Table of Contents
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R-206FW
BEFORE SERVICING ...................................................................................................... INSIDE FRONT COVER
WARNING TO SERVICE PERSONNEL ................................................................................................................ 1
MICROWAVE MEASUREMENT PROCEDURE ................................................................................................... 2
FOREWORD AND WARNING ............................................................................................................................... 3
PRODUCT SPECIFICATIONS .............................................................................................................................. 4
GENERAL INFORMATION ................................................................................................................................... 4
OPERATION .......................................................................................................................................................... 6
TROUBLESHOOTING GUIDE .............................................................................................................................. 9
TEST PROCEDURE ............................................................................................................................................ 10
TOUCH CONTROL PANEL ................................................................................................................................. 18
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ................................................................ 22
PICTORIAL DIAGRAM ........................................................................................................................................ 28
CONTROL PANEL CIRCUIT ............................................................................................................................... 29
PRINTED WIRING BOARD ................................................................................................................................. 30
PARTS LIST ........................................................................................................................................................ 30
PACKING AND ACCESSORIES ......................................................................................................................... 34
SHARP CORPORATION
SERVICE MANUAL
MODELS
In the interest of user-safety the oven should be restored to its original
condition and only parts identical to those specified should be used.
WARNING TO SERVICE PERSONNEL: Microwave ovens con-
tain circuitry capable of producing very high voltage and
current, contact with following parts may result in a severe,
possibly fatal, electrical shock. (High Voltage Capacitor, High
Voltage Power Transformer, Magnetron, High Voltage Recti-
fier Assembly, High Voltage Harness etc..)
TABLE OF CONTENTS
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
35
MICROWAVE OVEN
R-201FK/W
R-203FW
R-205FW
R-206FW
R-201FK/W
R-203FW
R-205FW
R-206FW
S1201R201FPW/
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Table of Contents
Related Manuals for Sharp R-203FW
Summarization of Contents
Microwave Exposure Precautions
Pre-Service Checks
Safety checks to perform before servicing the microwave oven to prevent exposure.
Service Personnel Safety Warnings
Service Pre-Operational Steps
Steps for service personnel before starting any work, including capacitor discharge.
Post-Testing Procedures
Steps to follow after completing diagnostic tests and repairs on the oven.
Post-Repair Procedures
Final steps for reassembling and verifying the oven after repairs are completed.
Microwave Leakage Measurement
Measurement Requirements
Specifications for microwave leakage limits and safety interlock switches.
Testing Preparation
Steps for preparing the oven and equipment before performing leakage tests.
Leakage Test Procedure
Detailed steps for conducting a closed-door microwave leakage test.
General Information
Grounding Instructions
Guidelines for proper grounding of the microwave oven for electrical safety.
Electrical Specifications
Details on voltage, frequency, and amperage requirements for the appliance.
Operation
Operating Sequence Description
Explanation of the sequence of component functions during oven operation.
Power Level Cooking Modes
Details on variable cooking power settings and their corresponding ON/OFF times.
Power Output Reduction Feature
Information on the oven's automatic power reduction for extended high-power cooking.
Troubleshooting and Testing
Troubleshooting Overview
General guidance and important notes for troubleshooting microwave oven issues.
Component Test Procedures
Detailed procedures for testing individual components like magnetron, transformer, and switches.
Touch Control Panel
Touch Control Panel Testing
Procedures for testing the touch control panel assembly, including key unit and control unit.
Key Unit Diagnostics
Specific steps to diagnose faults within the key unit of the touch control panel.
Component Replacement and Adjustment
High Voltage Safety Warnings
Critical safety warnings regarding high voltage components during servicing.
Wiring Safety Precautions
Precautions to prevent electric shock and ensure correct wiring connections.
Outer Case Removal
Step-by-step instructions for safely removing the outer casing of the microwave oven.
Wiring Diagrams
Pictorial Wiring Diagram
Visual representation of the oven's electrical connections and component layout.
Control Panel Circuit Diagram
Detailed schematic of the control panel's electronic circuitry and LSI functions.
Parts List
Electric Component Parts
List of electrical components for the microwave oven, including part numbers and codes.
Cabinet Component Parts
List of parts related to the oven's outer casing, frame, and external structure.
Control Panel Component Parts
List of parts for the oven's control panel, including the display and buttons.
Door Component Parts
List of parts associated with the microwave oven door assembly.
Miscellaneous Parts
List of miscellaneous items such as turntable, labels, and wire harnesses.
Fasteners and Washers
List of screws, nuts, and washers used in the assembly and repair of the oven.
Packing and Accessories
Packing Case Information
Details on the packing case used for the microwave oven models.
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