Installation manual

AMX240 Audio Panel Installation Manual
200-890-0240 Rev. 02
Use the low level output of any additional entertainment device to connect to the audio pa n-
el. Maximum signal level is 3 VAC p-p. DO NOT use a speaker-level output, this will cause
internal damage in the audio panel.
2.5.2 Entertainment muting
The AMX240-system incorporates a "Soft Mute™" system. This will mute the entertainment devices during ICS
and/or radio conversation. See Section 3.8 for more information.
Press the Music ♫ switch to disable crew SoftMute™. Turning down the entertainment volume allows the pilot to
place the entertainment into the background while having the radios in the foreground and eliminates the constant
interruption of the music while still keeping the radios a priority.
CAUTION
Local oscillators and internal signals from entertainment equipment can cause undesired interference with other air-
craft systems. Before takeoff, operate the entertainment devices to determine if there is any adverse effect within the
aircraft systems. If any unusual operation is noted in flight, immediately switch off the entertainment devices.
All additional entertainment devices must be switched off for both takeoff and landing.
2.5.2.1 Entertainment 2 Mute
Entertainment 2 is always in Karaoke mode- and will not be muted by any other audio.
2.5.3 Configuring Music Input with Function Keys
The music inputs can be configured by the user from the front panel (see section 3.8). There are two configurations
available, independent, and single input (music 1 to all stations).
If the inputs are independent, Input #1 (or the front jack) is provided to the pilot and copilot. Muting (SoftMute™) is
controlled by the front panel “mute” button. Music 2 is provided to the passengers at all times and does not mute.
If the single-source mode is activated through the function keys (“Music 1 all headsets”), rear connector music 1 or
Bluetooth streamed music is connected to all intercom positions. Muting is controlled by the front panel.
2.5.3.1 Annunciation and recorder playback
The pilot and copilot will hear the Function Key annunciations and digital recorder playback audio.
2.5.4 Playback button Installation
Internal Recorder can be played back from the front panel (REPLAY). A remote momentary, normally open (NO)
push button switch may be installed if desired to remotely activate the Recording System playback. This switch can
be located anywhere in cockpit convenient to the pilot's reach. The NO switch should be connected to pin 22 of J2
(Playback) of the AMX240, and ground. When installed, this button will act as in § 3.13.
Pressing the front panel REPLAY or MUTE switch will stop the recorder playback.
2.6 Marker Beacon Installation
2.6.1 Marker Antenna Installation
A marker beacon antenna, appropriate to the type and speed of the aircraft, is required (not included). Refer to air-
craft and antenna manufacturer's installation instructions, as well as AC43.13-2B (or later revision), Chapter 3, for
information on proper antenna installation techniques. The marker beacon antenna must be mounted on the bottom
of the aircraft.
2.6.2 External Marker Lights
For installations that require external marker beacon lights, there are three outputs that can drive 12-Volt lamps only.
The external output lamps are driven high (typically +7.0 VDC 4.0 VDC unloaded, at MAX brightness) when ac-
tive. Maximum source current per lamp is 125 mA. Voltage varies with aircraft panel light dimming.