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TROUBLESHOOTING & REPAIR
F-26 F-26
INVERTEC STT
INPUT RECTIFIER TEST (continued)
FIGURE F.9 - INPUT RECTIFIER LOCATION
INPUT
RECTIFIER
CA
9
12
B
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, per-
form the capacitor dis-
charge procedure to
avoid electric shock.
4. Locate the input rectifier. See Figure F.9.
5. Locate the leads needed to perform the
tests. See Figure F.9.
6. Use an ANALOG ohmmeter to perform the
tests shown in Table F.3.
WARNING