Selector Switches - Cessna 182 1975 Owner's Manual

RADIO
SELECTOR
SWITCHES
RADIO SELECTOR
SWITCH
OPERATION.
Operation
of
the
radio equipment
is normal
as covered
in
the
respec-
tive
radio manuals. When more
than
one radio is installed, an
audio
switching
system
is necessary.
Audio switching
is accomplished by a
series
of
selector
switches located
at
the top-center
of
the
instrument
panel.
They
are
rectangular
in
shape,
internally
lighted,
and
the
face of
each
switch
is labeled
to
define
the
system
it controls.
The selector
switches
have
one function when depressed
and another function when
extended.
They are designed
to
lock when pushed
in
to the
depressed
position;
they
can be extended
by
pressing
full in and
allowing
them to
release
to the
extended position.
Certain
combinations of
switches
are
interlocked
to
prevent more
than
one system
from
being utilized
at
the
same
time.
Depressing
one interlocked
switch automatically
disengages
the
others.
All
of
the
selector
switches
are
lighted
anytime
the
master
switch is on. When a switch is depressed,
its light becomes brighter.
The light intensity of
a
depressed
switch can be controlled
with a rheostat
labeled
AUDIO
SW, BRT located
to the
right of
the
selector
switches.
The
following
information describes
1;he various
selector switch functions.
TRANSMITTER SELECTOR
SWITCH.
When
two transmitters
are
installed,
the
microphone must
be
switched
I
RADIO
SELECTOR SWITCHES
TYPICAL ARRANGEMENT
OTR
TR
REC
REC
DME ADF
'
2
TTER
SPEAKER-HEADPCHHENSE
SELECTOR
SWITCHES
(Switches control
speaker-head-
phone function
of communication
and navigation
radio
equipment)
Figure
7-1.
7-4