Textron Cessna 172R - Page 488

SECTION
9
-
SUPPLEMENTS
SUPPLEMENT
20
-
FAA
APPROVED
CESSNA
MODEL
172R
10.
INTERCOM
MODE
SELECT
(ISO-ALL-CREW)
-
A
three-position
mode
switch
that
allows the
pilot
to
tailor the intercom
function
to
best
meet
the
current
cockpit
situation.
ISO
-
(Up
Position
)
The
pilot
is
isolated
from
the
intercom and is
connected
only
to
the
aircraft
radio
system.
The
pilot
will
hear
the
aircraft
radio
reception
(and
sidetone
during
radio
transmissions).
The
copilot
will
hear
passenger’s
intercom and
Entertainment,
while
passengers
will
hear
copilot
intercom
and
Entertainment. Neither
will
hear
aircraft
radio
receptions
or
pilot
transmissions.
ALL
-
(Middle
Position)
All
parties
will
hear
the
aircraft
radio and
intercom.
Crew
will
hear
Entertainment,
passengers
will
hear
Entertainment
During
any
radio
or
intercom
communications,
the
music volume
automatically
decreases. The
music volume increases
gradually
back
to
the
original
level
after
communications have been
completed.
CREW
-
(Down
Position)
Pilot and
copilot
are
connected
on
one
intercom
channel and
have exclusive
access
to
the
aircraft
radios.
They
may
also
listen
to
Entertainment.
Passengers
can
continue
to
communicate
among
themselves
without
interrupting
the
crew
and also
may
listen
to
Entertainment.
Anytime
the
KMA
28
is
in
either the
COM
1/2
or
COM
2/1
split
modes,
the
pilot
and
copilot
intercom is controlled
with
the
ICS
button.
The
passengers
will
maintain
intercommunications,
but
never
hear
aircraft
radios.
MODE
PILOT
HEARS
COPILOT
HEARS
PASSENGER
HEARS
COMMENTS
Isolate
A/C
Radios
Pilot
Sidetone
(during
ratfio
transmission)
Entertainment
is
Muted
Copilot
and
pas¬
senger
intercom
Entertainment
Passenger
and
Co¬
pilot
intercom
Entertainment
litis mode
allows the
pilot
to
communicate without
the
others bothered
by
the
con¬
versations.
Copilot
and
pas¬
sengers
can
continue
to
communicate and listen
to
music.
AD
Pilot
Copilot
A/C
Radio
Passengers
Entertainment
Copilot
Pflot
A/C
Radio
Passengers
Entertainment
Passengers
Pitot
Copilot
A/C
Radio
Entertainment
litis mode
allows
all
to
hear
ratio
reception
as
wen
as
communicate
on
the inter¬
com.
Music
and intercom is
muted
during
Intercom
and
radio
communications.
Crew
Pilot
Copilot
A/C
Radio
Entertainment
Copilot
Pflot
A/C
Radio
Entertainment
Passengers
Entertainment
This mode
allows the
pilot
and
copilot
to concentrate
on
flying
while
the
passen¬
gers
can
communicate
amongst
themselves.
Figure
1
.
Bendix/King
KMA
28
Audio
Selector
Panel
(Sheet
4
of
5)
S20-8
Dec
30/00
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