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INPUT 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 correct input voltage is being applied to the input board and also if the
correct voltages are being processed on the input board.
MATERIALS NEEDED
Volt/Ohmmeter
Machine wiring diagram
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