Gia 63 Troubleshooting - Garmin G1000 System Maintenance Manual

5.10

GIA 63 Troubleshooting

5.10.1
COM
Symptom
Weak COM transmit power
Weak COM receiver
No COM sidetone
5.10.2
NAV
Symptom
Weak NAV receiver
5.10.3
G/S
Symptom
Weak G/S receiver
Page 5-54
Revision 1
Recommended Action
•
Switch GIA1 and GIA2, to verify location of problem:
If problem follows unit, replace GIA.
If problem does not follow unit, check COM antenna and cabling for
faults.
•
Switch GIA1 and GIA2, to verify location of problem:
If problem follows unit, replace GIA.
If problem does not follow unit, check COM antenna and cabling for
faults.
•
Switch GIA1 and GIA2, to verify location of problem:
If problem follows unit, replace GIA.
If problem persists, replace GMA1 with a known good unit.
If problem persists, reinstall original GMA1 and replace GMA2.
Recommended Action
•
Set up a NAV/COM Ramp Test Set to radiate a test signal.
•
Switch GIA1 and GIA2, to verify location of problem:
If problem follows unit, replace GIA.
If problem does not follow unit, check NAV antenna, coupler, and
cabling for faults.
Recommended Action
•
Set up a NAV/COM Ramp Test Set to radiate a test signal.
•
Switch GIA1 and GIA2, to verify location of problem:
If problem follows unit, replace GIA.
If problem does not follow unit, check NAV antenna, coupler, and
cabling for faults.
G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
190-00716-01