Control Board Test - Lincoln Electric MULTI-SOURCE SVM155-A Service Manual

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TROUBLESHOOTING & REPAIR

CONTROL BOARD TEST

WARNING
Service and repair should be performed only by Lincoln Electric factory trained personnel.
Unauthorized repairs performed on this equipment could result in danger to the technician or the
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
tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting
assistance before you proceed. Call (800) 833-9353 (WELD).
TEST DESCRIPTION
This test will determine if the control board is receiving the correct voltages and feedback signals.
MATERIALS NEEDED
Volt/Ohm Meter (Multimeter)
MULTI-SOURCE wiring diagrams (See Electrical Diagram Section of Manual).
This procedure takes approximately 45 minutes to perform.
MULTI-SOURCE