Figure 4-15 Gi 275 Alert Message Troubleshooting - Garmin GI 275 Maintenance Manual

Demo mode,
do not use in
flight
Maintenance
Log Message
Unit in demo mode
Cause
Unit is in demo mode
Corrective
Action
Set unit to normal mode by
deselecting "Simulate Inputs"
from the main menu in
configuration mode
190-02246-11
Rev. 1
Backlight Service
calibration lost required
Maintenance
Log Message
GDU software mismatch
Cause
One or more GI 275
LRU in the system have
different software
versions
Corrective Corrective
Action Action
Return GI 275 to Garmin
Ensure all GI 275 units
for service
are loaded with the
same software version

Figure 4-15 GI 275 Alert Message Troubleshooting

GI 275 Alert Messages
Main touch screen
error
Maintenance
Log Message
Main Board Touch
Screen Error
Cause
Touch screen is not The display knob has been
responding
Display knob is stuck in the
Corrective
Action
Return GI 275 to
Garmin for service
Free display knob from the
Sheet 1 of 2
Key stuck: Key knob Main board system
is stuck fault
Maintenance Maintenance
Log Message Log Message
Main Board SFD Corrupt
System detects
stuck unit knob
Main Board Boot Block Corrupt
Main Board Key Region Corrupt
Main Board Key Region Missing
Cause Cause
pushed for more than
30 seconds
Corrupt software
image
pushed position
Corrective Corrective
Action Action
Release display knob Reload GI 275
software
pushed position
If fault persists,
contact Garmin.
GI 275 Part 23 AML STC Maintenance Manual
Page 4-18