____________________________________________________________________
Page 5-66
Cirrus Perspective™ Line Maintenance Manual
Rev. E
190-00920-00
5.8.3
NAV
Symptom
Recommended
Action
Weak
NAV
receiver
•
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.
5.8.4
G/S
Symptom
Recommended
Action
Weak
G/S
receiver
•
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.
5.8.5
COM
Related
Alerts
Message
Cause
Solutions
COM1
SERVICE
–
COM1
needs
service.
Return
unit
for
repair.
The
system
has
determined
COM1
needs
service.
•
Replace
GIA1.
COM2
SERVICE
–
COM2
needs
service.
Return
unit
for
repair.
The
system
has
determined
COM2
needs
service.
•
Replace
GIA2.
Summary of Contents for Cirrus Perspective SR20
Page 2: ......
