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OUTPUT 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.
............................................................................................................................................
TEST DESCRIPTION
This test will help determine if the "power section" of the output board are functioning correctly. This test will
NOT indicate if the entire PC board is functional but will give you the first feedback regarding the status of
the output power components.
MATERIALS NEEDED
Volt/Ohmmeter
Machine wiring diagram
40
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