Sharp R-210A Component Replacement and Adjustment Procedure, Outer Case Removal, Manners

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R-210A

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE

WARNING: Avoid possible exposure to microwave energy. Please follow the instructions below before operating the oven.

1.Disconnect oven from power supply.

2.Make sure that a definite” click” can be heard when the microwave oven door is unlatched. (Hold the door in a closed position with one hand, then push the door open button with the other, this causes the latch leads to rise, it is then possible to hear a “click’ as the door switches operate.)

3.Visually check the door and cavity face plate for dam- age (dents, cracks, signs of arcing etc.).

Carry out any remedial work that is necessary before operating the oven.

Do not operate the oven if any of the following conditions exist;

1.Door does not close firmly.

2.Door hinge, support or latch hook is damaged.

3.The door gasket or seal or damaged.

4.The door is bent or warped.

5.There are defective parts in the door interlock system.

6.There are defective parts in the microwave generating and transmission assembly.

7.There is visible damage to the oven.

Do not operate the oven:

1.Without the RF gasket (Magnetron).

2.If the wave guide or oven cavity are not intact.

3.If the door is not closed.

4.If the outer case (cabinet) is not fitted.

Please refer to ‘OVEN PARTS, CABINET PARTS, CONTROL PANEL PARTS, DOOR PARTS’, when carrying out any of the following removal procedures:

WARNING FOR WIRING

To prevent an electric shock, take the following

 

and Oven cavity.

manners.

 

3) Sharp edge:

1.

Before wiring,

 

Bottom plate, Oven cavity, Weveguide flange,

 

1)

Disconnect the power supply.

 

Chassis support and other metallic plate.

 

2)

Open the door and wedge the door open.

 

4) Movable parts (to prevent a fault)

 

3)

Discharge the high voltage capacitor and wait for

 

Fan blade, Fan motor, Switch, Switch lever, Open

 

 

60 seconds.

 

button.

2.

Don't let the wire leads touch to the following parts;

3.

Do not catch the wire leads in the outer case cabinet.

 

1)

High voltage parts:

4.

Insert the positive lock connector certainly until its pin

 

 

Magnetron, High voltage transformer, High volt-

 

is locked. And make sure that the wire leads should

 

 

age capacitor and High voltage rectifier assem-

 

not come off even if the wire leads is pulled.

 

 

bly.

5.

To prevent an error function, connect the wire leads

 

2)

Hot parts:

 

correctly, referring to the Pictorial Diagram.

 

 

Oven lamp, Magnetron, High voltage transformer

 

 

OUTER CASE REMOVAL

To remove the outer case proceed as follows.

1.Disconnect oven from power supply.

2.Open the oven door and wedge it open.

3.Remove the screws from rear and along the side edge of case.

4.Slide the entire case back about 3cm to free it from retaining clips on the cavity face plate.

5.Lift the entire case from the oven.

6.Discharge the H.V. capacitor before carrying out any further work.

7.Do not operate the oven with the outer case removed. N.B.; Step 1, 2 and 6 form the basis of the 3D checks.

CAUTION: DISCHARGE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPO- NENT OR WIRING.

POWER TRANSFORMER REMOVAL

1.CARRY OUT 3D CHECKS.

2.Disconnect the wire leads (main wire harness and H.V. fuse) from power transformer.

3.Disconnect the H.V. wire of the H.V. rectifier assembly from magnetron.

4.Disconnect the wire leads from the noise filter.

5.Remove the one (1) screw holding the capacitor holder to the oven cavity back plate.

6.Disconnect the filament lead of power transformer from the magnetron.

7.Disconnect the lead of the power transformer from high voltage capacitor.

8.Remove the two (2) screws holding the transformer to bottom plate.

9.Remove the transformer.

