Lincoln Electric INVERTEC SVM129-B - Manual (Page 53)

TROUBLESHOOTING & REPAIR
F-15 F-15
INVERTEC® STT® & STT® II
5. Locate the primary lead molex plug (J21)
just behind the reconnect panel assembly on
the right side of the machine. Check for bro-
ken or loose wires. See Figure F.2.
6. Disconnect plugs J30 and J31 from the
wiring harness.
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.
7. Apply the correct input power to the machine
and test for the correct secondary voltages
at plugs J30 and J31. (Make sure the recon-
nect panel is configured properly for the
input voltage being applied.) See Table F.1.
T1 AUXILIARY TRANSFORMER TEST (continued)
RECONNECT
PANEL
PLUG J21
LOCATION BEHIND
RECONNECT PANEL
FIGURE F.2 – PRIMARY LEAD PLUG J21 LOCATION
WARNING
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