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TROUBLESHOOTING & REPAIR
F-14 F-14
INVERTEC STT
T1 AUXILIARY
TRANSFORMER
PLUG
J31
PLUG
J30
FIGURE F.1 – T1 AUXILIARY TRANSFORMER AND J30/J31 LOCATION
T1 AUXILIARY TRANSFORMER TEST (continued)
TEST PROCEDURE
1. Turn off 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, per-
form the capacitor dis-
charge procedure to
avoid electric shock.
4. Locate the T1 auxiliary transformer and sec-
ondary lead molex plugs (J30 and J31) on
the left side, just in front of the main trans-
former assembly. Check for broken or loose
wires. See Figure F.1.
WARNING