Troubleshooting
72 BD406/PBD406 DV16401.03 Issue 04 May 2021
Flight Test Check
• It is recommended to do a flight test as final installation verification.
• The performance of the device may be examined by reception of a distress beacon at a
range of at least 25 NM while maintaining an appropriate altitude and over all normal flight
attitudes.
• Examine performance with usage of all required navigation and communication equipment
installed and used during simulated rescue mission.
2.9 Troubleshooting
If you cannot correct the problem stop using the device(s) and contact authorized maintenance shop
for assistance, please.
BD406 without control head:
To control and read the test results, status and messages an external control interface is required. In
case of problems, an error notification can be read out through the external control interface.
• Wrong dimming input
selected.
• Dimming input set to NONE
• Select correct function(s) required
for the installation.
Communication Error.
GPS receiver.
Installation setup:
• External GPS source
selected with no external
• Set internal GPS source and
connect GPS antenna.
Supplied homing is unknown.
GPS source does not supply
valid position.
• Examine if GPS receiver can hold
position.
notification.
• Examine wiring.
mode does not respond to
user operation (disabled
interface).
• CH CTRL CONFIG is set to
LISTENER.
• Set CH CTRL CONFIG to FULL.
error.
Details "Warning and Failure
Indications" page 86.
Details "Warning and Failure
Indications" page 86.
beacons transmission.
• Invalid antenna installation.
• Unknown source of
• Examine antenna installation.
• Do interference Check see
"Interference Check" page 71
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