Cessna 172SPHUSR05 Pilot Operating Handbook page 451

CESSNA
MODEL 1 72S
TELEPHONE MODE (TEL) - The telephone mode is not available on
this installation.
SPLIT MODE (COM 1 /2 OR COM 211 ) -- Moving the mic selector switch
to COM 1 12 places the KMA 28 into "split mode". This places the pilot
on Com 1 and the copilot on Com 2. Switching to COM 2/1 wil l reverse
the "split mode" radio selection.
mode operations, consult the Bendix/King Silver Crown Plus Avionics
Systems Pilot's Guide, PIN 006- 1 8 1 1 0-0000.
5. SWAP INDICATOR -- The swap function is not available on this
installation.
6. TRANSMIT I NDICATOR -- This indicator illuminates when either Push­
to-Tal k (PTT) switch is pressed.
7. SPEAKER SWITCH (SPR) -- This switch will place all selected audio on
the cockpit speaker when selected.
8. CREW ICS/MUSIC 1 MUTE BUTTON (ICS) -- The front panel ICS
button controls muting of the entertainment source. Pushing this button
places the ICS in Karaoke (or sing along) mode, which inhibits the soft
mute feature.
transmissions will not be missed due to entertainment playing.
there is radio reception or intercom conversation, the music level is
dropped to background level.
ceases, the level gradually returns to normal.
music to continue u ninterrupted by intercom or radio traffic when
cockpit workload is appropriate.
the mute inhibit function.
in spiit mode, the pUot and copilot are isolated from each other on the
intercom, simultaneously using their respective radios. Depressing the
ICS button in split mode will activate VOX intercom between the pilot
and copilot positions.
between the crew.
intercom function.
9.
PHOTOCELL FOR AUTOMATIC D I MMING O F MARKER BEACON
LIG HTS AND SELECT BUTTON -- The photocel l in the faceplate
automatically dims the marker lights as wel l as the green annunciators
in the Speaker Audio Select Buttons for night operation.
Figure 1 . Bendix/King KMA 28 Audio Selector Panel (Sheet 3 of 5)
Dec 30/00
SUPPLE M E NT 20 - FAA APPROVED
For more information regarding split
The soft mute feature assures that the aircraft radio
When the radio or intercom traffic
Pushing the button again will release
This permits intercommunication when desired
Pressing the ICS button again disables the crew
S ECTION 9 - SU PPLEM ENTS
Karaoke allows the
When
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