JA95-001 Audio Controller
Operating Manual
Page 8
3.8
Music Operation
Music to the headphones will be muted by incoming audio (ICS, Receive,
Direct or Alert Audio) or if the unit is transmitting. When the incoming
audio has ended, the music will gradually return to the previous level.
4
Emergency Operation Mode
Emergency mode can be selected by the Mode switch on the front panel,
or entered automatically if power to the unit is lost.
4.1
Auto Emergency Mode
If the unit is in emergency mode because power has been lost to the unit,
the sum of the COM 1 transceiver, NAV 1 receive, and DIRECT AUDIO
will be routed to the pilot’s phones and the CVR. The pilot's microphone
and transmit key are connected to the COM 1 transceiver. No other
function in the JA95 will operate when power is lost. All indicator LEDs,
legends and annunciators will be dark.
4.2
Selected Emergency Mode
If the unit is in emergency mode because the EMER / NORM switch is in
the EMER position and sufficient power is applied to the JA95, the sum of
the COM 1 receive, NAV 1 receive, DIRECT AUDIO and Alert audio will
be routed to the pilot’s phones and the CVR. The pilot's microphone and
transmit key are connected to the COM 1 transceiver. The pilot is
disconnected from the ICS. The COM 1 transceiver and NAV 1 receiver
and DIRECT AUDIO are not available to the other users. All other
functions of the JA95 will operate. The LEDs, legends and annunciators
will retain normal functionality
