Sharp R-1480, R-1482 Magnetron Removal, High Voltage Rectifier and High Voltage Capacitor Removal

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R-1480

R-1481

R-1482

hood duct.

10.Remove the two (2) unit mounting screws from the chassis support (right side) and the hood duct (left side).

11.Remove the one (1) screw holding the chassis support. 12.Remove the chassis support.

13.Remove the hood duct from the oven cavity by lifting it up 14.Screw the oven lamp off from the lamp socket. 15.Remove the lamp socket from the lamp angle.

16.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.

17.Now, the oven lamp socket and the hood duct are free.

Oven lamp socket

Terminal

Wire lead

Terminal hole

Flate type small screw driver

MAGNETRON 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, and release them from the holes of hood duct.

5.Remove the one (1) screw holding the hood duct to the oven cavity front plate, and lift up the fan motor side of the hood duct.

6.Remove the one (1) screw holding the capacitor holder to the hood intake duct.

7.Disconnect the high voltage wire leads of the high voltage rectifier assembly from the magnetron.

8.Disconnect the filament lead of the transformer from the magnetron.

9.Remove the power transformer from the right base plate, referring to "POWER TRANSFORMER REMOVAL".

10.Carefully remove four (4) mounting screws holding the magnetron to waveguide. When removing the screws hold the magnetron to prevent it from falling.

11.Remove the magnetron from the unit with care so the magnetron tube should not be hit by any metal object around the tube.

CAUTION: WHEN REPLACING THE MAGNETRON, BE SURE THE R.F. GASKET IS IN PLACE AND MOUNTING SCREWS ARE TIGHTENED SE- CURELY.

HIGH VOLTAGE RECTIFIER AND HIGH VOLTAGE CAPACITOR 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, and release them from the holes of hood duct.

5.Remove the one (1) screw holding the hood duct to the oven cavity front flange, and lift up the fan motor side of the hood duct.

6.Disconnect the high voltage wire leads with high voltage rectifier from the magnetron.

7.Disconnect filament lead of the transformer from high

voltage capacitor.

8.Disconnect high voltage wire from capacitor.

9.Remove one (1) screw holding capacitor holder and high voltage rectifier to the hood intake duct.

10.Disconnect the high voltage rectifier assembly from the high voltage capacitor.

11.Now, the high voltage rectifier assembly is free. 12.Remove capacitor from the holder.

13.Now, the high voltage capacitor is free.

CAUTION: WHEN REPLACING THE HIGH VOLTAGE RECTIFIER ASSEMBLY, THE GROUND SIDE TERMINAL MUST BE SECURED FIRMLY WITH A GROUNDING SCREW.

HOOD FAN THERMAL CUT-OUT 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.Disconnect the wire leads from the hood fan thermal

cut-out.

5.Remove one (1) screw holding the thermal cut-out to the right base plate.

6.Remove the hood fan thermal cut-out from the right base plate.

7.Now, the hood fan thermal cut-out is free.

THERMAL CUT-OUT (CAVITY) 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.

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Contents Table of Contents Over the Range Microwave OvenBefore Servicing When the testing is completed Dont Touch Before ServicingMicrowave Measurement Procedure RequirementsLeakage test 1480 / R-1481 / R-1482 Sharp PLAZA, MahwahOver the Range Microwave Oven ForewordDescription Product SpecificationGeneral Information Grounding InstructionsOven Diagram OFF Condition OperationDescription of Operating Sequence Cooking ConditionPower Level P-0 to P-90 Cooking Compu CookCompu Defrost Cooking AIR Flow Ventilation Methods HOT AIR ExhaustVertical Venting Horizontal VentingFigure O-1. Oven Schematic-Off Condition Description and Function of Components Troubleshooting Guide Stirrer MotorHood Lamp Possible Case Defective Parts Microwave Output Power Test ProceduresProcedure Letter Component Test Magnetron Assembly Test Power Transformer TestHigh Voltage Rectifier Test Procedure Letter Component TestMagnetron Temperature Fuse Test High Voltage Capacitor TestMonitor Switch Test Secondary Interlock Switch TestPrimary Interlock System Test Door Sensing Switch Primary Interlock Relay RY2Blown Monitor Fuse Test Hood Thermal CUT-OUT TestHood FAN Motor Test Touch Control Panel Assembly Test Before testingWHT 3 KEY Unit Test Foil Pattern on the Printed Wiring Board Test Procedure Letter Component Test Relay TestWeight 1ST Stage 2ND Stage 3RD Stage 4TH Stage Level Time Compu Defrost TestProcedure Component Test Letter Occurrence Cause or CorrectionSteps Occurrence Cause or Correction Touch Control Panel Assembly Description of LSI LSIIZA876DRSignal similar to P27 Signal to sound buzzerSignal coming from touch key Digit selection signalSegment data signals Segment data signalKey strobe signal Shapes of Electronic Components Other PrecautionsServicing Servicing of Touch Control PanelComponent Replacement and Adjustment Procedure Hood Exhaust Louver RemovalOuter Case Removal Power Transformer RemovalRe-install Hood FAN MOTOR, Hood Duct and Oven Lamp Socket RemovalHood FAN Thermal CUT-OUT Removal Magnetron RemovalHigh Voltage Rectifier and High Voltage Capacitor Removal Thermal CUT-OUT Cavity RemovalTemperature Fuse Magnetron Removal Cooling FAN Motor RemovalRear View Turntable Motor Removal Stirrer Cover and Stirrer FAN InstallationControl Panel ASSEMBLY, Control Unit and KEY Unit Removal Stirrer Motor RemovalPositive Lock Connector NO-CASE Type Removal Positive lock connectorStep Door Assembly Removal Door ReplacementAfter adjustment, check the following Door Assembly RE-INSTALLChoke Cover Door DisassemblyAfter any servicing, make sure of the following Door FrameFigure S-1. Pictorial Diagram Circuit DIP BFBElectric Parts Parts ListParts marked * are used in voltage more than Cabinet PartsOven Parts Door PartsSCREWS,NUTS and Washers HOW to Order Replacement PartsMiscellaneous Model NumberOven and Cabinet Parts Control Panel Parts Door Parts Miscellaneous Packing and Accessories Copyright 1998 by Sharp Corporation ALL Rights Reserved

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.
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