Garmin G1000 NAV III Line Maintenance Manual page 22

1.4.7 Data Transmission Indicators
Several configuration screens utilize indicator light to show data and/or component status. Unless otherwise
noted, the following applies to all such indicators:
•
Green Light: Expected discrete data is successfully received and true, or status is good.
•
Red Light: Expected discrete data is not received or is invalid, or status is bad.
•
No Light (Black): No discrete data is expected, or it is received successfully and off, or status is not
received or is invalid.
1.4.8 Configuration Page Protection
The configuration mode contains pages that display various settings that are critical to aircraft operation and
safety. At these pages, the technician is unable to modify or change settings unless they are authorized and
equipped to do so. However, most protected pages are viewable to allow technicians greater system awareness
for troubleshooting.
1.4.9 G1000 Loader Card Interface
The G1000 Loader Card interface exists to provide a means of loading software and configuration files to the
system. The G1000 Loader Card uses a 128 MB Secure Digital (SD) data card that contains all necessary files to
load software and configuration settings to all G1000 LRUs.
Nearly all software and configuration parameters are pre-determined by Garmin and/or Cessna. During removal
and replacement of LRUs, software and configuration files may need to be reloaded. To satisfy TC/STC
requirements for a specific aircraft, it is critical that the technician use the correct G1000 Loader Card part
number. Each Loader Card's part number defines all files found on the card for a specific G1000 installation.
Note that certain configuration settings, such as aircraft registration number ('N#') must be entered manually. A
sample procedure for loading software and configuration settings can be found in Section 4 of this manual.
Always use caution when using G1000 Software Loader Cards during maintenance. The G1000
system is designed to immediately initialize the card upon power-up. On-screen prompts must be
given careful attention in order to avoid potential loss of data. Always read and thoroughly
understand all related information before attempting to use the G1000 Software Loader Cards.
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G1000 Nav III Line Maintenance Manual
190-00352-00