Page 2-24
G1000 Nav III Line Maintenance Manual
Rev. L
190-00352-00
DISCRETE
RVRSNRY MODE 1, 2:
Shows the current status of the reversionary modes.
Reversionary Mode 1 is activated by
the GMA 1347 reversion button. Reversionary Mode 2 is activated by a second GMA 1347, if installed.
Reversionary 1 input is a ground on Pin 58, reversionary 2 input is a ground on Pin 15.
PULSE PER SEC 1, 2:
Shows status of GPS time synchronization inputs (from GIA 63/GIA 63W) to the GDU.
Used for Garmin testing, not useful for troubleshooting.
TEST, DEMO MODE SELECT:
A green box indicates Pin 53/54 is grounded.
These inputs should have a black
box, if either box is green check for connector miswiring or a bent pin.
FPGA:
Shows the condition of the GDU FPGA processor.
If it does not pass the unit may not initialize.
SYS ID 1, 2, 3:
Shows the current system ID assigned to the display.
Green indicates that the System ID pin is
strapped to ground. Black indicates that the System ID pin is left ‘open’ and not strapped to ground. (See Table
below)
PFD #2 is not used in SEP aircraft.
GDU System ID 1
GDU System ID 2
GDU System ID 3
Display Mode
Black Black Green MFD
Black Black Black
PFD
#1
Green Black Black PFD
#2
REMOTE OFF:
Allows the display to control power of a remote system.
Not used in any installation at this
time.
Summary of Contents for G1000 NAV III
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