Lincoln Electric INVERTEC SVM158-A - Manual (Page 51)

V350-PRO
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-15
Main Switch Board Test ................................................................................................F-17
Input Rectifier Test ........................................................................................................F-21
Power Board Test ..........................................................................................................F-25
Output Diode Modules Test ..........................................................................................F-29
Auxiliary Transformer Test .............................................................................................F-33
Current Transducer Test ................................................................................................F-37
Fan Control and Motor Test ..........................................................................................F-41
SPI Cable Resistance and Voltage Test........................................................................F-45
Voltage and Current Calibration Procedure ..................................................................F-47
Replacement Procedures
Control Board Removal and Replacement ...................................................................F-51
Display Board Removal and Replacement ...................................................................F-55
Main Switch Board Removal and Replacement ...........................................................F-59
Advanced Process Panel Removal and Replacement .................................................F-63
Remote Board Removal and Replacement ..................................................................F-69
Snubber Board Removal and Replacement .................................................................F-73
Power Board Removal and Replacement.....................................................................F-75
Input Rectifier Removal and Replacement ...................................................................F-79
Output Rectifier Modules Removal and Replacement .................................................F-83
Current Transducer Removal and Replacement ...........................................................F-87
Retest after Repair ........................................................................................................F-92
TABLE OF CONTENTS
TROUBLESHOOTING & REPAIR SECTION
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