PS Engineering PMA8000BT NUI Installation Manual - Manual (Page 21)

PS Engineering
PMA8000BT Audio Selector Panel and Intercom System
Installation and Operator’s Manual for units with serial number CBT1561 and above
200-890-1702 Page 2-14 New, April 2011
16. Verify that the audio selector panel system does not adversely affect any other aircraft system by sys-
tematically 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 sensitiv-
ity, verify 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. Select SPR 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 in-
stalled). Verify that by using the pilot side PTT, the pilot can transmit on the other selected radio (Com 1 or
Com 2). The telephone function will allow any person heard by the pilot on the intercom, also heard on the
telephone.
2.12.4.1Bluetooth Checkout (050-890-1702)
Verify that the PMA8000BT will “pair” with a Bluetooth device, and interface with cellular phone and Mu-
sic source. See section 3.12 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 Com receiver pushbutton that corresponds to the selected radio transmitter and hold for approxi-
mately one second. 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 messages 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.
2.12.6 Function Button Checkout
While listening to the pilot’s headset, press and hold the TEL, AUX, MUTE and SPR buttons, verifying
that the annunciations play back in pilot headset. See operation section for information. Incoming audio on
selected com will stop the audio.
Button Announcement 1 Announcement 2 Announcement 3
TEL Alternate Intercom Function Standard Intercom Function
AUX Monitor On Monitor Off
MUTE Music one all headsets Alternate Music Distribution Standard Music Distribution
SPR Chime; music increases Chime, music decreases
2.13 Final Inspection
Verify that the wiring is bundled away from all controls and no part of the installation interferes with air-
craft control operation. Move all controls through their full range while examining the installation to see
that no mechanical interference exists. Verify that the cables are secured to the aircraft structure in accord-
ance 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.