Lincoln Electric INVERTEC SVM129-B - Manual (Page 88)

TROUBLESHOOTING & REPAIR
F-50 F-50
INVERTEC® STT® & STT® II
TRIGGER CIRCUIT TEST (continued)
FIGURE F.19 – PLUG J31 LOCATION
PLUG
J31
TEST PROCEDURE
1. Turn off the INVERTEC® STT® & STT® II
and disconnect main AC input power to the
machine.
2. Using the 5/16" nut driver, remove the case
wraparound cover.
3. Perform the Input Filter Capacitor
Discharge Procedure. See the Maintenance
section.
ELECTRIC SHOCK can
kill.
• Before continuing with the
test procedure, perform
the capacitor discharge
procedure to avoid electric
shock.
4. Locate plug J31 at the left side of the
machine. See Figure F.19.
WARNING
Return
to
Section
T
OC
Return
to
Section
T
OC
Return
to
Section
T
OC
Return
to
Section
T
OC
Return
to
Master
T
OC
Return
to
Master
T
OC
Return
to
Master
T
OC
Return
to
Master
T
OC