Lincoln Electric IDEALARC DC-1000 Service Manual page 70

TROUBLESHOOTING AND REPAIR
F-36 F-36
STATIC SCR TEST (continued)
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 SCRsʼ functions use an
SCR tester and proceed to Active SCR Test.
IDEALARC ® DC-1000