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TROUBLESHOOTING AND REPAIR |
FIRING BOARD 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 the Lincoln Electric Service Department for electrical trou- bleshooting assistance before you proceed. Call
TEST DESCRIPTION
This procedure will help to determine if the Firing Board is receiving the correct signals. The LEDs (Light Emitting Diodes) will help to determine if the Firing Board is generating SCR gate signals.
MATERIALS NEEDED
Misc. Hand Tools
Multimeter
Wiring Diagram or Machine Schematic
