Sanyo Em-z2000s Service Manual - Page 2

INTRODUCTION This Microwave Oven Service Manual is printed in a loose-leaf format. Each part is divided into sections relating to a general group of components and each section is subdivided into various parts describing a particular component or service procedure. The subdividing of the subject matter plus the loose leaf form will facilitate the updating of the manual as new or revised components and service procedures are introduced. Each page of this service manual will be identified in the lower right hand corner and, as new or revised pages are published, it will be easy to keep the manual up to date by following the filing instructions on the cover letter. This Service Manual is a valuable service tool and care should be taken to keep it up to date by prompt and proper filling of subsequent pages as they are issued. CONTENTS SAFETY PRECAUTIONS...2 EM-Z2000S Microwave Oven Explode Drawing ...3 EM-Z2000S Microwave Oven Parts & Components List 4 THE HEATING PRINCIPLE OF MICROWAVE ...5 THE STRUCTURE AND WORKING PRINCIPLE OF MICROWWAVE OVEN 6 1.1 HIGH VOLTAGE RECTIFYING CIRCUIT 6 1.2 MICROWAVE GENERATER...7 1.3 COOLING SYSTEM...7 1.4 ELECTRIC CONTROL SYSTEM...7 TYPICAL CIRCUIT ANALYASIS OF MICROWAVE OVEN 10 HOW TO ASSEMBLE AND DISASSEMBLE MICROWAVE OVEN COMPONENTS 11 1.5 THE CABINET ...11 THE DOOR COMBINATION ...12 1.7 THE CONTROL PANEL AND THE DOOR RELEASE MECHANISM 13 1.8 THE MAGNETRON...13 1.9 THE TRANSFORMER...14 1.10 THE FAN MOTOR...14 1.11 THE CAPACITOR...15 1.12 THE DIODE...15 1.13 THE TURNTABLE COMBINATIOM 16 1.14 THE DOOR SAFTY INTERLOCKS 16 THE CONTROL PANEL OF A TYPICAL MICROWAVE OVEN 17 BREAKDOWN ANALYSIS AND THE MEANS OF OVERHAULING 18 1.16 EXAMINING THE BREAKDOWN CAUSES 18 SPOT EXAMINING STEPS OF THE MICROWAVE OVEN 18 1.18 REPAIRING METHOD OF SEVERAL BREAKDOWN 21 1.19 THE CHARACTERS REQUIREMENTS OF MICROWAVE AFTER IT HAS BEEN REPAIRED ......22 CRITICAL PARTS SERVICING ...23 1.20 IMPORTANT THINGS TO DO PRIOR TO CRITICAL PARTS SERVICING 23 1.21 Interlock Assembly Replacement and Adjustment 23 COMMON BREAKDOWN OF MICROWAVE OVEN AND MEANS OF REPAIRING 24 SPECIFICATIONS ...25 1