Cessna 152 - Page 220

CESSNA
400
MARKER
BEACON
(TYPE
R-402A)
PILOT'S
OPERATING
HANDBOOK
SUPPLEMENT
AUDIO
CONTROL PANEL
(REFJ
...-----SPEAKE
NAV/COM
AUTO
l 2 3
'·
_,
.:.,,.,_
~
PHONl
1.
OFF/VOLUMECONTROL(OFF/VOL)
-
Thesmall,innercontrolturnstheseton
or
off
~nd
,adjusts
the
audio
listening
level.
Clockwise
rotation
turns
the
set
on
and
increases
the
audio
level
..
2.
MARKER
BEACON
IND.ICATOR
I;..IGHTS -
Indicates
passage
of
outer,
middle,
inner
and
fan
marker
beacons.
The
OUTER
light
is
blue,
the
MIDDLE
light
is
amber
and
the
INNER
and
FAN
light
is
white.
3.
SPEAKER/PHONE
SWITCH
(SPKR/PHN)
-
Selects
speaker
or
phone
for
aural
reception.
4.
HI/LO/TEST
SWITCH
-
In
the
HI
position
(Up),
receiver
sensitivity
is
posi-
tioned
for
airway
flying.
In
the
LO
position
(Center),
receiver
sensitivity
is
positioned
for
ILS
approaches.
In·the
TEST
position
(Down),
the
marker
lights
will
illuminate,
indicating
the
lights
are
operational
(the
test
position
is
a
lamp
test-
function
only).
5.
LIGHT
DIMMING
CONTROL
(BRT)
-
The
large,
outer
control
pr.o~idestlight
dimming
for
the
marker
lights.
Clockwise
rotation
increases
lightm
enSt
y.
Figure
1.
Cessna
400
Marker
Beacon
Operating
Control'>
and
Indicator
Lights
2
1
July
1978