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INVERTER BOARD VOLTAGE 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 your Local Lincoln Electric Service Department for electrical
troubleshooting assistance before you proceed.
................................................................................................................................................
TEST DESCRIPTION
This test will help to determine if the main inverter board is receiving the correct input voltages and if the
correct regulated voltages are being processed and maintained by the inverter.
MATERIALS NEEDED
Volt/Ohmmeter
Machine wiring diagram
47
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