2.2 Factory Service
The unit is covered by a three-year limited warranty. See warranty information. Call PS Engineering, Inc. at (865) 988-9800 before you return the
unit. This will allow the service technician to provide any other suggestions for identifying the problem and recommend possible solutions.
After discussing the problem with the technician and you obtain a Return
Authorization Number, ship product to:
PS Engineering, Inc.
Attn: Service Department
9800 Martel Rd
Lenoir City, TN 37772
(865) 988-9800 FAX (865) 988-6619
Email: support@ps-engineering.com
9800 Martel Road
Lenoir City, TN 37772
www.ps-engineering.com
PMA7000S
PMA7000M-S
Pilot’s Guide
Pilot’s Guide
And
And
12 PMA7000-Series Pilot Guide
Operation Manual
Operation Manual
July 2001
July 2001
Audio Selector Panel
Marker Beacon Receiver
High-fidelity Stereo Intercom System
Patent No. 5,903,277 & 6,160,496
FAA-Approved TSO C50c, C35d
JAA-Approved JTSO-2C35d, C50c
PS Engineering, Inc. 2001 ©
Copyrighted information in this manual is subject to change without notice. PS Engineering
reserves the right to improve or change the products or contents of this manual, without
notification of any person or agency. The contents of this pilot’s guide may be downloaded, stored
and reprinted for personal use provided that this copyright information is included. Commercial
use is strictly prohibited. For further information contact the Publcications Manager at PS Engineering, Inc., 9800 Martel Road, Lenoir City, TN 37772. Phone (865) 988-9800
Copyright Notice
1 PMA7000-Series Pilot Guide
1 OPERATION
GENERAL INFORMATION
1.1 SCOPE
This section provides detailed operating instructions for the PS Engineering PMA7000M-S, and PMA7000S Audio Selector Panel/Intercom Systems. Please read it carefully before using the equipment so that you can
take full advantage of its capabilities.
This section is divided into four sections covering the basic operating areas of the PMA7000M-S systems. They are Audio Selector, Transceiver
Selection, Intercom, and Marker Beacon Receiver (7000M-S only).
PMA7000M-S controls
Receive Audio Selectors
Marker Indicator Lamps
O
M I
V
O
L
PUSH
OFF/EMG
1.2 Power Switch (EMG-Fail Safe Operation)
Unit power is turned on and off by pushing the volume knob. In the OFF or
"EMG" position, the pilot is connected directly to Com 1. This allows
communication capability regardless of unit condition. Any time power is
removed or turned OFF, the audio selector will be placed in the fail-safe
mode.
The power switch also controls the audio selector panel functions, intercom, and marker beacon receiver, (PMA7000M-S only). Unless the mic
selector is in Com 3 mode, at least one of the selected audio LEDs will be
on (Com 1 or Com 2).
Marker Mode Selector
HI
LO
Com 1 Nav 1
T/M
ISO
CREW
ALL
Mounting
Screw
Intercom Vol.
ENGINEERING
INCORPORATED
Nav 2Com 2
R
Crew ICS/
Music 1 Mute
Intercom Mode Sel.
Photo
Detector
MKR ADF
PMA7000M-S
Speaker Switch
AUXICS
TX Indicator
DME
SPR
Swap Indicator
COM 1 COM 1/2
COM 2
COM 3
Transmit Swap
COM 2/1
TEL
Mic Selector
Warranty and Service
2.1 Warranty
In order for the factory warranty to be valid, the installations in a certified aircraft must be accomplished by an FAA-(or other ICAO agency) certified avionics shop and authorized PS Engineering dealer. If the unit is being installed by a non-certified individual in an experimental aircraft, a factorymade intercom harness must be used for the warranty to be valid.
PS Engineering, Inc. warrants this product to be free from defect in material
and workmanship for a period of three (3) years from the date of installation
as recorded in aircraft logbook and/or on FAA Form 337. During the first
twelve (12) months of the three-year warranty period, PS Engineering, Inc.,
at its option, will send a replacement unit at our expense if the unit should be
determined to be defective after consultation with a factory technician. For the
remaining twenty-four (24) months of the three-year warranty period, the
unit must be returned to PS Engineering, Inc., or an authorized warranty service facility, for no-cost repair.
All transportation charges for returning the defective units are the responsibility of the purchaser. All domestic transportation charges for returning the exchange or repaired unit to the purchaser will be borne by PS Engineering, Inc.
The risk of loss or damage to the product is borne by the party making the
shipment, unless the purchaser requests a specific method of shipment. In this
case, the purchaser assumes the risk of loss.
This warranty is not transferable. Any implied warranties expire at the expiration date of this warranty. PS Engineering SHALL NOT BE LIABLE FOR
INCIDENTAL OR CONSEQUENTIAL DAMAGES. This warranty does not
cover a defect that has resulted from improper handling, storage or preservation, or unreasonable use or maintenance as determined by us. This warranty
is void if there is any attempt to dissemble this product without factory
authorization. This warranty gives you specific legal rights, and you may also
have other rights, which may vary from state to state. Some states do not allow the exclusion of limitation of incidental or consequential damages, so the
above limitation or exclusions may not apply to you.
