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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-57
Main Switch Board Removal and Replacement ...........................................................F-61
Mode Board Removal and Replacement......................................................................F-65
Status Board Removal and Replacement.....................................................................F-71
Snubber Board Removal and Replacement .................................................................F-75
Power Board Removal and Replacement.....................................................................F-77
Input Rectifier Removal and Replacement ...................................................................F-81
Output Rectifier Modules Removal and Replacement .................................................F-85
Current Transducer Removal and Replacement...........................................................F-89
Retest after Repair ........................................................................................................F-94
TABLE OF CONTENTS
TROUBLESHOOTING & REPAIR SECTION
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