Installation manual

AMX240 Audio Panel Installation Manual
200-890-0240 Rev. 02
16. Verify that the audio selector panel system does not adversely affect any other aircraft system by systematically
switching the unit on and off, while monitoring the other avionics and electrical equipment on the aircraft.
2.12.3 Marker Checkout
1. Connect a ramp generator at the antenna end of the marker coax. With the unit under test in HI sensitivity, veri-
fy that a 160 V, modulated 95% with 1300 Hz, signal will illuminate the amber (M) marker light, and that
marker audio is present in the headphones when the Marker Audio (MKR) push-button has been depressed. Se-
lect SPKR for speaker to verify marker audio availability on the cabin speaker. Verify that the white (I) and
blue (O) lights will illuminate within  3dB of the amber lamp, with 3000 HZ and 400 Hz applied, respectively.
2. Repeat with the unit in LOW sensitivity, with 430 Volts applied.
3. Connect the marker antenna and verify proper operation.
2.12.4 TEL Checkout
Press the TEL button. Verify that the pilot headset is connected to the cellular telephone system (if installed). Verify
that by using the pilot side PTT, the pilot can transmit on the other selected radio (COM 1 or COM 2). The tele-
phone function will allow any person heard by the pilot on the intercom, also heard on the telephone.
2.12.4.1 Bluetooth Checkout
Verify that the AMX240 will “pair” with a Bluetooth device, and interface with cellular phone and Music source.
See section 3.11 for more information.
2.12.5 Internal Recorder Checkout
With headset plugged into pilot’s side jacks, tune COM 1 to local frequency, such as FSS or ATC ground. Select
COM 1 on mic selector switch, and record several incoming radio transmissions.
Press the REPLAY, this action will then automatically play back the last recorded message. Press and HOLD the
button again to stop the play back, and then momentarily press again to play prior messages.
This audio should appear in the pilot and copilot headsets, and only be incoming transmissions from the transceiver
selected in the mic select switch. Depress the audio panel or yoke mounted playback switch, and verify that mes-
sages play, in the order received. Repeat for COM 2. The playback will be stopped by audio on the selected com.
The message can be replayed from the beginning, and audio received during the playback will not be stored.
2.13 Final Inspection
Verify that the wiring is bundled away from all controls and no part of the installation interferes with aircraft control
operation. Move all controls through their full range while examining the installation to see that no mechanical inter-
ference exists. Verify that the cables are secured to the aircraft structure in accordance with good practices, with
adequate strain relief. Ensure that there are no kinks or sharp bends in the cables and coaxial cables. Verify that the
cables are not exposed to any sharp edges or rough surfaces, and that all contact points are protected from abrasion.
Complete documentation that may be required, such as a logbook entry, weight and balance computation and FAA
Form 337. Sample text for FAA Form 337, and instructions for continuing airworthiness can be found in Appendix
F. Return completed warranty registration application to Avidyne, or complete online at www.avidyne.com .