INTRODUCTION
This Microwave Oven
Manuał is printed in a loose-leaf format. Each part is divided into sections relating
to a generał group of components and each section is subdivided into
describing a
component or
procedurę.
The subdividing of the subject matter plus the loose leaf form will facilitate the updating of the manuał as new or
components and
procedures
Each page of this
manuał will be identified in the
right hand corner and, as new or revised pages
published, it will be easy to keep the manuał up to
by following the
instructions on the cover letter.
This
Manuał is a valuable
and care should be taken to keep it up to
by prompt and
proper
of subsequent pages as they
issued.
CONTENTS
SAFETY PRECAUTIONS 2
1 THE HEATING PRINCIPLE OF MICROWAVE 3
2 THE
WORKING
OF
OVEN 4
2.1
VOLTAGE RECTIFYING CIRCUIT. 4
2.2 MICROWAVE GENERATER 5
2.3 COOLING SYSTEM 5
2.4 ELECTRIC CONTROL SYSTEM 5
3 TYPICAL CIRCUIT ANALYASIS OF MICROWAVE OVEN 8
4
ASSEMBLE AND DISASSEMBLE MICROWAVE OVEN COMPONENTS 9
4.1 THE
9
THE DOOR COMBINATION 10
4.3 THE CONTROL PANEL AND THE DOOR RELEASE MECHANISM 11
4.4
11
4.5
12
4.6
FAN MOTOR 12
4.7
13
4.8 THE DIODĘ 13
4.9
14
4.10 THE DOOR SAFTY INTERLOCKS 14
THE CONTROL PANEL
OVEN 15
5
16
5.1 EXAMINING THE BREAKDOWN CAUSES 16
16
5.3 REPAIRING METHOD OF SEVERAL BREAKDOWN 19
5.4 THE CHARACTERS
OF
AFTER IT HAS BEEN REPAIRED 20
6 CRITICAL PARTS
21
6.1 IMPORTANT THINGS TO DO
TO CRITICAL PARTS SERVICING: 21
6.2 Interlock Assembly Replacement and Adjustment 21
7 COMMON BREAKDOWN OF
OVEN AND MEANS OF REPAIRING ... ... 22
