Sharp R-24AT, R-22AT service manual Blower Motor Removal, Stirrer Motors Upper and Lower Removal

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R-22AT

R-24AT

CAUTION:

1.DISCHARGE THE TWO HIGH VOLTAGE CAPACI- TORS BEFORE TOUCHING ANY OVEN COMPO- NENTS OR WIRING.

2.DO NOT REPLACE ONLY THE HIGH VOLTAGE RECTIFIER. IF IT IS DEFECTIVE, REPLACE THE

HIGH VOLTAGE RECTIFIER ASSEMBLY.

3.WHEN REPLACING THE HIGH VOLTAGE RECTI- FIER ASSEMBLY AND THE HIGH VOLTAGE CA- PACITOR, THE CATHODE (EARTH) SIDE TERMI- NAL OF THE HIGH VOLTAGE RECTIFIER MUST BE SECURED FIRMLY WITH A EARTHING SCREW.

BLOWER MOTOR REMOVAL

1.CARRY OUT 3D CHECKS.

2.Remove the rear cabinet, too.

3.Disconnect the wire leads from the blower motor and noise filter.

4.Remove the one (1) screw holding the blower motor angle to the oven cavity.

5.Remove the one (1) screw holding the blower motor angle to the chassis support.

6.Remove the one (1) screw holding the air duct to the blower motor.

7.Remove the four (4) screws holding the blower motor angle to the blower motor.

8.Now, the blower motor is free.

STIRRER MOTORS (UPPER AND LOWER) REMOVAL

UPPER

1.CARRY OUT 3D CHECKS.

2.Disconnect the wire leads from the stirrer motor (up- per).

3.Remove the one (1) screw holding the stirrer motor (upper) to the oven cavity.

4.Turn and lift up the stirrer motor (upper).

5.Now, the stirrer motor (upper) is free.

LOWER

1.Disconnect oven from the power supply.

2.Remove the stirrer motor cover by snipping off the

material in four portions.

3.Where the portions have been snipped off bend the portions flat. No sharp edge must be evident after removal of the stirrer motor cover.

4.Disconnect the wire leads from the stirrer motor (lower).

5.Remove the one (1) screw holding the stirrer motor (Lower) to the oven cavity.

6.Now, the stirrer motor (lower) is free.

7.After replacement use one (1) screw (XOTWW40P08000) to fit the stirrer motor cover.

HOW TO RELEASE THE POSITIVE LOCK® CONNECTOR.

Terminal

Procedure

 

1.

CARRY OUT 3D CHECKS.

Positive lock®

2.

Pushing the lever of positive lock® connector, pull down

connector

 

 

the connector from the terminal.

 

3.

Now, the connector is free.

 

1 Push

CAUTION: WHEN CONNECTING THE POSITIVE LOCK® CONNECTORS TO THE TERMI- NALS, CONNECT THE POSITIVE LOCK® CONNECTOR SO THAT THE LEVER FACES YOU.

Lever

2

Pull down

Figure C-2. How to release the positive lock connector.

OVEN LAMP AND LAMP SOCKET REMOVAL

1.CARRY OUT 3D CHECKS.

2.Remove the oven lamp.

3.Pull the wire leads from the oven lamp socket by pushing the terminal hole of the oven lamp socket with the small flat type screw driver.

4.Lift up the oven lamp socket .

5.Now, the oven lamp socket is free.

Oven lamp socket

Terminal

Wire lead

Terminal hole

Flat type small screw driver

Figure C-3. Oven lamp socket

TERMINAL INSULATOR REPLACEMENT

1.Open covers of the terminal insulator by using small flat type screw driver.

2.Remove the receptacle from the terminal insulator.

3.Now, the terminal insulator is free.

