PS Engineering PMA8000C Installation Manual - Manual (Page 20)

PS Engineering
PMA8000C Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0303 Page 2-13 Rev. 3, May 2014
16. Verify proper Intercom system operation in the A LL , I SO and C REW modes (see §3.7.3).
17. 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 Bluetooth Telephone Checkout
Verify that the PMA8000C will “pair” with a Bluetooth device, and interface with cellular phone and Music
source. See section 3.11 for more information. Verify that the pilot headset is connected to the cellular tele-
phone system (if installed). Verify that by using the pilot side PTT, the pilot can transmit on the other se-
lected radio (COM 1, COM 2 or COM 3). The telephone function will allow any person heard by the pilot
on the intercom, also heard on the telephone.
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 and COM 3. 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 particular button with a second function and listen
for the correct spoken text:
Button Announcement 1 Announcement 2 Announcement 3
COM 3 XMT Alternate Intercom
Function Standard Intercom Func-
tion
AUX Monitor On Monitor Off
MUTE Music one all headsets Alternate Music Distri-
bution Standard Music Distri-
bution
SPR Chime, music increases Chime, music decreases
See operation section for information. Incoming audio on selected com will stop the audio.
2.12.6.1 Configuration announcement
Holding down the Com3 & AUX will activate the last configuration annunciation mode, so when you cycle
power, it will tell you what configuration the PMA8000C is in. To disable this feature hold down Com3 &
AUX for one second after power up.