Honeywell KHF 1050, System Installation Manual

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KHF 1050 SYSTEM INSTALLATION MANUAL
Page 1002
Revison 2
23-10-09
Apr/2006
2.A. Preliminary Check
1. Prior to turning the system ON, ensure that all connectors are properly seated
in their proper location.
2. Turn the system ON. As the system turns ON it performs a brief self-test.
Normally, after a few seconds, the HF controller (or HF window of a
multi-function controller) will show an HF operating frequency, mode of
operation and other operating parameters. Refer to the operating manual for
the specific controller for specific operation and the information available on the
display.
3. Push the TEST button on the controller to perform a system test. The
pilot-activated self-test takes approximately 15 seconds to complete.
4. KXR 1053 Receiver/Exciter Built-In-Test
The receiver/exciter design incorporates provisions for monitoring its own
operation to detect any condition or occurrence that the operator (a flight crew
member) might observe and interpret as a reason for requesting a maintenance
action.
These maintenance observations are stored in non-volatile memory within the
receiver/exciter so they can be retrieved with appropriate test equipment.
If a serious fault is detected, the “receiver/exciter status” bit of the Maintenance
Status message, label 351, is set to indicate a fault.
The maintenance data collection provision includes the following three types of
monitoring: Power-On, Continuous Monitoring and Initiated Tests. The BITE
tests that typically are performed at system turn-on, at pilot activated, or
continuously are summarized in “Table 1001 - RX/EX BITE Matrix” . The table
shows which tests are performed for each of the three types of monitoring.