N300-001 and N300-002 Audio Controller
SM60 Installation and Operation Manual
May 26, 2012 Rev: 2.00
Page 2-3
ENG-FORM: 805-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
2.4.3
Mechanical Mounting
Before the unit is mounted, make all functional tests, and trimpot adjustments. Be sure the harness has
enough clearance to permit the unit to be pulled out for re-adjustment, if needed later. Check that the unit
is securely fastened to the Dzus rail, and that the connector locks are tightened before any flight is
attempted.
2.4.4
Post-Installation Checks
2.4.4.1
Voltage/Resistance Checks
Do not attach the N300-001 until the following conditions are met.
Check the following:
a) Check P101, pins <2>, <4>, <19> and <21> for continuity to ground when the relevant
transmit key is activated.
b) Check P101, pins <36> and <38> for continuity to ground (less than 0.5
:
).
c) Check P102, pins <3>, <9>, <10> and <11> for continuity to ground (less than 0.5
:
).
d) Check P102, pins <1>, <2> and <8> for +28 Vdc relative to ground.
e) Check P103, pins <17> and <34> for continuity to ground when the relevant switch is closed.
Do not attach the N300-002 until the following conditions are met.
Check the following:
a) Check P101, pins <2>, <4>, <19> and <21> for continuity to ground when the relevant
transmit key is activated.
b) Check P101, pins <36> and <38> for continuity to ground (less than 0.5
:
).
c) Check P102, pins <3>, <9>, <10> and <11> for continuity to ground (less than 0.5
:
).
d) Check P102, pins <1>, <2> and <8> for +28 Vdc relative to ground.
2.4.4.2
Power On Checks
Power up the aircraft’s systems and confirm normal operation of all functions of the
N300-001 or
N300-002. Refer to Section 3 (Operation) for specific operational details.
a) Check for correct radio audio and adjust for acceptable level.
b) Check all installed functions, and check the ICS and TX functions for all users.
Note:
Significantly different headsets may have different microphone characteristics.
c) Check preset adjustments are completed before aircraft departure.
d) Check that the unit and its mating connector are secured before departure.
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.
