Instruction manual

400W Series 190-01226-04 Rev. 2
Instructions for Continued Airworthiness Bell 206B Page 14 of 22
Alert Text Possible Cause Solution
Data transfer error, please
re-transmit
• An error was detected during
unit-to-unit crossfill of user
data (user waypoints and/or
flight plans).
• The data transfer should be re-
attempted.
Display backlight failure
• The 400W Series unit has
detected a failure in the display
backlighting.
• Contact Garmin technical
support.
Do not use for navigation
• The 400W Series unit is in
Demo Mode and must not be
used for actual navigation.
• Check that the DEMO MODE
SELECT pin, P5001 Pin 75, is
not connected.
G/S has failed
420W and 430W only)
• The unit has detected a failure
in its glideslope receiver.
• Contact Garmin technical
support.
G/S is not responding
420W and 430W only)
• Internal system-to-system
communication between the
main processor and the
glideslope receiver has failed.
Operational status of the
glideslope receiver is
unknown.
• Contact Garmin technical
support.
G/S needs service
420W and 430W only)
• The unit has detected a failure
in its glideslope receiver. The
glideslope receiver may still be
usable.
• Contact Garmin technical
support.
GAD configuration required
• The GAD 42 Interface Adapter
has lost the configuration
information stored in its
internal memory. Any
mechanical indicators
connected to your 400W-
series unit are unusable.
• Reconfigure the GAD 42 unit.
Refer to the GAD 42 Installation
Manual
(P/N 190-00159-00)
GAD needs service
• The 400W Series unit has
detected a failure in the
GAD 42 interface adapter.
Any mechanical indicators
connected to your unit are
unusable.
• Refer to Section 5.2.3 of the
GAD Installation Manual (P/N
190-00159-00)
• Check for proper configuration
• Check wiring
GDL 69 is not responding
• No data is being received from
the GDL 69.
• Contact Garmin technical
support.
GPS is not responding –
• GPS antenna cable is shorted • Verify that the center conductor
is not shorted to the braid in the
coaxial cable.