iv
CONTENTS 
ECTION  PAGE
  INTRODUCTION…………………………………………………………………………….………………………
1
  SPECIFICATIONS……………………………………………………………………………………………………
2
2-1  General…………………………………………………………………………………….…………………….
2
2-2  Constant Voltage Operation……………………………………………………………………………………
3
2-3  Constant Current Operation…………………………………………………………………………………...
3
2-4  Indicator Meter………………………………………………………………………………………………….
3
2-5  Insulation………………………………………………………………………………………………………...
3
  PRECAUTIONS BEFORE OPERATION…………………………………………………………………………..
4
3-1  Unpacking the Switching Power Supply………………………………………………………………………
4
3-2  Checking the line voltage……………………………………………………………………………………….
4
3-3  Environment…………………………………………………………………………………………………….
5
3-4  Equipment installation and operation…………………………………………………………………………
5
  THEORY OF OPERATION…………………………………………………………………………………………
6
  PANEL CONTROLS AND INDICATORS…………………………………………………………………………
9
5-1  Front Panel………………………………………………………………………………………………………
9
5-2  Real Panel………………………………………………………………………………….…………………….
9
  OPERATION INSTRUCTIONS…………………………………………………………………………………….
12
6-1  Precaution………………………………………………………………………………….…………………….
12
6-2  Setting Current Limit…………………………………………………………………………………………...
15
6-3  Constant Voltage/Constant Current Characteristic………………………………………………………….
15
6-4  Operation Mode…………………………………………………………………………………………………
16
  MAINTANCE…………………………………………………………………………………………………………
17
7-1  Fuse Replacement……………………………………………………………………………………………….
17
7-2  Line voltage Conversion………………………………………………………………………………………...
17
7-3  Adjustment………………………………………………………………………………………………………
18
7-4  Cleaning………………………………………………………………………………………………………….
20
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