____________________________________________________________________
Cirrus Perspective™ Line Maintenance Manual
Page 5-73
190-00920-00
Rev.
E
GRS
77
Related
Alerts
(continued)
Message
Cause
Solutions
MANIFEST
–
AHRS1
software
mismatch.
Communication
Halted.
The
system
has
detected
an
incorrect
software
version
loaded
in
GRS
77
#1.
•
Load
correct
software
version
in
the
GRS77.
MANIFEST
–
AHRS2
software
mismatch.
Communication
Halted.
The
system
has
detected
an
incorrect
software
version
loaded
in
GRS
77
#2.
AHRS
MAG
DB
–
AHRS
magnetic
model
database
version
mismatch.
The
system
has
detected
a
magnetic
model
database
version
mismatch.
•
Reference
Garmin
SB
0533
for
update
instructions.
5.9.3
GMU
44
Related
Alerts
Message
Cause
Solutions
MANIFEST
–
GMU1
software
mismatch.
Communication
Halted.
The
system
has
detected
an
incorrect
software
version
loaded
in
GMU
44
#1.
•
Load
correct
software
version
in
the
GMU44.
MANIFEST
–
GMU2
software
mismatch.
Communication
Halted.
The
system
has
detected
an
incorrect
software
version
loaded
in
GMU
44
#2.
HDG
FAULT
–
AHRS1
magnetometer
fault
has
occurred.
A
fault
has
occurred
in
GMU
44
#1.
•
Check
GMU
44/GRS
77
interconnect
for
faults
•
Replace
GMU
44
#1
•
If
problem
persists,
replace
GRS
77
#1
HDG
FAULT
–
AHRS2
magnetometer
fault
has
occurred.
A
fault
has
occurred
in
GMU
44
#2.
•
Check
GMU
44/GRS
77
interconnect
for
faults.
•
Replace
GMU
44
#2
•
If
problem
persists,
replace
GRS
77
#2
Summary of Contents for Cirrus Perspective SR20
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