JA94-044 Dual Audio Controller
– AMS44 Compatible
Installation and Operating Manual
Rev A
Page 19
(7) (10)
RX/ICS Volume control and legend
These are two unlit dual rotary knobs that adjust
the receive
(RX) volume ((the smaller, top knob
marked RX) and the ICS volume (the larger,
bottom knob).
Each user can adjust the volumes individually.
Rotating the knobs clockwise (cw) will increase the
volume, and counterclockwise (ccw) will reduce it
Individual radio volume controls should be set to a
nominal level, and then adjusted for changing
flight conditions using this control.
Legend
(9)
Music/Configuration Connector cover (
♫
/io)
This cover is located between the Right User RX/ICS and TX
controls. It protects a music input port compatible with most
music players, and accepts a 3 pole 3.5mm stereo plug with a
slim diameter connector housing.
(This connector is also used during installation to change
configuration settings.)
CAUTION
:
If an unapproved connector or cable is used, damage to the unit or to any attached device may
occur. If in doubt, contact JAC for a list of approved cables, music sources and devices.
3.3
Normal Operation Mode
The JA94-044 is in Normal mode unless EMER mode has been selected via the Left User TX control, or if the power
input is off.
Note
: Numbers in parentheses refer to the front panel controls shown in section 3.2.
3.3.1
Panel Lighting
The legends and annunciators will be illuminated (when appropriate) and dim through the aircraft lighting buss.
3.3.2
Receiving
When the JA94-044 receives an incoming transmission on a transceiver or receiver that has been selected, either by
the white transceiver receive switches (
1
) (
2
) or (
3
) or a transmit selector (
5
) or (
8
), the incoming audio will be directed
to the user’s phones.
The audio level of any incoming transmission will depend upon the level selected by the user's front panel RX volume
control – (
7
) or (
10
). It will be muted if the unit is transmitting and muting of receive audio during transmit is enabled.
ProCS™ can be configured to route no receive audio, Right User receive audio, or Left User receive audio to
passengers.
Side View
