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

Interfacing LRU is not powered
Interfacing LRU not configured
Interfacing LRU does not have
compatible software version
Verify configuration settings
Verify proper software version
190-02246-C2
Rev. 3
Crosstalk error <External LRU>
service required
Maintenance
Log Message
Crosstalk Error
Cause Cause
System ID set on GI 275
is different from that on
the external LRU
properly
Incorrect wiring
Corrective Corrective
Action Action
Verify power to unit Ensure configured
System ID on GI 275
and external LRU are
the same
Verify wiring

Figure 4-15 External LRU Alert Message Troubleshooting

External LRU
Alert Messages
Service soon
Maintenance
Log Message
GTX 345 reports
config module
needs service
Corrective
Action
Troubleshoot in
accordance with the
GTX 3X5
maintenance
manual
Service soon
Maintenance
Log Message
System configuration module
has failed or is missing
Cause
Configuration module
not installed correctly
Configuration module
has failed
Corrective
Action
Verify configuration
module wiring
Replace
configuration
module
If fault persists,
contact Garmin.
GI 275 Part 27 AML STC Maintenance Manual
Page 4-23