Sharp R-450C

R-450C
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 ...................................................................................................................................................... 6
TEST PROCEDURE ......................................................................................................................................... 8
TOUCH CONTROL PANEL ............................................................................................................................. 14
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ........................................................... 18
MICROWAVE MEASUREMENT .................................................................................................................... 24
WIRING DIAGRAM ......................................................................................................................................... 25
PICTORIAL DIAGRAM ................................................................................................................................... 26
POWER UNIT CIRCUIT .................................................................................................................................. 27
CPU UNIT CIRCUIT ........................................................................................................................................ 30
PRINTED WIRING BOARD ............................................................................................................................. 30
PARTS LIST ................................................................................................................................................... 32
S7906R450CPJ/
MICROWAVE OVEN
MODEL R-450C
In interests of user-safety the oven should be restored to its original
condition and only parts identical to those specified should be used.
SHARP CORPORATION
SERVICE MANUAL
Info Display
DINNER
PLATE
PASTA MEAL
FROZEN DINNER
CASSEROLE
SOUP
PIZZA
VEGETABLES
MEAT
POWER
LEVEL
LESS MORE
STOP
CLEAR
INSTANT COOK
START
CLOCK TIMER
RICE/PASTA
EASY DEFROST
BEVERAGE
PIE
CONVENIENCE MEALS
REHEAT MENU
1 2 3 4 5
6 7 8 9
0
HELP
SENSOR DEFROST COOK
HELP

Sharp R-450C Specifications

General

Brand	Sharp
Model	R-450C
Category	Microwave Oven
Language	English

Summary

General Important Information

Product Specifications

Appearance View

Operation Sequence

Function of Important Components

Servicing

Troubleshooting Guide

Guide for diagnosing and resolving operational issues.

Test Procedures

Component Test

Procedures for testing individual components for proper function.

Touch Control Panel Assembly

Component Replacement and Adjustment Procedure

Microwave Measurement

Schematic

Figure O-1. Oven Schematic-OFF Condition

Electrical schematic showing the oven in OFF condition.

Figure O-2. Oven Schematic-Cooking Condition

Electrical schematic showing the oven in COOKING condition.

Figure S-1. Pictorial Diagram

Figure S-2. Power unitl Circuit

Figure S3. CPU. Unit Circuit

Figure S-4. Indicator Circuit

Parts List

Oven and Cabinet Parts

Control Panel Parts

Door Parts

Exploded view and part identification for door components.

Miscellaneous

Identification of miscellaneous parts for assembly.