Installation manual

AMX240 Audio Panel Installation Manual
200-890-0240 Rev. 02
Section II - INSTALLATION
2.1 GENERAL INFORMATION
2.1.1 SCOPE
This section provides detailed installation and interconnection instructions for the Avidyne AMX240 Audio Selector
Panel/Intercom/ with internal Marker Beacon.
Please read this manual carefully before beginning any installation to prevent damage and post-installation prob-
lems. Installation of this equipment requires special tools, test equipment (refer to §2.12.1) and knowledge as re-
quired by 14 CFR 65.81(b).
2.1.2 Certification Requirements
NOTE
The AMX240 requires specialized knowledge and tools for an effective installation. An appropriately rated Certified
Aircraft Repair Station must install this equipment in accordance with applicable regulations. The warranty is not
valid unless the equipment is installed by an authorized Avidyne dealer.
Failure to follow any of the installation instructions, or installation by a non-certified individual or agency will void
the warranty, and may result in an unairworthy installation.
2.2 Unpacking and Preliminary Inspection
Use care when unpacking the equipment. Inspect the unit and parts supplied for visible signs of shipping damage.
Examine the unit for loose or broken buttons, bent knobs, etc. Verify the correct quantity of components supplied
with the list in Section 1.6. If any claim is to be made, save the shipping material and contact the freight carrier. Do
NOT return unit damaged in shipping to Avidyne. If the unit or accessories show any sign of external shipping dam-
age, contact Avidyne to arrange for a replacement. Under no circumstances attempt to install a damaged unit in an
aircraft. Equipment returned to Avidyne for any other reason should be shipped in the original Avidyne packaging,
or other UPS approved packaging.
2.3 Equipment Installation Procedures
2.3.1 Cooling Requirements
Forced air-cooling of the AMX240 is not required. However, the units should be kept away from heat producing
sources (i.e. defrost or heater ducts, dropping resistors, heat producing avionics) without adequate cooling air pr o-
vided.
2.3.2 Mounting Requirements
The AMX240 must be rigidly mounted to the instrument panel of the aircraft structure, within view and reach of the
pilot position(s). Installation must comply with FAA Advisory Circular AC 43.13-2B, or other FAA-approved air-
craft technical data. The unit may be mounted in any area where adequate clearance for the unit and associated wir-
ing bundle exist.
To prevent noise, avoid installing the unit close to high current devices or systems with high-voltage pulse type out-
puts, such as DME or transponders. Avoid running the interconnecting bundles near any high current wires.
2.3.3 Audio Panel Mounting Rack Installation
Remove the unit from the mounting tray by unscrewing the 3/32" hex-head screw that is in the center of the unit.
Carefully slide the unit free of the tray. Set the unit aside in a safe location until needed. Install the tray using six clip
nuts (475-630-0002), and six FHP 6-32 x ½" screws (475-632-0012). The audio selector panel must be supported at
front and rear of the mounting tray.
2.3.4 Audio Panel Tray and Connector Assembly
The rack connectors mate with two 44-pin connectors in the AMX240. The connectors are a sub-miniature crimp-
type, and require the use a hand crimp tool, from table below (or equiv.). The connectors are mounted to the tray
back plate with #4-40 x 3/8” screws, 475-440-1038, from the inside of the tray and the mounting block, 431-891-