System Maintenance Manual

Page 5-80 G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air
Revision F 190-00682-01
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.