The dc buss supply, Board test, Perform the dc buss supply board test – Lincoln Electric MULTI-WELD SVM151-A User Manual
Page 63: Troubleshooting & repair, Dc buss power supply pc board test warning
TROUBLESHOOTING & REPAIR
F-23
F-23
MULTI-WELD 350
DC BUSS POWER SUPPLY PC 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 1-800-833-9353 (WELD).
TEST DESCRIPTION
This test will determine if the DC Buss Power Supply PC Board is receiving and process-
ing the proper signal voltages.
MATERIALS NEEDED
3/8" Nut driver
Analog Volt/Ohmmeter
Wiring Diagram
This procedure should take approximately 30 minutes to perform.