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Contents Model R-210A Table of Contents210A General Important Information Sharp Corporation OSAKA, JapanMicrowave Oven 210ASpecification This Appliance Must be EarthedMedium LOW/ Defrost Control Panel Appearance ViewMedium HIGH, MEDIUM, Medium LOW, LOW Cooking Operation SequenceOFF Condition Microwave Cooking ConditionFunction of Important Components Remember to Check 4R Troubleshooting GuideServicing Remember to Check 3DC D E E E F F I I I G G HJ K Troubleshooting ChartTest Procedure Possible Cause Defective Parts ProblemMicrowave Output Power IEC Test Procedures Letter Component Test Magnetron TestTest Procedures Component Test Letter Microwave Output Power 2 Litre water loadΔT1 High Voltage Rectifier Test Carry OUT 3D Checks Test Procedures Letter Component TestPower Transformer Test Carry OUT 4R ChecksFuse 13A Switch TestTemperature Fuse or Thermal CUT-OUT Test Motor Winding Test Carry OUT 3D ChecksNoise Filter Test Carry OUT 3D Checks Timer Motor with VARI-SWITCH TestTimer SWITCH- Contacts Timer MotorTo prevent an electric shock, take the following Component Replacement and Adjustment ProcedurePower Transformer Removal Outer Case RemovalOven Lamp Socket Removal Magnetron ReplacementPositive Lock Connector Removal Re-installRemoval Power Supply Cord ReplacementTurntable Motor Replacement FAN Motor ReplacementRear View Control Panel Assembly and Switch Lever RemovalInstallation Control Panel Assembly and Switch LE- VER RemovalDoor Replacement After adjustment, make sure of the followingRE-INSTALL Sealer Film InstallationHoladay HI Simpson 380M Preparation for TestingMicrowave Measurement RequirementOven Schematic-OFF Condition Oven Schematic-ON ConditionHigh Voltage Components Figure S-1. Pictorial DiagramOven Parts Electric PartsCabinet Parts Control Panel PartsPacking and Accessories SCREWS,NUTS and WashersInterchangeability↔ Oven and Cabinet Parts Control Panel Parts Door Parts Miscellaneous 210A

R-210A specifications

The Sharp R-210A is a notable microwave oven that stands out in the crowded kitchen appliance market. Renowned for its practicality and efficiency, this model is designed to cater to the needs of modern households while offering an array of advanced features.

One of the key highlights of the Sharp R-210A is its powerful 1000 watts of cooking power, which ensures quick cooking and reheating. With a range of cooking options, this microwave can handle various tasks from defrosting frozen foods to cooking meals evenly and efficiently. The unit boasts a 22-liter capacity, making it suitable for small to medium-sized kitchens. Its compact design allows for easy integration into different kitchen layouts without taking up excessive counter space.

The Sharp R-210A employs innovative technology to enhance cooking performance. It features a turntable system that ensures food is cooked uniformly by rotating dishes during the cooking cycle. This feature is particularly advantageous when heating large or unevenly shaped food items, as it helps prevent cold spots. Additionally, the microwave includes a convection option, bringing versatility to food preparation by combining microwave energy with convection heat to produce crispy results akin to traditional ovens.

User-friendliness is a hallmark of the Sharp R-210A, with an intuitive control panel that simplifies operation. The keypad is designed for easy navigation, allowing users to select cooking times and power levels quickly. It also includes pre-programmed settings for popular dishes, making meal preparation even more straightforward. The microwave features a timer and clock function, providing added convenience.

Safety is a crucial consideration in microwave design, and the Sharp R-210A does not disappoint. It comes equipped with a child lock feature to prevent accidental operation, making it a suitable choice for families. The unit also has an automatic shut-off feature that activates after cooking, reducing the risk of overheating or burning food.

In summary, the Sharp R-210A microwave oven combines robust power, innovative technology, and user-friendly features. With its ample capacity, intuitive controls, and safety measures, it continues to be a reliable choice for those looking to simplify their cooking experiences in the kitchen. Whether you're reheating leftovers or preparing a full meal, the Sharp R-210A is equipped to meet various culinary needs with ease and efficiency.
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