Garmin GTX 335 Pilot's Manual - Page 31

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Garmin GTX 335 Pilot's Manual
GTX 3X5
SYSTEM MESSAGE
ADS-B Position Input Failed
FIS-B Weather Failed
Ground Test
Maximum Temperature
Exceeded
Minimum Temperature
Exceeded
Pressure Altitude Failed
Service Soon
TAS/TCAS Failed
190-01499-00 Rev. A
EXPLANATION
The unit is not receiving GPS.
The FIS-B receiver has
failed. The display of
FIS-B products may be
unavailable.
The unit is operating in a
mode intended for ground
testing.
The unit is too hot. The
transponder will not transmit
until it has cooled.
The unit is too cold. The
transponder will not
transmit until it has warmed
up.
The GTX 3X5 has lost
communication with the
pressure altitude source.
GTX 3X5 has detected an
internal fault but the unit will
continue to function.
TAS/TCAS is reporting failed
or the GTX 3X5 has lost
communicating with the
TAS/TCAS.
Garmin GTX 335/345 Pilot's Guide
Troubleshooting
7 – TROUBLESHOOTING
FLIGHT CREW ACTION
1. Check power and/or circuit breaker for
the GPS position source (e.g., GTN or
GNS).
2. Make sure the GPS antenna has a clear
view of the sky and provide enough
time for the GPS position source to
obtain a position fix. Extended periods
between use or GPS position source
disconnection from the aircraft battery
could cause a longer than normal GPS
satellite acquisition time.
Contact dealer for service.
Turn the unit off and then back on
again.
Use alternate transponder as the active
transponder, if available, to allow the
GTX 3X5 to cool.
Allow time for the GTX 3X5 to warm up to
ensure proper operation.
Check power and/or circuit breaker for the
pressure altitude source (e.g., altitude
encoder, ADC, etc.)
Contact dealer for service.
Check power and/or circuit breaker for the
TCAD/TAS/TCAS I System.
7-3