Sharp R-1482, R-1480 Temperature Fuse Magnetron Removal, Cooling FAN Motor Removal, Rear View

Page 31

3.Discharge high voltage capacitor.

4.Remove two (2) unit mounting screws.

5.Remove the hood duct. (Refer to the procedure of "

HOOD FAN MOTOR, HOOD DUCT AND OVEN LAMP SOCKET REMOVAL".

6.Straighten the tab holding the thermal cut-out to the top plate of the oven cavity.

7 . Release the thermal cut-out (cavity) from the one slit of the oven cavity top plate.

8.Disconnect the wire leads from the thermal cut-out (cavity).

9.Now, the thermal cut-out (cavity) is free.

R-1480

R-1481

R-1482

NOTE: When the tab is broken or turned off, use the another tab which is fixed near the slit when the new thermal cut-out is replaced.

Top of Oven Cavity

Tab

Thermal

Cut-Out

Waveguide

Slit

Thermal

Cut-Out

(Cavity)

Thermal

Cut-Out

Tab

TEMPERATURE FUSE (MAGNETRON) REMOVAL

1.Disconnect the power supply cord and remove the oven from wall and remove outer case. (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal")

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.Remove the hood fan motor and the hood duct from the oven cavity, referring to the procedure of " HOOD FAN

MOTOR, HOOD DUCT AND OVEN LAMP SOCKET REMOVAL".

5.Disconnect the wire leads from the temperature fuse (Magnetron).

6.Remove the one (1) screw holding the temperature fuse (Magnetron) to the oven cavity.

7.Now, the temperature fuse (Magnetron) is free.

COOLING FAN MOTOR REMOVAL

1.Disconnect the power supply cord, remove the oven from wall and remove outer case (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal".)

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.Disconnect the wire leads from the fan motor and the chassis support.

5.Remove one (1) screw holding the hood duct to oven cavity.

6.Release the wire leads from the hole of the hood duct.

7.Lift up the fan motor side of the hood duct.

8.Remove the two (2) screws holding the fan motor to the hood duct.

9.Remove the fan blade from the fan motor shaft according the following procedure.

10.Hold the edge of the rotor of the fan motor by using a pair of groove joint pliers.

CAUTION:

*Make sure that any pieces do not enter the gap between the rotor and the stator of the fan motor because the rotor is easily shaven by pliers and metal pieces may be produced.

*Do not touch the pliers to the coil of the fan motor because the coil may be cut or injured.

*Do not disfigure the bracket by touching with the pliers.

11.Remove the fan blade from the shaft of the fan motor by pulling and rotating the fan blade with your hand.

12.Now, the fan blade will be free.

CAUTION:

* Do not reuse the removed fan blade because the hole (for shaft) may be larger than normal.

13.Now, the fan motor is free.

Rear View

Coil

Groove joint pliers

Stator

 

Gap

 

Bracket Rotor

Side View

 

Shaft

These are the positions

Axis

that should be pinched

Stator

with pliers

 

Rotor

 

INSTALLATION

 

1.Install the fan blade to the fan motor shaft according to the following procedure.

2.Hold the center of the bracket which supports the shaft of the fan motor on the flat table.

3.Apply the screw lock tight into the hole (for shaft) of the fan blade.

4.Install the fan blade to the shaft of fan motor by pushing the fan blade with a small, light weight, ball peen hammer or rubber mallet.

5.Install the fan motor to the hood duct with the two (2) screws.

CAUTION:

* Do not hit the fan blade strongly when installing because the bracket may be disfigured.

* Make sure that the fan blade rotates smooth after installation.

* Make sure that the axis of the shaft is not slanted.

