Sharp Microwave Service Manual for R-930AK and R-930AW Models

Page 5

SERVICE MANUAL

CONVECTION

MICROWAVE OVEN

R-930AK / R-930AW

FOREWORD

This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Informa- tion for the SHARP CONVECTION MICROWAVE OVENS R- 930AK / R-930AW.

It is recommended that service personnel carefully study the entire text of this manual so that they will be qualified to render satisfactory customer service.

Check the interlock switches and the door seal carefully. Special attention should be given to avoid electrical shock and microwave radiation hazard.

SHARP ELECTRONICS CORPORATION

SHARP PLAZA, MAHWAH,

NEW JERSEY 07430-2135

3

R-930AK

R-930AW

PRODUCT DESCRIPTION

GENERAL INFORMATION

OPERATION

TROUBLESHOOTING GUIDE AND TEST PROCEDURE

TOUCH CONTROL PANEL

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE

WIRING DIAGRAM

PARTS LIST

Image 5
Contents Convection Microwave Oven Table of Contents930AK 930AW Before Servicing Leakage test Microwave Measurement ProcedureRequirements Convection Microwave Oven Sharp PLAZA, Mahwah930AK / R-930AW ForewordGeneral Information SpecificationDescription Grounding InstructionsTouch Control Panel Oven DiagramOperation Power Level P-0 to P-90 CookingDescription of Operating Sequence OFF ConditionAutomatic MIX Cooking Condition Convection Cooking ConditionSensor Cooking Condition Preheating ConditionCompu BROIL/ Compu ROAST/ Compu Bake Fire Sensing Feature Microwave ModeCompu Defrost Cooking Cooking SequenceFigure O-1. Oven Schematic-OFF Condition Schematic DiagramFigure O-4. Oven Schematic-Convection Cooking Condition Description and Function of Components Heating Element Troubleshooting GuideConvection Cooking System Damper OPEN-CLOSE MechanismPossible Cause Defective Parts Test Procedure ProblemProcedure Component Test Letter Magnetron Assembly Test Test ProceduresPower Transformer Test High Voltage Rectifier TestSecondary Interlock Switch Test Procedure Component Test LetterMonitor Switch Temperature Fuse TestDamper Switch Test Test Procedures Component Test LetterChecking 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 AH Sensor Test Occurrence Cause or CorrectionChecking the initial sensor cooking condition Water load cooking testTesting Method for AH Sensor AND/OR Control Unit Test Procedures Letter Component TestChecking Control Unit R1,R2 22Ω ± R3 4.3kΩ ± 5% 1/4WThermistor Touch Control Panel AssemblyLSIIZA797DR Description of LSITOR Segment data signals Signal similar to P27Segment data signal Key strobe signalStructure of Absolute Humidity Sensor Absolute Humidity Sensor CircuitServicing Outer Case Switches Replacement Component Replacement and Adjustment ProcedurePower Transformer Removal Outer Case RemovalPositive Lock Connector NO-CASE Type Removal High Voltage Rectifier Assembly RemovalMagnetron Removal High Voltage Capacitor RemovalTurntable Motor Removal Damper Assembly RemovalOven Lamp and Lamp Socket Removal FAN Motor RemovalControl Unit and KEY Unit Control Panel Assembly and Control Unit RemovalAfter adjustment, check the following Door Replacement and AdjustmentDoor Adjustment After adjustment, make sure of the followingFigure C-5. Door Replacement and adjustment Door DisassemblyFigure S-1. Pictorial Diagram Control Panel CircuitDIP Control Panel Parts Electrical PartsCabinet Parts VSDTA123ES/-3 Oven PartsScrews Nuts and Washers Door PartsMiscellaneous Packing and Accessories HOW to Order Replacement PartsModel Number DescriptionOven Control Panel Parts Door Parts Miscellaneous 930AK 930AW
Related manuals
Manual 32 pages 15.53 Kb

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.