Lincoln Electric SVM104-A ユーザーズマニュアル

PRO-CUT 60

Section F

TABLE OF C

O

NTENTS

- TROUBLESHOOTING & REPAIR SECTION -

Page

Troubleshooting & Repair Section.............................................................................Section F

Safety Precautions..............................................................................................................F-1

How to Use Troubleshooting Guide....................................................................................F-1

PC Board Troubleshooting Procedures ..............................................................................F-2

Troubleshooting Guide .............................................................................................F-3 - F-11

Control and Power Board Connector Locations ...............................................................F-12

Test Procedures

Capacitor Discharge Procedure.......................................................................F-13 - F-14

Torch, Torch Cable Assembly, Internal Trigger & Safety Circuit Test ..............F-15 - F-20

Transistor Module Test.....................................................................................F-21 - F-23

Main Transformer Test .....................................................................................F-24 - F-26

Power Board Test ............................................................................................F-27 - F-30

High Voltage Transformer and Circuit Test .....................................................F-31 - F-33

Replacement Procedures

On/Off Power Switch Removal ........................................................................F-34 - F-35

Control Board Removal ...................................................................................F-36 - F-37

Power Board Removal.....................................................................................F-38 - F-40

Transistor Module Removal .............................................................................F-41 - F-42

SCR Module Removal .....................................................................................F-43 - F-45

Fan Blade and Fan Motor Removal/Replacement ..........................................F-46 - F-48

Torch Head Removal/Replacement .................................................................F-49 - F-51

Retest After Repair ..........................................................................................................F-52

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