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TROUBLESHOOTING & REPAIR
F-50 F-50
INVERTEC STT
TRIGGER CIRCUIT TEST (continued)
FIGURE F.19 – PLUG J31 LOCATION
PLUG
J31
TEST PROCEDURE
1. Turn off the Invertec STT 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