JA95-001 Audio Controller
Operating Manual
Page 6
Note
: Numbers in parentheses refer to the front panel
controls shown in section 3.2.
(12)
ICS Volume Control
3
Normal Operation Mode
The JA95-001 is in Normal mode when the front panel EMER / NORM
switch (
4
) is in the NORM position and suitable electrical power is
supplied to the unit.
3.1
Panel Lighting
The legends and annunciators will be illuminated (when appropriate) and
dim through the aircraft lighting buss.
3.2
Receiving
When the JA95-001 receives an incoming transmission on a transceiver
or receiver that has been selected, either by the white transceiver receive
switches
(1)
or the transmit selector
(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 front panel RX volume control (
3
). It will be muted if the
unit is transmitting and muting of receive audio during transmit is enabled.
3.3
Transmitting (Transmit Operation)
To select a transceiver, rotate the Transmit Select Switch until it aligns
with the line leading to the Transceiver Select switch legend
(1)
- default
legends COM 1, COM 2, AUX, FM 1, FM 2, or PA. The corresponding
Transmit Select annunciator will illuminate.
When the user’s TX PTT is activated, the unit will transmit on the selected
transceiver, and the dead front Transmit Annunciator
(7)
will illuminate
‘TX’. All MIC and sidetone audio will be routed to the user’s phones, and
any music will be muted for the duration of the transmission.
This is a rotary control used to
adjust the volume of all ICS audio
to suit the ambient conditions.
Rotating the control completely
cw gives rated level, and
completely ccw reduces the
output to minimum level.
