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Page 5-10
G1000 System Maintenance Manual
Rev. A
190-00903-00
SELECT UNIT
―
PFD1
RS-232 WINDOW
Channel LRU Indicator
Status
PFD1/GMC 710 or GMC 715 data path is functioning
correctly.
PFD1/GMC 710 or GMC 715 data path is not
functioning correctly.
•
Check PFD1 Alert Window for PFD1 or GMC
configuration or software error messages. Correct
any errors before proceeding.
•
Verify GMC is powered on by pressing the “ANN
TEST” softkey on the MFD AUX - SYSTEM
STATUS page to see if the key indicators turn on.
•
If GMC indicator lights do not come on, remove unit
and verify power and ground are present at the
GMC connector.
−
If power or ground is not present, troubleshoot
aircraft wiring for faults.
−
If power and ground are present, check the
PFD1 and GMC connector for damaged pins.
•
Swap PFD1 and PFD2 to confirm if the problem is in
the original PFD1.
−
Replace original PFD1 if box turns green after
swapping displays.
•
Replace the GMC.
CHNL 2
GMC 710 or
GMC 715
PFD1/GMC 710 or GMC 715 data path functionality is
unknown. Reload PFD1 configuration file.
