JA95-N22 Audio Controller - Flight Crew - NVG
Installation and Operating Manual
Rev
B
Page 16
(1)
Transceiver Switches
These are six white two-position toggle
switches. When a switch is set to the ‘up’
position, audio from the associated transceiver
is routed to the phones.
The legends (above the switches) are
interchangeable to allow customization.
(Default – COM1, COM2, AUX, FM1, FM2,
FM3.)
(2)
Receiver Switches
These are two blue three-position centre-off toggle switches.
When a switch is set to the ‘up’ or ‘down’ position audio from
the selected receiver is routed to the phones.
The legends (three above and three below the switches) are
interchangeable to allow customization. (Default – NAV1,
NAV2, ADF, M/D.)
Note
: The M/D switch position is used to select both Marker (MKR) and Distance Measuring Equipment (DME).
(3)
Receive Volume Control
This is a rotary knob that adjusts the phones volume of the
receive audio from minimum (CCW) to maximum (CW).
Individual radio volume controls should be set to a nominal level,
and then adjusted for changing flight conditions using this
control.
(4)
Mode Switch
This is a red two-position locking toggle switch. When
set to the ‘up’ position, the unit is Emergency mode,
and when set to the ‘down’ position, the unit is in
Normal mode. The legends are interchangeable to
allow customization. (Default – EMER, NORM.)
The switch is lockable to prevent accidental changing of
the mode. The switch must be lifted to release the lock.
For full information on Emergency and Normal Mode
operation, see sections
3.3
and
3.4
below.
