Sharp R-350J

R-350J
SHARP CORPORATION
SERVICE MANUAL
S8404R350JPJ/
MICROWAVE OVEN
MODEL
R-350J
In interests of user-safety the oven should be restored to its
original condition and only parts identical to those specified
should be used.
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 ................................................................................................ 5
SERVICING AND TROUBLESHOOTING GUIDE ............................................................................................ 6
TEST PROCEDURE ......................................................................................................................................... 8
TOUCH CONTROL PANEL ............................................................................................................................. 13
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ........................................................... 18
MICROWAVE MEASUREMENT .................................................................................................................... 23
WIRING DIAGRAM ......................................................................................................................................... 24
PICTORIAL DIAGRAM ................................................................................................................................... 25
POWER UNIT CIRCUIT .................................................................................................................................. 26
CPU UNIT CIRCUIT ........................................................................................................................................ 27
PRINTED WIRING BOARD .............................................................................................................................28
PARTS LIST ................................................................................................................................................... 29
EXPRESS MENUS
INFORMATION COOK
LEVEL
POWER
CLOCK
TIMER
DEFROST
EXPRESS
COOK
EXPRESS
MEAL
EXPRESS
DEFROST
EASY
PASTA
RICE/
VEGETABLES
HEALTHY MENU
MENU
REHEAT
MEALS
CONVENIENCE
HELP
MORE
LESS
CLEAR
STOP
START
INSTANT COOK
LOW FAT
MEALS
VEGETARIAN
MEALS

Sharp R-350J Specifications

General

Brand	Sharp
Model	R-350J
Category	Microwave Oven
Language	English

Summary

PRODUCT SPECIFICATIONS

GENERAL INFORMATION

CAUTION MICROWAVE RADIATION

Safety warning about exposure to microwave energy and conducting parts.

WARNING

Safety precautions to ensure before operating the oven.

FUNCTION OF IMPORTANT COMPONENTS

DOOR MECHANISMS AND SWITCHES

FUSES AND OVERHEAT PROTECTION

SERVICING AND TROUBLESHOOTING GUIDE

SERVICING GUIDELINES

General warnings and procedures for service personnel.

TROUBLESHOOTING GUIDE

Guide for diagnosing and resolving common operational problems.

TEST PROCEDURE

MAGNETRON AND MICROWAVE POWER TESTS

Procedures for testing magnetron and measuring microwave output power.

HIGH VOLTAGE COMPONENT TESTS

Tests for power transformer, rectifier, and capacitor.

SWITCH, FUSE, AND MOTOR TESTS

TOUCH CONTROL PANEL ASSEMBLY

TOUCH CONTROL PANEL ASSEMBLY TEST

Diagnosing issues with the touch control panel assembly.

KEY UNIT AND CONTROL UNIT TESTS

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE

EXTERNAL AND MAJOR COMPONENT REMOVAL

INTERNAL COMPONENT REMOVAL

MICROWAVE MEASUREMENT

POWER UNIT CIRCUIT

POWER UNIT CIRCUIT DIAGRAM

CPU UNIT CIRCUIT

CPU UNIT CIRCUIT DIAGRAM

PARTS LIST