AA95-766 Single Channel Audio Controller
SM95-766 Installation and Operation Manual
June 20, 2012 Rev: 3.00
Page 2-2
ENG-FORM: 805-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
2.3.3
Cabling and Wiring
All unshielded wire shall be selected in accordance with AC43.13-1B Change 1, Paragraphs 11-76
through 11-78. Wire types should be to MIL-W-22759 as specified in AC43.13-1B Change 1, Paragraphs
11-85, 11-86, and listed in Table 11-11. For shielded wire applications, use Tefzel MIL-C-27500 shielded
wire with solder sleeves (for shield terminations) to make the most compact and easily terminated
interconnect. Follow the wiring diagrams in Section 2.6 as required.
Allow 3 inches from the end of the wire to the shield termination to allow the hood to be easily installed.
Note that the hood is a ‘clamshell’ hood, and is installed after the wiring is complete.
Aircraft harnessing
should permit the unit to be lowered from the panel for easy access to all side adjustments. Do NOT
mount the unit until all adjustments have been carried out.
All wiring should be at least 22 AWG, except power and ground lines, which should be at least 20 AWG.
Ensure that all ground connections are clean and well secured, and that the unit shares no path with any
electrically noisy aircraft accessories such as blowers, turn and bank instruments or similar loads. Power
to this unit must be supplied from a separate breaker (1 A) and not attached to any other existing breaker
without additional protection.
2.3.4 Adjustments
The unit ships 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 on the sides of the unit and are as follows:
2.3.4.1 Right
Side
Panel
Adjustments
The
ICS GAIN LEVEL
trimpot adjusts the internal gain of the intercom.
The
MIC LEVEL
trimpot is used to adjust the audio level of the pilot microphone.
2.3.4.2
Left Side panel adjustments
The trimpots on the left side panel are used to adjust the levels of audio in the user’s headphones. Rotating the
trimpots clockwise (cw) increases the level, and counterclockwise (ccw) reduces it.
The
DIR AUD LEVEL
trimpot is used to adjust the level for the Direct Audio signal.
The
S/T LEVEL
trimpot adjusts the internal gain of the sidetone of the selected transceiver (from the front
panel).
DIR AUD
LEVEL
S / T
LEVEL
VOX
LEVEL
ICS GAIN
LEVEL
MIC
LEVEL
