Sharp R-210A Timer Motor with VARI-SWITCH Test, Timer SWITCH- Contacts, High Voltage Fuse Test

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R-210A

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

If the fuse 13A is blown by incorrect door switching replace the defective switch(es) and the fuse 13A.

If the fuse 13A is blown, there is a shorts or grounds in electrical parts or wire harness. Check them and replace the defective parts or repair the wire harness.

CARRY OUT 4R CHECKS.

CAUTION: Only replace fuse with the correct value replacement.

ITIMER MOTOR (WITH VARI-SWITCH) TEST

6

CARRY OUT 3D CHECKS before any of the following timer tests.

1

3

M

Vari switch

5

2

4

Timer motor with Vari-Switch

TIMER SWITCH- CONTACTS

Disconnect the leads from terminals described at following table. Connect an ohmmeter across terminals described at following table.

Advance the timer and check that a short circuit reading is obtained on the meter.

Turn the timer back to the zero (0) position and check that an open circuit reading is obtained on the meter. If these readings are not obtained then replace the timer.

Disconnecting and checking terminals

1 and 2

TIMER - MOTOR

Disconnect the leads from terminals described at following table. Connect an ohmmeter across the timer motor winding, terminals are described at following table, and check that a reading of resistance described at following table is indicated.

If this reading is not obtained then the timer is probably defective and should be replaced.

 

Disconnecting and checking terminals

5 and 6

 

 

 

 

Resistance of motor winding

approximately 11.3 kΩ

 

 

 

CARRY OUT 4R CHECKS after any of the above tests.

 

JNOISE FILTER TEST CARRY OUT 3D CHECKS.

Disconnect the leads from the terminals of the noise filter. Using an ohmmeter, check between the terminals as described in the following table.

MEASURING POINT

INDICATION OF OHMMETER

 

 

Between IN1 and IN2

Approx. 180 kΩ

 

 

Between terminal N and WHITE

Short circuit

 

 

Between terminal L and RED

Short circuit

 

 

If incorrect readings are obtained, replace the noise filter unit.

IN1

NOISE FILTER

 

IN2

 

FUSE 13A

LINE CROSS CAPACITOR 0.22∝/ AC125V

VARISTOR 15G / 270 V

DISCHARGE RESISTOR 180 kΩ / 0.5 W

NOISE SUPPRESSION COIL

 

 

 

 

 

 

LINE BYPASS CAPACITOR

 

LINE BYPASS CAPACITOR

0.0022∝/AC250V

 

0.0022∝/AC250V

AC1

 

 

 

AC2

 

CARRY OUT 4R CHECKS.

KHIGH VOLTAGE FUSE TEST

CARRY OUT 3D CHECKS.

If the high voltage fuse is blown, there could be a short in the high voltage rectifier or the magnetron. Check them and replace the defective parts and the high voltage fuse.

CARRY OUT 4R CHECKS.

CAUTION: ONLY REPLACE HIGH VOLTAGE FUSE WITH THE CORRECT VALUE REPLACEMENT.

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Contents Table of Contents Model R-210A210A 210A Sharp Corporation OSAKA, JapanMicrowave Oven General Important InformationMedium LOW/ Defrost SpecificationThis Appliance Must be Earthed Appearance View Control PanelMicrowave Cooking Condition Operation SequenceOFF Condition Medium HIGH, MEDIUM, Medium LOW, LOW CookingFunction of Important Components Remember to Check 3D Troubleshooting GuideServicing Remember to Check 4RProblem Troubleshooting ChartTest Procedure Possible Cause Defective Parts C D E E E F F I I I G G HJ KTest Procedures Letter Component Test Magnetron Test Microwave Output Power IECΔT1 Test Procedures Component Test LetterMicrowave Output Power 2 Litre water load Carry OUT 4R Checks Test Procedures Letter Component TestPower Transformer Test High Voltage Rectifier Test Carry OUT 3D ChecksMotor Winding Test Carry OUT 3D Checks Switch TestTemperature Fuse or Thermal CUT-OUT Test Fuse 13ATimer Motor Timer Motor with VARI-SWITCH TestTimer SWITCH- Contacts Noise Filter Test Carry OUT 3D ChecksOuter Case Removal Component Replacement and Adjustment ProcedurePower Transformer Removal To prevent an electric shock, take the followingRe-install Magnetron ReplacementPositive Lock Connector Removal Oven Lamp Socket RemovalFAN Motor Replacement Power Supply Cord ReplacementTurntable Motor Replacement RemovalControl Panel Assembly and Switch LE- VER Removal Control Panel Assembly and Switch Lever RemovalInstallation Rear ViewRE-INSTALL Door ReplacementAfter adjustment, make sure of the following Installation Sealer FilmRequirement Preparation for TestingMicrowave Measurement Holaday HI Simpson 380MOven Schematic-ON Condition Oven Schematic-OFF ConditionFigure S-1. Pictorial Diagram High Voltage ComponentsControl Panel Parts Electric PartsCabinet Parts Oven PartsInterchangeability↔ Packing and AccessoriesSCREWS,NUTS and Washers 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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