N300-001 and N300-002 Audio Controller
SM60 Installation and Operation Manual
May 26, 2012 Rev: 2.00
Page 2-4
ENG-FORM: 805-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
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.
2.5
Adjustments and Connections
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. The internal adjustments are located along the sides and top of the unit.
Refer to Options drawings N300\001\404-0, N300\001\404-1, N300\001\404-2, N300\002\404-0 and
N300\002\404-1.
2.5.1
Internal Adjustments and Selections
2.5.1.1 ICS
Tie
ICS Tie selects the gain of intercom channel to match number of units on the tie line.
2.5.1.2
RX Input Level
RX Input Level selects the input level for each RX input to match radio output.
2.5.1.3 Sidetone
Enable
Sidetone Enable enables and disables the
–
6dB attenuation circuit for radio sidetone.
2.5.1.4 TX
Mic
Output
TX Mic Output provides for adjustment of each TX mic output to match the radio mic input requirements.
2.5.1.5 CVR
CVR provides for adjustment of the NORM/EMER CVR audio output.
2.5.1.6 VOX
Delay
VOX Delay provides for adjustment of the VOX delay associated with the #1 and #2 NORM and EMER
microphone circuits.
2.5.1.7 VOX
Preset
VOX Preset provides for adjustment of VOX Preset level (50
r
10 uVrms).
