Instruction Manual

Page 5-94 G1000 / GFC 700 System Maintenance Manual - 200/B200 Series King Air
Revision 9 190-00915-01
Problem Cause Solution
1030 MHz Fault Internal Fault Return to Garmin for service
1090 MHz Fault Internal Fault Return to Garmin for service
PA/LNA Fault Antenna connections or internal fault Ensure all antenna connections are
correct otherwise return to Garmin for
service
Receiver Fault Antenna connections or internal fault Ensure all antenna connections are
correct otherwise return to Garmin for
service
Transmitter Fault Antenna connections or internal fault Ensure all antenna connections are
correct otherwise return to Garmin for
service
Baro Altitude Fault Baro Altimeter is not powered on or
improper wiring.
Verify that the baro altimeter has
power and is properly wired.
Improper configuration settings Verify the configuration correct
Temperature Fault Fan is not operating, Poor ventilation at the
mounting location
Verify the fan is running and the unit
is getting adequate ventilation.
TCAS Equipage Fault Broken wire, improper configuration Verify configuration settings on the
transponder and the GTS. Ensure
proper wiring between the
transponder and the GTS
Radio Altitude Fault Radar Altimeter is not powered on or
improper wiring.
Verify that the radar altimeter has
power and is properly wired.
Improper configuration settings Verify the configuration is correct.
Red ‘X’ on a data port on the
configuration page
Improper wiring; wrong port or speed
selected
Ensure the port is properly wired to
the GTS 820/850 and the correct
settings are selected on the
configuration page.
5.29 GTS Traffic Processor Troubleshooting
Symptom Recommended Action
Unit does not power up –
Data failed message
• Ensure power is properly wired to the GTS Traffic Processor and the
TRFC circuit breaker is closed
• Verify that the GTS Traffic Processor is configured correctly for the
desired display
Traffic Display erroneously
indicates TA at own ship
position
• Check the mutual suppression line to ensure it is connected to the correct
pins at the GTS Processor as well as the installed transponder. Ensure
there are no fractures in the wire, and that the suppression line is
functioning properly.
Calibration Data Fault
• Return unit to Garmin for service
Configuration Data Fault
• Attempt configuration per the configuration
• Download the assert log and send to Garmin for diagnosis
FPGA Fault
• If upload of FPGA image was recently attempted, retry the upload. Other
wise return unit to Garmin for service.
ROM Fault
• If upload of audio image or IGRF magnetic field image was recently
attempted, retry the upload. Other wise return unit to Garmin for service.
Execution Fault
• Cycle power and retry self test.
• Download the assert log and send to Garmin for diagnosis.
• Return unit to Garmin for service if fault persists.
Electrical Fault
• Check aircraft power supply
• Download the assert log and send to Garmin for diagnosis.
• Return unit to Garmin for service if fault persists.