Garmin GTN 6 Series Maintenance Manual page 37

HSDB (Ethernet)
The HSDB (Ethernet) page displays the status of each HSDB port to be displayed. It displays whether or
not each port is receiving data and displays whether the port is connected or not connected. The
communication status of each installed HSDB LRU is also displayed.
Main Indicator (Analog)
The Main Indicator (Analog) page displays the CDI connected to the main board (P1001) to be ground
checked and allows the interface to be verified.
Analog Inputs
The Analog Inputs page displays the bus voltage setting for lighting bus 1 and lighting bus 2, as well as the
input voltage setting for each bus. It also displays synchro heading input diagnostics information, such as
heading angle, heading valid status, AC voltage, and AC frequency.
Power Stats
The Power Stats page displays the number of times the GTN has powered up, as well as the total elapsed
operating hours for the GTN.
WAAS
The WAAS page displays the WAAS engine status, including UTC date/time, current LAT/LON, overall
navigation status, oscillator temperature, and AGC voltage. This page also allows the GPS/SBAS engine to
be reset.
Temps
The Temps page displays the current, minimum, maximum, and average board temperatures for the LED
Board, Main Board, Display Interface Board, GPS/SBAS Board, COM Board, and COM oscillator.
Logs
The Logs page allows the error log, connection log, WAAS diagnostic log, or flight data log to be written
to the data card in the front slot. It also allows the error log and WAAS diagnostic log to be cleared.
Main Data Inputs
The Main Data Inputs page allows the data on ARINC 429, RS-232, and other electrical inputs to be
monitored. This is used for checking the electrical interfaces during installation and troubleshooting.
Information that is not being received by the GTN is dashed out.
VOR/ILS Indicator (Analog)
The VOR/ILS Indicator (Analog) page allows the CDI connected to the NAV board (P1004) to be ground
checked and allows the NAV indicator interface to be verified.
COM Board Diagnostics Page
The COM Board Diagnostics page displays status of the FPGA flash, nonvolatile memory, synthesizer
lock calibration, and reversionary, as well as the transmitter power limit.
Clear Config Settings
CAUTION
If the intent is to clear all configuration settings, touch the Clear Config Settings key.
Touching the Clear Config Settings key opens a confirmation window to reset all of the
settings stored in the configuration module to their defaults.
190-01007-B1
Rev. 4
GTN 6XX/7XX Part 27 AML STC Maintenance Manual
Page 3-18