AEM SM46, Installation And Operation Manual

Page: 16 / 55

N335 Series Audio Controller
SM46 Installation and Operation Manual
May 18, 2012 Rev: 2.00 Page 2-4
ENG-FORM: 805-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
2.4.6 Post Installation Checks
WARNING:
High volume settings can cause hearing damage .
Set the headset volume control to the minimum volume setting prior to
conducting audio tests, and slowly increase the headset volume to a
comfortable listening level.
2.4.6.1 Voltage/Resistance Checks
These instructions apply to all N335 models unless otherwise indicated. Do not attach the N335 until the
following conditions are met.
Check the following:
a) P102 pins <1>, <2> and <8> for +28 Vdc relative to ground.
b) P102 pins <3>, <9>, <10> and <11> for continuity to ground.
2.4.6.2 Power On Checks
Power up the aircraft’s systems and confirm normal operation of all functions of the
N335. Refer to
Section 3 (Operation) for specific operational details.
a) Turn on the radios and accessories required for the system.
b) Check for correct radio audio and adjust for acceptable level.
c) Run through all installed functions, and check the ICS and TX functions for all users. Refer to
Section 3 for specific operation details.
Notes : Significantly different headsets may have different mic characteristics.
The David Clark M-7 mic is much more active than the M-4 or M-1 mics, and may
aggravate headset imbalance if used in a mixed system.
d) If any preset requires adjustment, be sure this is carried out before the aircraft leaves, and that
the unit and its mating connector are secured before departure. Make all required log book
entries, electrical load, weight and balance amendments and other paperwork as required by your
local regulatory agency.
Note : The unit is shipped from the factory with all internal adjustments set to the normal test levels. Once
installed in the aircraft, it may be desirable to change some of these settings to best suit the local
operating environment. See Section 2.5 for adjustment information.
Upon satisfactory completion of all performance checks, make all required log book entries, electrical
load, weight and balance amendments and other documentation as required by your local regulatory
agency before releasing the aircraft for service.