Garmin G1000 NXi Pilot's Manual page 493

Message
COM #[1, 2] INOP - CRNT - Check
COM current.
COM #[1, 2] INOP - INTRL - Com
internal fault.
COM #[1, 2] INOP - SYNTH - COM
synthesizer lock fault.
COM #[1, 2] INOP - VOLT - Check
COM voltage.
COM #[1, 2] REDUCED TX POWER
- COM synthesizer lock fault.
COM1 PTT – COM1 push-to-talk key
is stuck.
COM1 RMT XFR – COM1 remote
transfer key is stuck.
COM1 SERVICE – COM1 needs
service. Return unit for repair.
COM1 TEMP – COM1 over temp.
Reducing transmitter power.
COM2 CONFIG – COM2 config error.
Config service req'd.
COM2 PTT – COM2 push-to-talk key
is stuck.
COM2 RMT XFR – COM2 remote
transfer key is stuck.
COM2 SERVICE – COM2 needs
service. Return unit for repair.
COM2 TEMP – COM2 over temp.
Reducing transmitter power.
CONFIRM BARO QFE – Confirm
BARO QFE Reference Elevation
DB CHANGE – Database changed.
Verify user modified procedures.
DB CHANGE – Database changed.
Verify stored airways.
DB MISMATCH – Navigation
database mismatch. Xtalk is off.
190-02177-02 Rev. A
Comments
COM1 and/or COM2 current is low. Check COM current.
COM1 and/or COM2 has an internal fault.
COM1 and/or COM2 has a synthesizer lock fault.
COM1 and/or COM2 voltage is low. Check COM voltage.
COM1 and/or COM2 has a reduced transmission power.
The COM1 external push-to-talk switch is stuck in the enable (or "pressed") position.
Press the PTT switch again to cycle its operation.
If the problem persists, the system should be serviced.
The COM1 transfer switch is stuck in the enabled (or "pressed") position. Press the
transfer switch again to cycle its operation. If the problem persists, the system should
be serviced.
The system has detected a failure in COM1. COM1 may still be usable. The system
should be serviced when possible.
The system has detected an over temperature condition in COM1. The transmitter
operates at reduced power. If the problem persists, the system should be serviced.
The COM2 configuration settings do not match backup configuration memory. The
system should be serviced
The COM2 external push-to-talk switch is stuck in the enable (or "pressed") position.
Press the PTT switch again to cycle its operation.
If the problem persists, the system should be serviced.
The COM2 transfer switch is stuck in the enabled (or "pressed") position. Press the
transfer switch again to cycle its operation. If the problem persists, the system should
be serviced.
The system has detected a failure in COM2. COM2 may still be usable. The system
should be serviced when possible.
The system has detected an over temperature condition in COM2. The transmitter
operates at reduced power. If the problem persists, the system should be serviced.
Confirm BARO QFE Reference Elevation.
This occurs when a stored flight plan contains procedures that have been manually
edited. This alert is issued only after an navigation database update. Verify the user-
modified procedures in stored flight plans are correct and up to date.
This occurs when a stored flight plan contains an airway that is no longer consistent
with the navigation database. This alert is issued only after an navigation database
update. Verify use of airways in stored flight plans and reload airways as needed.
The PFD and MFD have different navigation database versions or types installed.
Crossfill is off. Check the Aux-System Status Page to determine versions or regions.
Also, check the Aux-System Status Page for a database synchronization function not
completed. After synchronization is complete, power must be turned off, then on.
Garmin G1000 NXi Pilot's Guide for the Cessna NAV III
APPENDIX A
473