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5.9
GIA 63 Troubleshooting
5.9.1
COM
Table 5-33. COM Troubleshooting
Symptom
Recommended Action
Check COM antenna and cabling.
Weak COM transmit power
Switch GIA1 and GIA2, to identify whether the unit or connectors/wiring is at
fault (Both GIAs must be configured when swapped, see Section 3.5):
9
If problem follows unit, replace defective unit per Section 6.3.
Check COM antenna and cabling.
Weak COM receiver
Switch GIA1 and GIA2, to identify whether the unit or connectors/wiring is at
fault (Both GIAs must be configured when swapped, see Section 3.5):
9
If problem follows unit, replace defective unit per Section 6.3.
Switch GIA1 and GIA2, to identify whether the unit or connectors/wiring is at
fault (Both GIAs must be configured when swapped, see Section 3.5):
No COM sidetone
5.9.2
9
If problem follows GIA, replace defective GIA per Section 6.3.
9
If problem persists, replace defective GMA per Section 6.3.
NAV
Table 5-34. NAV Troubleshooting
Symptom
Recommended Action
Check NAV antenna, coupler, and cabling.
Weak NAV receiver
Switch GIA1 and GIA2, to identify whether the unit or connectors/wiring is at
fault (Both GIAs must be configured when swapped, see Section 3.5):
9
5.9.3
If problem follows unit, replace defective unit per Section 6.3.
G/S
Table 5-35. GS Troubleshooting
Symptom
Recommended Action
Check G/S antenna, coupler, and cabling.
Weak G/S receiver
Switch GIA1 and GIA2, to identify whether the unit or connectors/wiring is at
fault (Both GIAs must be configured when swapped, see Section 3.5):
9
5.9.4
If problem follows unit, replace defective unit per Section 6.3
GPS
Table 5-36. GPS Troubleshooting
Symptom
Recommended Action
Ensure that a cell phone or a device using cell phone technology is not turned
on (even in a monitoring state) in the cabin.
Check GPS antenna and cabling
Will Not Acquire Satellites
Check date and time on Date/Time Setup Page
9
If date and time is incorrect, correct date and time.
Switch GIA1 and GIA2, to verify location of problem:
9
Page 5-50
Revision G
If problem follows unit, replace defective unit.
G1000 System Maintenance Manual – Diamond DA40/40F
190-00545-01