Lincoln Electric SVM123-A Welding System User Manual


 
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F-33
TROUBLESHOOTING & REPAIR
F-33
5. Repeat Step 4 testing SCR 2, SCR
3, SCR 4, SCR 5, and SCR 6.
To further check the SCRs’ functions
use an SCR tester and proceed to
Active SCR Test
.
STATIC SCR TEST
IDEALARC DC-1000
FIGURE F.14 - Snubber Location and Circuit