Anodyne Electronics Manufacturing AA83-001 Installation And Operation Manual - page 13
AA83-001 Int
erMUSIC™ Stereo Intercom System
SM09-2 Installation and Operation Manual
April 17, 2012 Rev: 5.00
Page 2-5
ENG-FORM: 805-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
2.3.8.1
Voltage/resistance checks
Do not attach the AA83-001 until the following conditions are met.
Check the following:
a) Check
P101,
pin
for +9 to +32 Vdc relative to ground.
b) Check
P101,
pin
for continuity to ground (less than 0.5
:).
c) Check
P101,
pins
andfor continuity to ground (less than 0.5
:) when the relevant ICS
switch is keyed.
d)
Check all mic, phone, music, and key lines for shorts to ground or adjacent pins. Check all key
lines for correct operation.
2.3.8.2
Power On checks
Install the AA83-
001 and power up the aircraft’s systems, and turn on the radios and accessories
required. Verify normal operation of all functions. Refer to Section 3 for specific operation details.
a)
Begin with only the pilot's headset installed, no hand mic. Check for correct radio operation (both
receive and transmit) and ICS operation. Check yoke (or cyclic) switch action.
b)
If there is a music source in the system turn it on and verify that music is heard in all modes
except PLT ISO. Check for proper mute operation.
Note: Unusual buzzes, hums or other background audio may be symptomatic of multiple grounds or
noisy external systems sharing the same wire bundle. Incorrect jack wiring is a common fault,
especially for passenger stations, and may cause loss of audio, a tone on the headset lines, or
other problems.
c)
Plug in the copilot's headset. Check for correct radio and ICS operation. Check pilot's transmit
priority. Check yoke or cyclic switch functions, if applicable.
d)
Plug in the hand mic (if applicable to the installation), and test for correct operation in all modes.
It must activate the transmitter(s) in all cases.
e)
Plug in any remaining headsets, and check for correct ICS operation.
f)
To verify proper operation, all functions and levels should be checked in-flight.
Be sure headsets are of good quality and are installed correctly. Unless the AA83-001 has specifically
been wired for mono operation NEVER USE MONO AIRCRAFT HEADSETS in the system, 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.
2.3.9 Final
Check
Fly the aircraft and check levels and operation of all functions. You may wish to change Bass or Balance
controls after flight, depending on how the system performs with regard to ambient noise.
Upon satisfactory completion of all performance checks, make the required log entries and
complete the necessary Regulatory Agency paperwork before releasing the aircraft for service.