Component Replacement Procedures; Control Pc Board Removal And Replacement - Lincoln Electric POWER MIG SVM170-A Service Manual

F-37 TROUBLESHOOTING AND REPAIR F-37

COMPONENT REPLACEMENT PROCEDURES

CONTROL PC BOARD REMOVAL AND REPLACEMENT

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 war-
ranty. 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 1-888-935-3877.
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CAUTION
Printed Circuit Boards can be damaged by static electricity. Follow static handling
guidelines detailed in "PC Board Troubleshooting Procedures" at the beginning of this
chapter.
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DESCRIPTION
This procedure will aid the technician in the removal and replacement of the control
PC board.
MATERIALS NEEDED
5/16 in. Nutdriver
Static electricity grounding strap
POWER MIG 255C