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Sharp R-9H10

Sharp R-9H10
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R-9HlO
SHARP SERVICE MANUAL
S9808R9Hl OJ//
CONVECTION
MICROWAVE OVEN
In interests of user-safety the oven should be resto!ed to its original
condition and only parts identical to those specified should be used.
(RD161OlU)
TABLE OF CONTENTS
Page
FOREWORD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..*....*...............................................................................
1
CAUTION, MICROWAVE RADIATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..~.............................................
1
PRODUCT DESCRIPTION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL INFORMATION
..............................................................
OPERATING INSUTRACTIONS
......................................................
OPERATION
.......................................................................................
SERVICING
........................................................................................
TOUCH CONTROL PANEL ASSEMBLY
........................................
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDl
J
MICROWAVE MEASUREMENT PROCEDURE
.............................
...............................................................
3
............................................................... 3
............................................................... 4
............................................................
11
............................................................ 22
RE
.....................................................
31
............................................................ 37
PICTORIAL
DIAGRAM
..................................................................................................................................
38
CONTROL PANEL CIRCUIT
.........................................................................................................................
39
PRINTED WIRING BOARD
..........................................................................................................................
40
PARTS LIST
....................................................................................................................................................
41
PACKING AND ACCESSORIES
...................................................................................................................
46
SHARPCORPORATION

Table of Contents

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Sharp R-9H10 Specifications

General IconGeneral
BrandSharp
ModelR-9H10
CategoryMicrowave Oven
LanguageEnglish

Summary

PRODUCT DESCRIPTION

Product Specifications

Detailed technical specifications including power, dimensions, and control features.

GENERAL INFORMATION

OPERATING INSTRUCTIONS

Control Panel Operation

Explanation of touch pads, their functions, and basic operation sequences.

OPERATION

Operating Sequence Description

Details the sequence of component functions during oven operation.

Off Condition Operation

Describes the state and initial actions when the oven is plugged in and the door is closed.

Cooking Conditions

Explains the operational sequences for High cooking and other microwave power levels.

CONVECTION COOKING CONDITION

Convection Preheating Condition

Details the process and component actions during the preheating phase.

Convection Cooking Process

Describes the sequence of operations for convection cooking after preheating.

Automatic Mix Cooking Mode

Explains the process for combined convection and microwave cooking.

SENSOR COOKING CONDITION

Compu Cook Mode

Describes automatic computation of time and temperature for cooking.

Easy Defrost Cooking Mode

Details the special function for faster and better meat/poultry defrosting.

DESCRIPTION AND FUNCTION OF COMPONENTS

Thermistor Functionality

Explains the role of the thermistor in temperature detection for the convection heater.

Oven Thermal Cut-Out Protection

Describes the safety device preventing overheating of the convection heater.

Monitor Switch Operation

Explains the function of the monitor switch in relation to door interlocks and fuse blowing.

Door Latch Switch Mechanisms

Details the function of upper and lower latch switches for door interlock.

Convection Heater System

Explains how the convection heater heats air circulated by the fan.

CONVECTION COOKING SYSTEM

Damper Motor Operation

Explains how the damper motor controls the damper door position during cooking modes.

Damper Mechanism Details

Describes the components and operation of the damper open-close mechanism.

SERVICING

Troubleshooting Guide

Provides a systematic approach to diagnosing and resolving oven issues.

TEST PROCEDURES

Magnetron Assembly Testing

Procedures for testing the magnetron for open filament or shorts.

Power Transformer and Rectifier Tests

Steps to measure transformer coil resistance and check continuity.

High Voltage Capacitor and Switch Testing

Steps to check the high voltage capacitor and test switch contacts.

Thermal Controls and Component Tests

Procedures for testing thermal cut-outs, heaters, and thermistors.

Control Panel and Sensor Testing

Procedures for testing the touch control panel, sensors, and control unit.

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE

Outer Case and Panel Removal

Step-by-step guide to remove the outer cabinet and control panel for servicing.

Power Transformer and Rectifier Replacement

Instructions for removing and reinstalling the power transformer and rectifier assemblies.

Magnetron and Motor Component Replacement

Procedures for removing magnetron, cooling fan motor, convection motor, and damper assembly.

Door and Latch Switch Replacement

Steps for replacing the oven lamp, door interlock switches, and door assembly.

Control Panel and Door Disassembly

Instructions for removing the control panel assembly and disassembling the oven door.

DOOR REPLACEMENT AND ADJUSTMENT

Door Replacement Steps

Detailed steps for removing and reinstalling the oven door assembly.

Door Alignment and Adjustment

How to adjust the door for proper latching and alignment.

MICROWAVE MEASUREMENT

Microwave Leakage Requirement

Specifies the maximum allowable microwave radiation emission level.

Leakage Test Preparation

Steps to prepare the oven and test instruments for leakage testing.

PARTS LIST

Electrical Parts List

List of electrical components with part numbers and descriptions.

Cabinet and Control Panel Parts

List of external, structural, and control panel components.

Door and Miscellaneous Parts

Lists door components, racks, manuals, and packing accessories.

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