Sharp R-880F

R-880F(S)
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 ....................................................................................... 8
SERVICING ..............................................................................................................................................8
TROUBLESHOOTING GUIDE ...............................................................................................................10
TEST PROCEDURE.............................................................................................................................. 12
TOUCH CONTROL PANEL ASSEMBLY ..............................................................................................20
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE.................................................. 26
MICROWAVE MEASUREMENT ........................................................................................................... 32
WIRING DIAGRAM................................................................................................................................ 33
PICTORIAL DIAGRAM .......................................................................................................................... 37
POWER UNIT CIRCUIT .........................................................................................................................38
CONTROL PANEL CIRCUIT ..................................................................................................................39
PRINTED WIRING BOARD ....................................................................................................................40
PARTS LIST .......................................................................................................................................... 41
S8209R880FPJS
DOUBLE GRILL
CONVECTION
MICROWAVE OVEN
MODEL R-880F(S)
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
DOUBLE GRILL CONVECTION
Sensor

Sharp R-880F Specifications

General

Brand	Sharp
Model	R-880F
Category	Microwave Oven
Language	English

Summary

General Information and Safety

WARNING

Critical safety precautions for oven operation.

Product Specifications

SPECIFICATION

Detailed technical specifications of the microwave oven.

Operation Sequence

MICROWAVE COOKING

Process and power levels for microwave cooking.

GRILL COOKING

Operation details for Top, Bottom, and combined grill modes.

Servicing Precautions

WARNING TO SERVICE PERSONNEL

Critical safety warnings for personnel servicing the microwave oven.

PRE-SERVICE CHECKS

Troubleshooting Guide

Test Procedures

MAGNETRON AND MICROWAVE POWER TEST

Procedures to test magnetron and microwave output power.

HIGH VOLTAGE COMPONENT TESTS

AH Sensor Testing

AH SENSOR TEST PROCEDURE

Microwave Measurement

LEAKAGE TEST REQUIREMENTS

Safety requirements for microwave radiation emission levels.

Circuit Diagrams

OFF AND MICROWAVE COOKING SCHEMATICS

GRILL AND CONVECTION SCHEMATICS

MIX COOKING AND CONTROL PANEL SCHEMATICS

Wiring and PCB Diagrams

PICTORIAL WIRING DIAGRAM

POWER UNIT AND PRINTED WIRING BOARD

Parts List

ELECTRIC AND CABINET PARTS

Lists of electrical, cabinet, and control panel components.