Sharp R242WW User Manual

CHAPTER 1. SAFTY PRECAUTIONS
CHAPTER 2. CAUTIONS
CHAPTER 3. THE HEATING PRINCIPLE OF MICRO-
CHAPTER 4. INSTALLATIONS
CHAPTER 5. SCHEMATIC DIAGRAM
CHAPTER 6. CIRCUIT DESCRIPTION
CHAPTER 7. TOOLS AND MEASURING INSTRUMENTS
CHAPTER 8. MICROWAVE LEAAGE TEST
CHAPTER 9. MEASUREMENT OF MICROWAVE
CHAPTER 10. TROUBLE SHOOTING PROCEDURES
CHAPTER 11.
CHAPTER 12. IMPORTANT THINGS TO DO PRIOR
CHAPTER 13. SAFTY CHEC S AND TESTS AFTER
CHAPTER 14.
Parts List
MICROWAVE OVEN
R-242
SERVICE MANUAL
MODEL
CONTENTS
SHARP CORPORATION
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
In interests of user-safety the oven should be restored to its
original condition and only parts identical to those specified
should be used.
R242
WAVE
POWER OUTPUT
COMMON BREAKDOWN AND MEANS OF
PREPARING
CRITICAL PART SERVICING
K
SERVING
EXPLODED VIEW
(W)W
R-242
(IN)W
R-242
(BK)W
(800W 230V 50Hz)

Sharp R242WW Specifications

General

Brand	Sharp
Model	R242WW
Category	Microwave Oven
Language	English

Summary

SAFETY PRECAUTIONS

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY

Essential safety measures to prevent microwave energy exposure during service.

CAUTION MICROWAVE RADIATION

Warning about avoiding direct exposure to microwave radiation.

CAUTIONS

MICROWAVE RADIATION

Specific warnings and precautions regarding microwave radiation.

SCHEMATIC DIAGRAM

CIRCUIT DESCRIPTION

SERVICE INFORMATION

MICROWAVE LEAKAGE TEST

MEASUREMENT WITH OUTER CASE REMOVED

MEASUREMENT WITH A FULLY ASSEMBLED OVEN

MEASUREMENT OF MICROWAVE POWER OUTPUT

TROUBLE SHOOTING PROCEDURES

REPAIRING METHOD OF SEVERAL BREAKDOWN

Repair when there occurred large amounts microwave leakage

Detailed steps to fix excessive microwave leakage issues.

COMMON BREAKDOWN AND MEANS OF REPAIRING

IMPORTANT THINGS TO DO PRIOR TO CRITICAL PART SERVICING

Interlock Assembly Replacement and Adjustment

Door and Hinge Replacement and Adjustment

Magnetron Replacement

SAFETY CHECKS AND TESTS AFTER SERVING

Insulation Resistance Test