Instruction Manual
G1000 / GFC 700 System Maintenance Manual - 200/B200 Series King Air Page 5-77
190-00915-01 Revision 8
5.20 Software/Configuration Troubleshooting
Problem Solutions
MFD or PFD displays do not power up:
• Ensure that the criteria listed in Section 5.20.1 are
fulfilled for the applicable situation.
• Ensure power is present at display backshell
connector.
• Troubleshoot per the “Blank Display” GDU section.
Software file load fails:
• Ensure that criteria listed in Section 5.20.1 are
fulfilled for the applicable situation.
• Ensure that LRU is reporting data on System
Status page (LRU is ‘ONLINE’). Check data path
wiring as needed.
• Retry software file load or try using a different card.
Ensure that the MFD is not touched during the
loading process.
• Ensure that LRU part number is compatible with
software version and Card Loader. Refer to the
General Arrangement Drawing and to Section 3.8
of this document.
• Replace LRU.
Configuration file load fails:
• Ensure that the criteria listed in Section 5.20.1 are
fulfilled for the applicable situation.
• Ensure that LRU is reporting data on System
Status page (LRU is ‘ONLINE’). Check data path
wiring as needed.
• Retry configuration file load or try using a different
card. Ensure that the MFD is not touched during
the loading process.
• Ensure that LRU part number is compatible with
Card Loader. Refer to the General Arrangement
Drawing and to Section 3.8 of this document.
• Replace LRU.
GIA1 and/or GIA2 to ‘LRU’ data path not
working
• Ensure that the criteria listed in Section 5.20.1 are
fulfilled for the applicable situation.
• Ensure GIA1 and GIA2 are configured correctly.
• Check wiring, connectors & pins as needed.
Software File Mismatch Alert appears in lower
right corner of PFD when started in normal mode:
• Ensure that proper software file part number and
version were loaded to LRU. Refer to the General
Arrangement Drawing and to Section 5.20.1.
• Check and ensure that correct Card Loader was
used during load process. Refer to the General
Arrangement Drawing.
• Reload software to LRU.
After being in configuration mode, the PFD
displays a red AFCS annunciation and cycling of
the transponder field between valid and invalid
states.
• With the G1000 system powered on, open the
MFD, PFD 1 (PRI), PFD 1 (SEC), and PFD 2
circuit breakers for approximately 30 seconds,
then close the circuit breakers.










