Lincoln Electric IDEALARC DC 1000 SVM123-A Service Manual page 73

Lincoln electric welding system user manual
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F-33
F-33
TROUBLESHOOTING & REPAIR
STATIC SCR TEST
FIGURE F.14 - Snubber Location and Circuit
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 .
IDEALARC DC-1000

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