Becker Avionics
Operation
Warning and Failure Indications
DV17551.03 Issue 03 June 2020
RCU6512
57
3.10 Warning and Failure Indications
Display Contents Description
"WAIT" screen during start-up.
•
Normally maximum 5 s in view then next message.
"TEST" screen during Initiated Built-In-Test (IBIT).
"FAILURE" is shown when ANTENNA VSWR error is detected.
Possible reasons:
•
Disconnected or defected antenna cable or defect antenna.
•
HW or SW failure inside the controller.
•
HW or SW failure inside the transceiver.
Contact maintenance shop for assistance.
"FAILURE" is shown when heatsink temperature e85 °C (TX HOT error).
•
Transceiver is still operable. Performance of transmitter is reduced.
•
"FAILURE" goes out of view when heatsink temperature decreases to less
+75 °C
Possible reasons:
•
Very hot environmental temperature, long transmissions times and
insufficient airflow conditions.
"FAILURE" is shown when heatsink temperature e95 °C
(TX OVERTEMP error).
•
Transceiver is operable only in receive mode. Transmission is blocked.
•
"FAILURE" goes out of view when heatsink temperature decreases to less
+85 °C
Possible reasons:
•
Very hot environmental temperature, long transmissions times and
insufficient airflow conditions.
"FAILURE" is shown after 30 s of continued transmission (STUCK PTT Error).
•
The transceiver changes to receive mode even if the PTT line is still active
(GND).
•
"FAILURE" goes out of view after push of any key or rotary encoder button
and is shown again after 5 s with no action.
•
"FAILURE" goes out of view permanently when PTT line becomes inactive
(open).
Possible reasons:
•
Transmission lasts more than 30 seconds.
•
PTT-key is stuck.
•
PTT line permanently grounded (short circuit in installation).
FAILURE
FAILURE
FAILURE
FAILURE
