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400 SERIES MAINTENANCE MANUAL Page 5-1
P/N 190-00140-05 Rev. C
SECTION 5
ALIGNMENT, CALIBRATION, AND TESTING
5.1 INTRODUCTION
This section provides unit-level alignment, calibration, and testing information for the 400 Series
units. The procedures in this section can be performed before troubleshooting begins to help
identify a faulty board, or as a return to service test after repair has been completed. All tests can
be performed without accessing the inside of the unit.
This unit contains static sensitive devices. Service personnel
must ensure that proper precautions are taken to prevent damage
to this equipment from Electro Static Discharge (ESD). Testing
should only be accomplished in an approved ESD workstation
by properly trained and grounded personnel.
Hazardous voltages exist on the Inverter Board (all units).
Under normal operating conditions the voltages range up to
2500 Vac peak to peak. Under open circuit conditions voltages
can range over 8000 Vac peak to peak. Exercise extreme
caution during unit testing. Death or serious injury could
result from electrical shock.
5.2 RECOMMENDED TEST EQUIPMENT
Test cables and a test panel are supplied by the authorized repair
station. Load and signal information given in Section 2 and
Appendix B can be used to aid in their fabrication. Suitable
substitutes can be used for the recommended test equipment
listed on page 5-2.