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PRO-CUT 25
Section F-1 Section F-1
Troubleshooting & Repair Section .................................................................................Section F
How to Use Troubleshooting Guide ....................................................................................F-2
PC Board Troubleshooting Procedures and Replacement .................................................F-3
Troubleshooting Guide ........................................................................................................F-4
Test Procedures
Input Filter Capacitor Discharge Procedure .................................................................F-9
Main Inverter Board Resistance Test ............................................................................F-11
Input Board Voltage Test...............................................................................................F-17
Main Inverter Board Voltage Test..................................................................................F-21
Torch Continuity and Solenoid Test ..............................................................................F-25
Air/Gas Solenoid Test....................................................................................................F-29
Replacement Procedures
Control Board Removal and Replacement ...................................................................F-31
Input Board Removal and Replacement.......................................................................F-35
Main Inverter Board Removal and Replacement..........................................................F-39
Switch Removal and Replacement...............................................................................F-43
Fan Removal and Replacement....................................................................................F-45
Retest after Repair ........................................................................................................F-48
TABLE OF CONTENTS
TROUBLESHOOTING & REPAIR SECTION
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