Sharp R-480J Sealer Film, After any service, make sure of the following, Installation

Page 29

door panel upward.

5.Hold the door panel to the door frame with three (3) screws.

6.Re-install the latch spring to the latch head. Re-install the latch spring to the door frame. Re-install latch head to door frame.

7.Re-install choke cover to door panel by pushing.

8.Catch two (2) pins of door panel on two (2) hole of upper and lower oven hinges as shown Figure C-7.

9.Re-install the door stopper to the door assembly.

Note: After any service to the door;

(A)Make sure that 2nd. interlock relay control switch, 1st. latch switch and monitor switch are operating properly. (Refer to chapter “Test Procedures”.).

(B)An approved microwave survey meter should be used to assure compliance with proper microwave radiation emission limitation standards.

After any service, make sure of the following :

1.Door latch heads smoothly catch latch hook through latch holes and that latch head goes through center of latch hole.

2.Deviation of door alignment from horizontal line of cavity face plate is to be less than 1.0mm.

3.Door is positioned with its face pressed toward cavity face plate.

4.Check for microwave leakage around door with an approved microwave survey meter. (Refer to Microwave Measurement Procedure.)

Note: The door on a microwave oven is designed to act as an electronic seal preventing the leakage of microwave energy from oven cavity during cook cycle. This function does not require that door be air-tight, moisture (condensation)-tight or light- tight. Therefore, occasional appearance of moisture, light or sensing of gentle warm air movement around oven door is not abnormal and do not of themselves, indicate a leakage of microwave energy from oven cavity.

R-480J

Pin

Upper oven hinge

Door

assembly Door stopper

Lower oven hinge

Choke cover

Lower

Pin oven hinge

Figure C-7. Door Replacement

SEALER FILM

Installation

1.Put the adhesive tape on the backing film of the sealer film as shown in Fig. C-8.

2.Tear the backing film by pulling the adhesive tape.

3.Put the pasted side of the sealer film on the door panel.

Sealer film

Backing film

Adhesive tape

Figure C-8. Sealer film

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Contents Microwave Oven Model R-480J Table of Contents480J Microwave Oven Sharp Corporation OSAKA, Japan480J General Important InformationGeneral Information Product SpecificationsDescription This Appliance Must be EarthedTouch Control Panel Appearance ViewOFF Condition Operation SequenceMicrowave Cooking Condition Variable CookingSensor Instant Reheat Power Output ReductionCooking Sequence Function of Important Components Servicing Troubleshooting GuideRemember to Check 3D Remember to Check 4RProblem Test Procedure Possible Cause Defective PartsMicrowave Output Power 1 litre water load Test ProceduresProcedure Component Test Letter Magnetron Test Power Transformer Test Test Procedures Letter Component TestHigh Voltage Rectifier Assembly Test High Voltage Capacitor TestSwitch Test Procedure Component Test LetterNoise Filter Test Carry OUT 3D Checks Thermal CUT-OUT TestHigh Voltage Fuse Test Touch Control Panel Assembly TestBlown Fuse F10A Carry OUT 3D Checks Relay Test KEY Unit TestOmif Carry OUT 3D Checks Steps Occurrence Cause or CorrectionAH Sensor Test Checking the initial sensor cooking conditionTesting Method for AH Sensor AND/OR Control Unit Test Procedures LetterChecking Control Unit Sensor Dummy Resistor CircuitIndicator Circuit Reset CircuitPower Source Circuit Synchronizing Signal CircuitLSI Signal coming from touch key Pin No Signal DescriptionSignal similar to P17 Power source voltage GND0VCommon data signal COM7 Common data signal COM8Common data signal COM6 Common data signal COM5Structure of Absolute Humidity Sensor Absolute Humidity Sensor CircuitTouch Control Panel Servicing Other PrecautionsShapes of Electronic Components Servicing of Touch Control PanelOuter Case Removal Component Replacement and Adjustment ProcedurePower Transformer Removal HOW to RE-INSTALL the Turntable Motor Cover Positive Lock Connector NO-CASE Type RemovalMagnetron Removal Turntable Motor RemovalCPU Unit and Power Unit Control Panel Assembly RemovalInstallation Oven Lamp and Lamp Socket RemovalAfter adjustment, check the following Power Supply Cord ReplacementRear View Side ViewRE-INSTALL Door ReplacementRemoval View back side of door frameSealer Film After any service, make sure of the followingInstallation Microwave Measurement Preparation for TestingRequirement Holaday HI Simpson 380MFigure O-1. Oven Schematic-OFF Condition High Voltage Components Figure S-1. Pictorial DiagramFigure S-2. Power unitl Circuit FigureS3.CPU UnitZD1 SP1 VRB RY2 CN CCN a CN D D10 RY1 RY3 TTMParts List Miscellaneous Packing and AccessoriesSCREWS, Nuts and Washers Not replaceable items84-21 Control Panel Parts Door Parts Miscellaneous Copyright 2004 by Sharp Corporation ALL Rights Reserved

R-480J specifications

The Sharp R-480J is a notable microwave oven that combines advanced technology with practical design, catering to both everyday cooking needs and more complex culinary tasks. This model is designed for consumers seeking reliability and efficiency in their kitchen appliances.

One of the standout features of the Sharp R-480J is its powerful 900-watt output. This high wattage allows for faster cooking times, making meal preparation a breeze. The microwave also offers multiple power levels, which provides the user with the flexibility to cook a variety of dishes. Whether you are reheating leftovers, defrosting meats, or cooking fresh vegetables, the R-480J delivers consistent and thorough results.

The microwave is equipped with a spacious interior, accommodating larger dishes with ease. Its turntable design ensures even cooking by allowing food to rotate during the cooking process. This feature minimizes cold spots in the food, ensuring that meals are heated uniformly.

User-friendliness is a key aspect of the Sharp R-480J. The appliance comes with an intuitive control panel featuring pre-programmed settings for common food items such as popcorn, pizza, and dinner plates, making it easy for users to select the right cooking time and power level with just a few button presses. Additionally, the digital display shows cooking times and power levels clearly, enhancing the overall cooking experience.

The R-480J also incorporates advanced sensor cooking technology. This innovative feature detects humidity levels emitted by food and adjusts cooking time accordingly. This means users can achieve perfect results without constantly monitoring the microwave, allowing for greater convenience and efficiency in daily cooking.

Moreover, the microwave's sleek and modern design fits well into various kitchen aesthetics. Its easy-to-clean surfaces minimize maintenance efforts, while the compact build allows it to be placed in smaller kitchens without taking up too much space.

In conclusion, the Sharp R-480J microwave oven stands out for its powerful performance, user-friendly features, and practical design. Its combination of high wattage, multiple power levels, and sensor cooking technology makes it a versatile appliance for any kitchen. Whether tackling daily meals or experimenting with new recipes, the R-480J is equipped to meet diverse cooking needs with ease and efficiency.
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