System Maintenance Manual

G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air Page 5-7
190-00682-01 Revision F
PFD 2 RS-232
Channel LRU Indicator Status
CHNL 2 GMC 710
PFD2/GMC 710 data path is functioning correctly.
PFD2/GMC 710 data path is not functioning correctly.
• Verify GMC 710 is powered on.
o If GMC 710 will not power 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, replace
GMC 710.
• Load PFD2 and GMC 710 configuration files.
• Swap PFD2 and PFD1 to confirm if the problem is in the
original PFD2.
o Replace original PFD2 if box turns to a green
checkmark (√) after swapping displays.
• Check the PFD2/GMC 710 interconnect wiring for faults.
Replace GMC 710 if problem remains.
PFD2/GMC 710 data path functionality is unknown. Reload
PFD2 configuration file.