____________________________________________________________________
Cirrus Perspective™ Line Maintenance Manual
Page 5-95
190-00920-00
Rev.
E
•
PFT
Step
4:
System
initializing,
verify
AHRS
monitor
This
step
checks
to
make
sure
the
AHRS
monitor
is
valid
and
not
reporting
an
AHRS
failure.
NOTE:
AHRS
monitor
will
be
assumed
valid
if
on
the
ground.
Make
sure
the
GRS
77
and
GDC
74A
are
turned
on
and
sending
valid
data.
•
PFT
Step
5:
System
initializing,
verify
configured
servos
are
valid
This
step
checks
to
make
sure
that
none
of
the
servos
are
reporting
any
type
of
failure.
Note
that
trim
servos
will
report
a
failure
on
stuck
MET
switches.
Make
sure
the
MET
switch
is
not
stuck.
Cycle
power
on
all
servos.
•
PFT
Step
6:
System
initializing,
verify
cross
GIA
valid
This
step
checks
to
make
sure
the
cross
‐
side
GIA
is
online
and
communicating
with
all
servos
from
ARINC
485
data
lines.
The
cross
‐
side
GIA
must
also
pass
its
AHRS
monitoring.
Make
sure
both
GIAs
are
online
and
communicating
with
all
servos.
•
PFT
Step
7:
Verify
cross
GIA
initialized
This
step
checks
to
make
sure
the
cross
‐
side
GIA
is
initialized.
Cycle
power
on
all
servos
and
GIAs.
Make
sure
the
PFD
and
MFD
are
turned
on.
•
PFT
Step
8:
Verify
servo
type
This
step
checks
to
make
sure
the
servos
are
the
correct
type.
Make
sure
the
servos
are
correct
type.
•
PFT
Step
9:
Verify
servo
first
certification
data
This
step
checks
to
make
sure
the
servos
and
the
GIAs
have
the
same
certification
gains.
Reload
the
certification
gains
to
all
GIAs
and
servos.
•
PFT
Step
10:
Verify
servo
second
certification
data
This
step
checks
to
make
sure
the
servos
and
the
GIAs
have
the
same
certification
gains.
Reload
the
certification
gains
to
all
GIAs
and
servos.
•
PFT
Step
11:
Updating
servo
RTC
This
step
sets
the
servo
system
time
to
the
GIA
system
time.
If
fails
this
step,
GIA’s
cannot
communicate
with
servos.
Check
for
GIA/servo
data
path
issues
and
power/AP
disconnect
loss.
Summary of Contents for Cirrus Perspective SR20
Page 2: ......
