Honeywell
COMPONENT MAINTENANCE MANUAL
PART NUMBER 964-0452
I.B.1516A Page 122.4
Oct 25/02
23-12-01
Table of Test Results
Figure 114
E . Manually-Initiated Test/Power Up Test
In addition to the continuous monitoring system, a self-test can be called in the menu mode
on the HF Tester display. This self-test embraces the results of continuous monitoring as well
as additional information that permits more detailed localization down to functional assembly
level. The fault messages of the self-test procedure are summarized in the table of test re-
sults, Fig. 114).
This test is automatically triggered with each power up start (power interrupt greater than 5
seconds, provided that ground phase is present). Furthermore, this test can be initiated by
pressing the button mounted on the Transceiver front panel. The results of this test can be
read on the Tester display (TEST submenu). In addition, the corresponding LEDs on the front
panel of the Transceiver respond:
– LRU FAIL
– COUPLER FAIL
– EXTERNAL INPUT FAIL (for ARINC 429 control port)
The test results are shown in Figs. 115 and 116. The result obtained in this case is the defec-
tive LRU. More detailed information on the fault can now be acquired by means of the ground
report or troubleshooting data.
FAILURE DESCRIPTION
FAILURE
MESSAGE
TROUBLE SHOOT
MESSAGE CLASS
Loss of Synthesizer Lock HFx RX/TX (100) 1
Amplifier temperature too high HFx AMPL (0010) 2
Supply voltage Amplifier (50V) out of range HFx PWR SPLY (0010) 1
Voltage (28V) out of range HFx PWR SPLY (1000) 1
Voltage Coupler out of range HFx PWR SPLY (0001) 1
Supply voltage 5/15V out of range HFx PWR SPLY (0100) 1
Power Supply temperature too high HFx PWR SPLY (0010) 2
Supply current Coupler out of range HFx CPLR CPLR (0100000) 1
Antenna Coupler overtemperature HFx CPLR CPLR (0000010) 2
Antenna Coupler low pressure HFx CPLR CPLR (1000000) 1
ARINC frequency control Port A DATA
- Low refresh rate
- parity error
- SSM bits incorrect
RMP1/HFx* WRONG PORT A (010) 1
ARINC frequency control Port B DATA
- Low refresh rate
- parity error
- SSM bits incorrect
RMP2/HFx* WRONG PORT B (001) 1
ARINC BITE In commands CMC/HFx* WRONG CMC DATA 1
*x is either 1 or 2, depending on whether the Transceiver was installed in slot 1 or 2 on the aircraft.
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