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F-17

F-17

TROUBLESHOOTING & REPAIR

T1 AUXILIARY TRANSFORMER TEST (continued)

15. Apply the correct input power and carefully

WARNINGtest for the correct primary voltages at plug J21. See Table F.1.

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ELECTRIC SHOCK can kill.

With input power ON, there are high voltages inside the machine. Do not reach into the machine or touch any internal part.

16.If the correct AC input voltages are applied to the primary windings and any or all of the secondary voltages are missing or not cor- rect, the T1 auxiliary transformer may be faulty.

17.After all tests are complete, reconnect plugs J30 and J31.

18.Install the case wraparound cover.

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INVERTEC STT

Page 55
Image 55
Lincoln Electric SVM129-B service manual Apply the correct input power and carefully