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INPUT BOARD RESISTANCE 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.
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TEST DESCRIPTION
This test will determine if the input board has any " shorted " or "open" components.
MATERIALS NEEDED
Volt/Ohmmeter
Machine wiring diagram
36
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