PS Engineering PMA8000D Installation Manual - Manual (Page 22)

PS Engineering
PMA8000D Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 2-14 Rev. 6, Oct. 2014
2.10 Wiring Checkout
After wiring is complete, verify power is ONLY on pins 8 and 9 of the J2 and airframe ground on connector
pins 10 and 11. Failure to do so will cause serious internal damage and void PS Engineering's warranty.
2.11 Unit Installation
To install the PMA8000D, gently slide the unit into the mounting rack until the hold-down screw is en-
gaged. While applying gentle pressure to the face of the unit, tighten the 3/32" hex-head in the center of the
unit until it is secure. DO NOT OVER TIGHTEN.
CAUTION
Apply steady pressure to the bezel while screwing the unit into the tray to ensure even seating of the unit
and connectors. WARNING Do not over-tighten the lock down screw while installing the unit in tray. In-
ternal damage will result.
2.12 Operational Checkout
2.12.1 Required Test Equipment
In order to return an aircraft to service after installation of the PMA8000D, the installer must have access to
a Marker Beacon signal generator:
a. IFR NAV401L, NAV402AP, IFR4000
b. TIC T-30D, T-36C
Equivalent test equipment is acceptable as long as the testing requirements can be met.
2.12.2 Audio Panel Test
NOTE
The IntelliVox® is designed for ambient noise levels of 80 dB or above. Therefore some clipping may oc-
cur in a quiet cabin, such as without the engine running, in a hangar. This is normal.
1. Apply power to the aircraft and avionics.
2. Plug headsets into the pilot, copilot, and occupied passenger positions.
3. Verify fail-safe operation by receiving and transmitting on com 1 from the pilot & copilot position,
with the audio panel power off. The COM audio will be present in one ear cup only.
4. Switch on the units by pressing the volume (VOL) knob on both audio panels.
5. Verify both panels are in CREW mode.
6. Check intercom operation.
7. Push the COM 1 Xmt select button (lower row) on both audio panels.
8. Verify that both of the COM 1 buttons light. Verify that transmit button LED (Light Emitting Diode)
near the mic selector is not blinking. If the LED is blinking, stop testing and troubleshoot the micro-
phone PTT installation.
9. Verify proper transmit and receive operation from the copilots audio panel, noting that the copilot PTT
switch allows proper transmission on the selected transceiver. Verify that the COM 1 Xmt button blinks
when transmitting.
10. Verify that pushing the COM 2 button causes the button to illuminate, and the COM 2 receiver to be
heard. Verify operation on COM 1 from the pilot position.
11. Repeat for COM 2
12. Repeat for COM 3
13. Verify proper operation of all receiver sources by selecting them using the appropriate button. The but-
ton illuminates to show which source is in use.
14. Push the SPR button. Verify that all selected audio is heard in the cockpit speaker. Verify that the audio
mutes when the mic is keyed.
15. Verify that the appropriate LED in the lower button row blinks when either push to talk is keyed.
16. Verify proper Intercom system operation in the A LL , I SO and C REW modes (see page 3-3).