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Sharp R-980E

Sharp R-980E
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R-980E
43
S5102R980EPJ/
CONVECTION
MICROWAVE OVEN
MODEL
R-980E
In interests of user-safety the oven should be restored to its original
condition and only parts identical to those specified should be used.
SERVICE MANUAL
SHARP CORPORATION
TABLE OF CONTENTS
Page
CAUTION, MICROWAVE RADIATION.............................................................................................................. 1
WARNING...........................................................................................................................................................1
PRODUCT SPECIFICATIONS .......................................................................................................................... 2
GENERAL INFORMATION.................................................................................................................................2
APPEARANCE VIEW ........................................................................................................................................ 3
OPERATION SEQUENCE................................................................................................................................. 4
FUNCTION OF IMPORTANT COMPONENTS ................................................................................................. 7
SERVICING ..................................................................................................................................................... 10
TEST PROCEDURE .........................................................................................................................................12
TOUCH CONTROL PANEL ASSEMBLY .........................................................................................................20
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ............................................................ 26
MICROWAVE MEASUREMENT ..................................................................................................................... 31
WIRING DIAGRAM .......................................................................................................................................... 32
PICTORIAL DIAGRAM .................................................................................................................................... 34
CONTROL PANEL CIRCUIT ............................................................................................................................ 35
PRINTED WIRING BOARD ..............................................................................................................................36
PARTS LIST .................................................................................................................................................... 37
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Sharp R-980E Specifications

General IconGeneral
Power Output900 W
Control TypeElectronic
TurntableYes
Grill Power1000 W
DisplayDigital
Voltage230 V
Frequency50 Hz
TypeMicrowave Oven
Turntable Diameter315 mm

Summary

General Important Information

Microwave Radiation Safety

Warning about potential exposure to microwave energy during operation.

Operational Safety Warnings

Precautions for door closure and oven condition before operation.

Product Specifications

Function of Important Components

Thermal Protection and High Voltage Components

Details on thermal cut-outs, fuses, and HV rectifier.

Servicing and Troubleshooting

Service Personnel Safety

Warnings and precautions for handling the appliance during service.

Troubleshooting Common Issues

Guide to diagnose and resolve operational problems.

Component Tests: Magnetron and Power Measurement

Magnetron Electrical Tests

Procedure to test the magnetron's electrical integrity.

Microwave Output Power Measurement

Method to measure the oven's microwave power output.

Component Tests: Transformer and Rectifiers

Power Transformer and Rectifier Assembly Tests

Checking transformer windings and HV rectifier functionality.

Component Tests: Capacitors, Fuses, Switches, and Filters

Component Tests: Control Panel

AH Sensor and Control Unit Diagnosis

Servicing Precautions

Handling Electronic Components

Guidelines for handling sensitive components like CMOS LSI.

Component Replacement Procedures

Component Replacement Procedures (Continued)

Door Disassembly and Adjustment

Microwave Measurement

Leakage Measurement Procedure

How to measure microwave radiation leakage using a survey meter.

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