MD-11 Flight Crew Operations Manual
k
Communications -
Controls and Displays
Comm.30.3
MECH - Illuminates white and a tone sounds when maintenance personnel
are calling from the external power panel. MECH extinguishes when the
flight interphone system is keyed from the cockpit. The hand, boom, or
oxygen mask microphones may be used.
4. Communication Receiver Volume Control Knobs (7)
All volume control knobs on the ACP are illuminated and protrude out with
a white band at the base when pushed on. The knobs are used to control the
volume of the selected radio.
5. INT/RADIO Switch
This switch provides the same function as the PTT switch on the control
wheel. When pushed and held to INT, flight interphone transmission is
possible even though a non-interphone MIC selector is illuminated. When the
switch is held in RADIO and the approppriate radio MIC/CALL switch is
pushed, radio transmission is possible with either the boom or oxygen mask
microphone. The RADIO position overrides flight interphone actuation with
the PTT switch on the control wheel.
6. Navigation Receiver Volume Control Knobs (7)
The knobs control the audio of the NAV systems designated above or below
the selected knob. For an operational description of the VOR 1/2, ILS 1/2,
ADF 1/2, MKR, and DME systems refer to the Instrumentation and
Navigation chapter.
7. PA Button
When the PA button is pushed and held, PA transmission is possible with
either the boom or oxygen mask microphone. The PA volume control knob
controls the volume of the cockpit speakers and headsets. The hand held
microphone cannot be used on PA.
8. CAB Volume Control Knob
Controls cabin/service interphone volume.
October 02, 2006
To Next Page
Loading...