190-01007-C1
GTN Xi Part 23 AML STC Maintenance Manual
Rev. 1
Page 3-20
HSDB (Ethernet)
Displays the status of each HSDB (ethernet) port, whether or not each port is receiving data, and whether
the port is connected or not connected. The communication status of each installed HSDB LRU is
displayed.
Main Indicator (Analog)
Displays the CDI connected to the main board (P1001) to be ground checked. This allows the interface to
be verified.
Analog Inputs
Displays the bus voltage setting for Lighting Bus 1 and Lighting Bus 2 and the input voltage setting for
each bus. This page also displays synchro heading input diagnostics information, such as heading angle,
heading valid status, AC voltage, and AC frequency.
Power Stats
Displays the number of times the GTN Xi has powered up and the total elapsed operating hours for the
GTN Xi.
WAAS
Displays the WAAS engine status, including UTC date/time, current latitude/longitude, overall navigation
status, oscillator temperature, and AGC voltage. The GPS/WAAS engine can be reset on this page.
Temps
Displays the current, minimum, maximum, and average board temperatures for the LED Board, Main
Board, Display Interface Board, GPS/WAAS Board, COM Board, and COM Oscillator.
Logs
Allows the error log, connection log, WAAS diagnostic log, or flight data log to be written to an SD card in
the data card slot. The error log can be cleared on this page.
Main Data Inputs
Allows the data on ARINC 429, RS-232, and other electrical inputs to be monitored. This is used for
checking electrical interfaces during installation and troubleshooting. Information that is not being
received by the GTN Xi is dashed out.
VOR/ILS Indicator (Analog)
Allows the CDI connected to the NAV board (P1004) to be ground checked and allows the NAV indicator
interface to be verified.
COM Board
Displays status of the FPGA, flash, non-volatile memory, synthesizer lock, calibration, and reversionary,
as well as the transmitter power limit.
Clear Config Settings
CAUTION
This key should only be pressed if the intent is to clear all configuration settings. Touching
the
Clear Config Settings
key opens a confirmation window to reset all of the settings
stored in the configuration module to their defaults.
