Keypad Resistance Test - Lincoln Electric SVM154-A Service Manual

F-23 TROUBLESHOOTING AND REPAIR F-23

KEYPAD RESISTANCE TEST

WARNING
Service and repair should only be performed by Lincoln Electric factory trained
personnel. Unauthorized repairs performed on this equipment may result in dan-
ger 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 per-
form the test/repairs safely, contact the Lincoln Electric service department for
technical troubleshooting assistance before you proceed. Call 1-800-833-
9353(WELD).
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TEST DESCRIPTION
This test will determine if any key is not functioning properly.
MATERIALS NEEDED
5/16 in. Nut driver
Analog Volt-Ohmmeter
Small Screwdriver
LN-10