Lincoln Electric SVM153-A service manual Power Module Test, Test Description

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F-46	F-46
	TROUBLESHOOTING & REPAIR

POWER MODULE 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 help determine if the power modules are shorted. This is a resistance test, not a voltage test. This test will only help diagnose a problem in the "power" section of the module. Other PC board components could be faulty.

MATERIALS NEEDED

Volt/Ohmmeter (Analog)

3/8" Wrench

7/16" Wrench

3/4" Wrench

This procedure should take approximately 45 minutes to perform.

COMMANDER 500