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Contents Table of Contents Commercial Microwave OvenRemember to Check 3D Remember to Check 4RSharp Corporation OSAKA, Japan Commercial Microwave Oven22AT/ R-24AT General Important InformationSpecification DescriptionThis Appliance Must be Earthed Brown LiveInstallation Information Display and IndicatorsAppearance View Auto Touch Control PanelOperation Sequence Idle ConditionMicrowave Cooking Condition Microwave Variable CookingTWO Magnetron Operation System Figure B-1. High Voltage CircuitFunction of Important Components Troubleshooting Guide Possible Cause and Defective Parts EEP ROM KEY Unit Touch Control Transformer T3Procedure Letter Component Test Magnetron Test Test ProceduresMicrowave Output Power 1 litre water load Power Test Procedures Letter Component TestMicrowave Output Power 2000 cc alternative method High Voltage Rectifier Assembly Test Carry OUT 3D Checks Switch TestCarry OUT 4R Checks Carry OUT 4R ChecksProcedure Letter Component Test Temperature Fuse TF1, TF2, TF3 TestWeak Point F3 Test Carry OUT 3D Checks Fuse F1, F2 F10A Test Carry OUT 3D ChecksTouch Control Panel Assembly Test Motor Winding TestNoise Filter Test High Voltage Fuse F4, F5 Test Carry OUT 3D ChecksKEY Unit Test Relay TestRY1 RY3Occurrence Cause or Correction Touch Control Panel Assembly Description of LSI LSIIXA222DRSignal to sound buzzer Signal synchronized with commercial power source frequencyInternal clock oscillation frequency setting input Power source voltageKey strobe signal Digit selection signalSound Voltage level control terminal Shapes of Electronic Components ServicingServicing of Touch Control Panel Servicing Tools Other PrecautionsPAD Order Display Phone Other Checking and Clearing PROCE- Dure for Procedure for Entering toDefrost Precautions for Using LEAD-FREE Solder SET Number Double Quantity Check SignalUsing lead-free wire solder Employing lead-free solderOuter CASE, Rear Cabinet and Power Supply Cord Removal Component Replacement and Adjustment ProcedureHigh Voltage Transformers Removal Magnetron Thermistor Replacement Re-installMagnetrons Removal RemovalHOW to Release the Positive Lock Connector Terminal Insulator ReplacementBlower Motor Removal Stirrer Motors Upper and Lower RemovalControl Panel Assembly and Control Unit Removal Power Supply Cord ReplacementControl Panel Assembly Removal HOW to Attach Membrane Switch and Graphic SheetAfter adjustment, make sure of the following Door Replacement and AdjustmentRemoval Choke Cover Removal Door DisassemblyDoor Components Removal Service Information Upper and Lower Latch Heads RemovalDoor Case Removal Door Glass RemovalMicrowave Measurement ProcedurePreparation Figure O-1 Oven Schematic-OFF Condition Figure O-3 Oven Schematic-Cooking Condition Figure S-1. Pictrorial Diagram PanelCircuit DG1Figure S-3. Printed Wiring Board Parts List Parts marked * are used in voltage more thanElectoric Parts Cabinet PartsOven Parts RH-IXA222DRZZ LSI RH-IXA298DRZZ EepromMiscellaneous Door PartsSCRE,NUTS and Washers Packing and Accessories HOW to Order Replacement PartsModel Number 2. REF. no Description Oven and Cabinet Parts Control Panel Parts Door Parts Miscellaneous
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R-22AT, R-24AT specifications

The Sharp R-24AT and R-22AT microwave ovens are advanced kitchen appliances designed to enhance cooking convenience, efficiency, and versatility. Both models incorporate innovative technologies and features that cater to modern cooking needs.

The Sharp R-24AT boasts a robust 900 watts of cooking power, enabling users to prepare a wide variety of meals quickly and effectively. Its spacious 24-liter capacity is suitable for families and those who enjoy entertaining. One of the standout features of the R-24AT is its intelligent sensor technology, which automatically detects humidity levels in the cooking food. This innovative feature ensures optimal cooking times and temperatures, resulting in perfectly cooked dishes without the guesswork.

Another key technology in the R-24AT is the inverter cooking system. This system provides a seamless flow of power throughout the cooking process, allowing for more precise temperature control. Unlike traditional microwaves that operate in full power or off, inverter technology ensures consistent heat, which is particularly beneficial for tasks such as defrosting, reheating, and simmering.

The Sharp R-22AT, while slightly more compact with a 22-liter capacity, also delivers impressive performance with 800 watts of power. It features a similar inverter cooking system that guarantees even cooking results. Both models come with multiple auto-cook presets, providing users with a selection of quick options for common dishes such as popcorn, pizza, and oatmeal. This feature streamlines meal preparation and reduces the time spent on planning meals.

In addition, the user-friendly control panel on both models includes a combination of push-button and rotary dial controls for easy navigation. The inclusion of a bright LED display further enhances usability, allowing cooks to monitor cooking times and settings easily.

Safety is another critical aspect of the Sharp R-24AT and R-22AT. Both models come equipped with a child lock feature, ensuring peace of mind in homes with young children. The stainless steel interiors of these microwaves facilitate easy cleaning, while their sleek design adds a modern touch to any kitchen.

In summary, the Sharp R-24AT and R-22AT microwave ovens stand out for their advanced cooking technologies, user-friendly features, and thoughtful design. They empower home cooks to prepare meals with precision and ease, making them a valuable addition to any kitchen.
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