Sharp R-216LS service manual Foreword and Warning

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R216LS

CHAPTER 3. FOREWORD AND WARNING

[1] FOREWORD

This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVEN, R-216LS.

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.

[2] WARNING

Never operate the oven until the following points are ensured.

(A)The door is tightly closed.

(B)The door brackets and hinges are not defective.

(C)The door packing is not damaged.

(D)The door is not deformed or warped.

(E)There is not any other visible damage with the oven.

Servicing and repair work must be carried out only by trained service personnel.

[3] DANGER

Certain initial parts are intentionally not grounded and present a risk of electrical shock only during servicing. Service personnel - Do not contact the following parts while the appliance is energized;

High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness; If provided, Vent Hood, Fan assembly, Cooling Fan Motor.

All the parts marked “ “ on parts list are used at voltages more than 250V.

Removal of the outer wrap gives access to voltage above 250V.

All the parts marked “*“ on parts list may cause undue microwave exposure, by themselves, or when they are damaged, loosened or removed.

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Contents Model R-216LS Adjustment Procedure Precautions for Using Lead Free SolderComponent Replacement Microwave Measurement PROBefore Servicing When the testing is completed After repairingBefore Servicing Requirements Microwave Measurement ProcedurePreparation for testing Leakage testForeword and Warning ForewordProduct Description 1 Specifications DescriptionGrounding Instructions Oven DiagramGeneral Information OvenTouch Control Panel Description of Operating Sequence Power Level CookingPower Output Reduction OFF ConditionOff Condition Schematic Door Closed Clock Appears on DisplayOven Schenatic Cooking ConditionDescription and Function of Components Troubleshooting Guide Troubleshooting ChartProcedure B Power Transformer Test Test ProceduresProcedure a Magnetron Assembly Test Procedure C High Voltage Rectifier TestProcedure F Secondary Interlock Switch Test Procedure D High Voltage Capacitor TestProcedure E Temperature Fuse Oven Test Procedure F Primary Interlock System TestProcedure G Monitor Switch Test Procedure H Blown Minitor Fuse TestPrimary Interlock Relay RY2 Key Unit Procedure I Noise Filter TestProcedure J Touch Control Panel Assembly Test Control UnitProcedure K KEY Unit Test Procedure L Relay TestProcedure M Defrost Test Procedure N Foil Pattern on the Printed Wiring Board TestR216LS Outline of Touch Control Panel Touch Control Panel AssemblyPrecautions for Handling Electronic Components Servicing for Touch Control PanelOther Precautions Servicing ToolsEmploying lead-free solder Precautions for Using LEAD-FREE SolderUsing lead-free wire solder SolderingComponent Replacement and Adjustment PROCE- Dure Outer Case RemovalReinstall Power Transformer RemovalPositive Lock Connector NO-CASE Type Removal Magnetron RemovalControl Panel Assembly Removal Graphic Sheet and Membrane Switch ReplacementTrol Panel Assembly Removal Power Supply Cord Replacement Turntable Motor RemovalCooling FAN Motor Removal Make Sure That the FAN Blade Rotates Smooth After Installed InstallationAdjustment Make Sure That the Axis of the Shaft is not SlantedDoor Replacement After adjustment, check the followingAfter any service, make sure of the following Figure C-7. Door Replacement Sealer FilmDiagrams Pictorial Diagram FigureControl Panel Circuit Figure S-2 Liquid Crystal DisplayUnit Printed Wiring Board Figure S-3DIP CodeMeno Parts Guide Oven Parts Oven Parts Parts Code Price NEW Description Rank MarkDoor and Control Panel Parts Door and Control Panel Parts „INDEX

R-216LS specifications

The Sharp R-216LS is a versatile microwave oven that combines affordability with a range of features designed to enhance your cooking experience. Compact yet powerful, this model is especially suitable for small kitchens or dorm rooms, where space is at a premium.

One of the standout features of the Sharp R-216LS is its impressive 800 watts of cooking power. This ensures quick and efficient heating, allowing users to prepare meals in a fraction of the time compared to conventional ovens. The microwave also features a variety of power levels, providing flexibility for different types of cooking and reheating tasks, from defrosting frozen food to cooking delicate items like baked goods.

The R-216LS comes equipped with a spacious 20-liter capacity, which is surprisingly roomy for its size. This allows for ample space to heat up large dishes or multiple servings at once. The interior is designed with easy cleaning in mind, featuring a non-stick coating that prevents food from adhering to the surfaces and simplifies maintenance.

In terms of usability, the Sharp R-216LS boasts a user-friendly interface with straightforward knobs and buttons. It includes a timer and a range of pre-programmed cooking options, enabling users to cook a variety of foods with just the touch of a button. This is particularly beneficial for those new to microwave cooking or for busy individuals looking to save time.

The microwave also incorporates advanced technologies, including inverter microwave technology, which provides a continuous stream of cooking power for more even heating and defrosting. This ensures that your food is cooked thoroughly without the risk of hot and cold spots.

Safety is another priority in the design of the R-216LS. It features a child safety lock, which prevents accidental operation, making it a perfect choice for families with young children. The model also has an automatic shut-off feature, ensuring that the microwave turns off when not in use.

In summary, the Sharp R-216LS is a compact microwave that offers a blend of power, convenience, and safety features, making it an excellent choice for anyone seeking a reliable cooking appliance. Whether for reheating leftovers, cooking meals, or defrosting ingredients, this microwave is designed to meet the diverse needs of modern kitchens. With its combination of thoughtful design and functionality, the R-216LS stands out as a worthy investment for those looking for efficiency and performance in their cooking appliances.
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