Piper SENECA III - Page 379

PIPER
AIRCRAFT
CORPORATION
SECTION 9
PA-34-220T, SENECA
III
SUPPLEMENT 19
ROLi
DISPLAY
FUNCTION
HOLD
pushbutton
Retains
the
display
(NAV and
weather)
when
(push-on/push-off)
button
is
actuated
(push-on).
The
word
HOLD
flashes
in the
upper
left
corner
of
the display,
The
weather
or
ground
mapping
image
last
pre-
sented
is
retained
(frozen)
on
indicator
display
in order
to
evaluate the
significance of
storm
cell
movement.
Switching
back
to
normal
op-
eration
(pressing
HOLD
pushbutton
a
second
time)
reveals
direction
and
distance
of
target
movement
during HOLD period.
In
HOLD,
the
antenna
continues
to
scan
and
a non-
updated
display
will continue
to
be presented
as
long
as power
is
supplied
to
the
system.
A
change
in
range
selection,
with
indicator
in
HOLD
results
in
a
blank
screen.
Wx pushbutton
Selects
the
weather
mode
(Wx) when
pressed.
Pushbutton
switch
returns
to
normal
position
when
released.
"WX"
appears
in
display,
WxA
pushbutton
Selects
weather
alert mode
(WxA) when
(push-on
push-off) pressed,
Red
area
flashes.
Returns
to
previous
mode (Wx
or
MAP)
upon
push-off.
MAP
pushbutton
Selects
ground
mapping mode
(MAP)
when
pressed.
Mechanical operation
same
as
Wx.
FLT
LOG
Operational
only
when
optional
NAV
equip-
pushbutton
ment
is
connected. When
actuated,
will
display
the
flight
log
information stored in
the
optional
NAV
programmer.
Ten
waypoints
and
course
information
may
be
displayed
(e.g.,
from
NP-204]A).
If
a
Remote
Computer
Unit is
not
connected,
the
words
"NO
LOG"appear in
the
lower
left
corner.
CONTROL/DISPLAY
FUNCTIONS
(cont)
Table
4-3
(cont)
ISSUED:
FEBRUARY
25,
1982 REPORT:
VB-1110
5 of 6,
9-129
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