Northern Airborne Technology AA83-001 rev.4.00 - Manual (Page 36)

AA83-001 InterMUSIC™ Stereo Intercom System Manual SM09-2A Rev. 4.00
3.2.3
Important Operating Considerations
Ensure headsets are of good quality and are installed correctly. NEVER USE MONO
AIRCRAFT HEADSETS in this system unless the installation has been specifically
wired for mono operation, as they will short out one side of the AA83-001 power
amplifier when installed in stereo jacks. This may result in eventual unit failure, which
IS NOT COVERED BY WARRANTY. Use only stereo headsets with this system, and
be sure the aircraft is placarded appropriately.
3.2.4 Installation Adjustments
Using individual level trimpots, an approved dealer can adjust the following audio levels
during service, or at the time of installation.
•
• •
• • •
•
Music mute level RX Balance ICS Balance
Music Bass level RX volume level ICS Bass level
Music balance
3.3 Controls and Indicators
Dual Control:
ICS Volume (inner)
Pilot VOX (outer) Dual Control:
Music Volume (inner)
Copilot VOX (outer)
MODE Switch
Annunciator
3.3.1 ICS VOL/PILOT VOX
This control is a fluted concentric rubber knob on the left side of
the front panel.
The inner (front) knob is the ICS VOL control, which is used to
set
Intercom volume. It is at minimum volume when fully counter-
clockwise (ccw). As the knob is rotated clockwise(cw), the ICS
volume for crew and PAX increases. The ICS is muted during
transmit operations.
The outer (rear) knob is the PILOT VOX control, that controls VOX for the pilot only.
For full information on VOX operation, see section 3.3.3 below.
Page 3-2 Feb 8, 2006
ENG-FORM: 806-0106.DOT
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