Marker checkout, Bluetooth telephone checkout, Internal recorder checkout – PS Engineering PMA8000D Installation Manual User Manual
Page 23: Function button checkout

PS Engineering
PMA8000D Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304
Page 2-15
Rev. 6, Oct. 2014
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 a430
Volts, 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 High sensitivity (P2, Pin 13 grounded), with 160
V applied.
3.
Connect the marker antenna and verify proper operation.
2.12.4 Bluetooth Telephone Checkout
Verify that the PMA8000D will “pair” with a Bluetooth device, and interface with cellular phone and Music
source. See section 3.12 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 or COM 2). 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.
Note: The recorder will not play back a recording while the COM is active.
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’s headset only and only be incoming transmissions from the selected
transceiver. 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.
Repeat for copilot’s audio panel.
2.12.6 Function Button Checkout
Each audio panel will have some differences in the function operation. Below shows the differences. While
listening to the pilot’s headset, press and hold the particular button with a second function and listen for the
correct spoken text:
Pilot’s Audio Panel:
Button
Announcement 1
Announcement 2
Announcement 3
COM 3 XMT
Alternate Intercom
Function
Standard Intercom Func-
tion
AUX
Monitor On
Monitor Off
MUTE
Music On
Music Off
SPR
Chime; music increases
Chime, music decreases