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F-43

F-43

TROUBLESHOOTING & REPAIR

RF BY-PASS 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 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 inductor filters on the RF By-Pass Board are intact and capa- ble of passing signal information.

MATERIALS NEEDED

Volt/Ohmmeter 3/8" Nut driver

Phillips head screwdriver

This procedure should take approximately 25 minutes to perform.

COMMANDER 300

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Lincoln Electric SVM145-B service manual RF BY-PASS Board Resistance Test, Test Description