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TROUBLESHOOTING AND REPAIR
MAIN INVERTER BOARD
“WELDING LOGIC AND INVERTER” SECTION TEST
WARNING
Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
DESCRIPTION
This test will help determine if all functions of the Welding Logic Circuit and Inverter are func- tioning properly
MATERIALS NEEDED
Volt/Ohmmeter
Phillips Head Screwdriver
Wiring Diagram
