute Humidity Sensor Circuit Structure of Absolute Humidity SensorServicing Component Replacement and Adjustment Procedure Outer Case Switches ReplacementPower Transformer Removal Outer Case RemovalHigh Voltage Rectifier Assembly Removal Positive Lock Connector NO-CASE Type RemovalMagnetron Removal High Voltage Capacitor RemovalDamper Assembly Removal Turntable Motor RemovalOven Lamp and Lamp Socket Removal FAN Motor RemovalControl Panel Assembly and Control Unit Removal Control Unit and KEY UnitDoor Replacement and Adjustment After adjustment, check the followingDoor Adjustment After adjustment, make sure of the followingDoor Disassembly Figure C-5. Door Replacement and adjustmentFigure S-1. Pictorial Diagram Circuit Control PanelDIP Control Panel Parts Electrical PartsCabinet Parts Oven Parts VSDTA123ES/-3Screws Nuts and Washers Door PartsMiscellaneous HOW to Order Replacement Parts Packing and AccessoriesModel Number DescriptionOven Control Panel Parts Door Parts Miscellaneous 930AK 930AW
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R-930AW specifications

The Sharp R-930 series of microwave ovens, including the R-930AK, R-930AW, and R-930CS models, represent a blend of advanced technology and user-centric design. These units are well-suited for modern kitchens, offering convenience, versatility, and efficiency that meet the needs of busy households.

One of the standout features of the R-930 series is the powerful Inverter Technology. Unlike traditional microwaves that rely on pulsing power to cook food at lower settings, Inverter Technology delivers a steady stream of cooking power. This results in more even heating, improved texture, and better overall cooking results for delicate dishes like custards and sauces.

The spacious interior of these models provides ample room for cooking a variety of dishes simultaneously. The R-930 series is designed with a turntable that ensures uniform cooking by rotating food as it heats. Additionally, these microwaves often come with a variety of pre-programmed settings for popular dishes, making it easier for users to prepare meals with minimal effort. These presets take the guesswork out of cooking and help ensure consistent results every time.

The R-930AK and R-930AW models are particularly noted for their sleek and modern aesthetic, available in stylish black and white exteriors, respectively. Both models also feature user-friendly controls, which include a digital display and intuitive buttons, ensuring that even those new to microwave cooking can navigate settings with ease.

Another characteristic that distinguishes the R-930CS is its advanced sensor cooking technology. This feature monitors the cooking process and automatically adjusts power levels and cooking times to achieve optimal results. This takes the hassle out of determining how long to cook various foods, especially those that require specific attention to avoid overcooking or undercooking.

The Sharp R-930 series also emphasizes safety and convenience. Child safety locks are integrated into the design to prevent unauthorized use, making it a practical choice for families with young children. Moreover, the easy-clean interior ensures that spills and splatters can be quickly wiped away, maintaining hygiene and preserving the appliance's appearance.

In summary, the Sharp R-930AK, R-930AW, and R-930CS models are proficient microwave ovens equipped with innovative technologies and thoughtful features that cater to a variety of cooking needs. With their combination of inverter cooking technology, spacious interiors, sleek designs, and user-friendly controls, these models are ideal choices for anyone looking to enhance their culinary capabilities in a fast-paced world.