29

Page 30 Page 32
Image 31
Page 30 Page 32
Contents Over the Range Microwave Oven Table of ContentsBefore Servicing Dont Touch Before Servicing When the testing is completedRequirements Microwave Measurement ProcedureLeakage test Foreword Sharp PLAZA, MahwahOver the Range Microwave Oven 1480 / R-1481 / R-1482Grounding Instructions Product SpecificationGeneral Information DescriptionOven Diagram Cooking Condition OperationDescription of Operating Sequence OFF ConditionCompu Cook Power Level P-0 to P-90 CookingCompu Defrost Cooking Horizontal Venting Ventilation Methods HOT AIR ExhaustVertical Venting AIR FlowFigure O-1. Oven Schematic-Off Condition Description and Function of Components Stirrer Motor Troubleshooting GuideHood Lamp Possible Case Defective Parts Power Transformer Test Test ProceduresProcedure Letter Component Test Magnetron Assembly Test Microwave Output PowerHigh Voltage Capacitor Test Procedure Letter Component TestMagnetron Temperature Fuse Test High Voltage Rectifier TestPrimary Interlock Relay RY2 Secondary Interlock Switch TestPrimary Interlock System Test Door Sensing Switch Monitor Switch TestHood Thermal CUT-OUT Test Blown Monitor Fuse TestHood FAN Motor Test Before testing Touch Control Panel Assembly TestWHT 3 KEY Unit Test Compu Defrost Test Procedure Letter Component Test Relay TestWeight 1ST Stage 2ND Stage 3RD Stage 4TH Stage Level Time Foil Pattern on the Printed Wiring Board TestOccurrence Cause or Correction Procedure Component Test LetterSteps Occurrence Cause or Correction Touch Control Panel Assembly LSIIZA876DR Description of LSIDigit selection signal Signal to sound buzzerSignal coming from touch key Signal similar to P27Segment data signal Segment data signalsKey strobe signal Servicing of Touch Control Panel Other PrecautionsServicing Shapes of Electronic ComponentsHood Exhaust Louver Removal Component Replacement and Adjustment ProcedureHood FAN MOTOR, Hood Duct and Oven Lamp Socket Removal Power Transformer RemovalRe-install Outer Case RemovalThermal CUT-OUT Cavity Removal Magnetron RemovalHigh Voltage Rectifier and High Voltage Capacitor Removal Hood FAN Thermal CUT-OUT RemovalCooling FAN Motor Removal Temperature Fuse Magnetron RemovalRear View Stirrer Motor Removal Stirrer Cover and Stirrer FAN InstallationControl Panel ASSEMBLY, Control Unit and KEY Unit Removal Turntable Motor RemovalPositive lock connector Positive Lock Connector NO-CASE Type RemovalStep Door Assembly RE-INSTALL Door ReplacementAfter adjustment, check the following Door Assembly RemovalDoor Frame Door DisassemblyAfter any servicing, make sure of the following Choke CoverFigure S-1. Pictorial Diagram Circuit BFB DIPCabinet Parts Parts ListParts marked * are used in voltage more than Electric PartsDoor Parts Oven PartsModel Number HOW to Order Replacement PartsMiscellaneous SCREWS,NUTS and WashersOven and Cabinet Parts Control Panel Parts Door Parts Miscellaneous Copyright 1998 by Sharp Corporation ALL Rights Reserved Packing and Accessories

R-1481, R-1482, R-1480 specifications

Sharp R-1480, R-1481, and R-1482 are popular countertop microwave ovens that exemplify innovation in home cooking technology. These models are designed to cater to modern culinary needs, combining functionality, efficiency, and user-friendly features.

The Sharp R-1480 stands out with its powerful 900 watts of cooking power, ensuring that meals are cooked evenly and thoroughly. This model includes a spacious 1.5 cubic feet capacity, allowing users to cook larger dishes without hassle. One of the most striking features of the R-1480 is its advanced Sensor Cooking technology. This intelligent feature automatically adjusts cooking time and power levels based on the type of food being prepared, delivering optimal results with minimal effort.

The R-1481 model shares many similarities with the R-1480 but introduces additional features that enhance convenience and usability. It also boasts a 900-watt power output and a 1.5 cubic feet interior. What sets the R-1481 apart is its impressive variety of pre-programmed settings. These settings simplify cooking tasks, giving users one-touch access to options for popular foods such as popcorn, pizza, and frozen vegetables. The auto defrost function is another advantage, allowing for quick thawing of meats and seafood based on weight.

Meanwhile, the Sharp R-1482 takes the features of the R-1481 a step further, adding a few unique characteristics. This model incorporates both microwave and grill functionality, allowing for versatile cooking options. Users can enjoy the benefits of grilling their favorite dishes for a perfect finish and flavor infusion. The R-1482 also includes a user-friendly control panel with a large LCD display, ensuring easy navigation through the cooking process.

Across these models, Sharp emphasizes safety and ease of use. The child lock feature provides peace of mind for families, while the easy-to-clean stainless steel interior promotes hygiene and longevity. All models include a turntable for even cooking and reheating, making it easier to prepare meals uniformly.

In conclusion, the Sharp R-1480, R-1481, and R-1482 microwave ovens combine advanced technology with practical features, catering to a diverse range of cooking needs. These models stand as a testament to Sharp’s commitment to quality and innovation in the kitchen, making them excellent choices for anyone seeking efficiency and versatility in their cooking appliances.
Top Page Image Contents