All items repaired or replaced under this warranty are warranted for the remainder of the original warranty period. PS Engineering, Inc. reserves the
rights to make modifications or improvements to the product without obligation to perform like modifications or improvements to previously manufactured products.
2 PMA7000-Series Pilot Guide
11 PMA7000-Series Pilot Guide
marker mute function was added. Pressing the marker mode select down (to
“T/M”) will cause the marker audio to mute for that beacon. The next beacon
received will re-activate the audio.
1.3 Internal Recorder System (Optional)
The Intercom Recording System (referred to here as the IRS) is a digital recording system allowing automatic storage and playback of aircraft radio traffic.
Operating as a continuous loop recorder, (first message received will be the
last heard), the recorder has one minute of recording time or up to 16 messages. With its own built in VOX circuit, there are no buttons to press to start
recording. The system automatically begins to record the instant the radio becomes active. Only aircraft radio audio in pilots headset is recorded and only
the pilot will hear the playback audio.
1.3.1 Operation
Recording is automatic; there is no action required by the pilot. To play back
the last recorded message, simply press the momentary switch associated with
the IRS. Each additional press of the button will play the preceding recorded
message. You must wait for the message to finish playing before accessing the
prior message.
To cancel the playback, press and hold the playback button for two seconds.
The next time the button is pressed, the next earlier message will be heard.
1.4 Audio Messaging system (Option 1, Option 2,
only)
When this option is installed, the PMS7000M-S contains six stored messages.
An outside annunciator, such as an Electronics International engine gage system triggers these messages. When there is an announcement, it will be repeated every two seconds until the remote- mounted ACK button is pushed.
This stops the played annunciation, until the next announcement is required
(the next falling edge).
1.4.1 Concurrent Messages
When a recorded message or audio annunciation is playing, the other audio
source is momentarily inhibited. For instance, if an IRS message is being
played, the audio annunciation will not begin until the IRS message is finished. Conversely, the IRS recording cannot be played as long as there is an
aural alert being played. There is no recording made if playing a recording or
annunciation.
1.3 Microphone Selector (All models)
When the mic selector switch is in the Com 1
position, both pilot and copilot will be connected to the Com l transceiver. Only the person who presses their Push To Talk (PTT),
will be heard over the aircraft radio. Turning
the rotary switch to the COM 2 position will
place pilot and copilot on Com 2.
The PMA7000M-S gives priority to the pilot’s
PTT. If the copilot it transmitting, and the
pilot presses his PTT, the pilot’s microphone will be heard over the selected
com transmitter.
Turning the mic selector fully counterclockwise places the pilot and copilot on
Com 3. Com 3 receive audio is automatically placed in the headset (and
speaker if selected). Com 1 and/or Com 2 receiver audio can be selected to
monitor those transceivers.
The PMA7000M-S-Series has an automatic selector mode. Audio from the
selected transceiver is automatically heard in the headsets and speaker. You
can check this function by switching from COM 1 to COM 2 and watch the selected audio light on the selector change from COM 1 to COM 2. This ensures
the pilot will always hear the audio from the transceiver he is transmitting on.
When switching the mic selector rotary switch from COM 1 to COM 2, while
COM 2 audio had been selected, Com 1 audio will continue to be heard. This
eliminates the pilot having to switch Com 1 audio back on, if desired.
When switching from COM 1 to COM 2 while Com 2 has NOT been selected,
Com 1 audio will be switched off. In essence, switching the mic selector will
not effect the selection of Com audio.
The “TEL” position, fully CW on the mic selector switch, is the pilot’s “hook”
switch, when the system is interfaced to an appropriate approved wireless telecommunication system, such as the AirCell system. Placing the mic selector
in TEL placed the pilot microphone and headphones on the cellphone. The
pilot PTT will switch the pilot mic to the COM 1, and allow continued aircraft
communications as well.
The copilot will also be able to transmit on COM 1 with his PTT as well.
NOTE: Placing the mic selector switch in the TEL position will disable pilot
and copilot intercom, as the intercom circuit is transferred to the telephone
use. In crew or ISO mode, placing the switch in TEL mode removes the passengers access to the telephone.
10 PMA7000-Series Pilot Guide
3 PMA7000-Series Pilot Guide
1.3.1 Swap Mode (Switch from Com 1 to Com 2 remotely)
With a yoke mounted, momentary switch, the pilot can change from the current Com transceiver to the other by depressing this switch. When "Swap
Mode" is active, an annunciator in the lower right corner of the unit will illuminate, indicating that the Mic Selector switch position is no longer current.
To cancel "Swap Mode," the pilot may either press the yoke mounted switch
again, or turn the Mic Selector Switch to the Com that is active.
1.4 Receiver Audio Selector (All models)
Receiver audio is selected through two momentary and six latched, pushbutton, backlit switches. Com 1 and Com 2 are the momentary switches.
Because the rotary microphone selector switch controls what transceiver is
being heard, the Com l and Com 2 push-buttons are of the momentary type
and do not remain in when selected. This is also part of the "auto” function.
You will always hear the audio from the transceiver that is selected for transmit by the rotary mic selector switch.
The users can identify which receivers are selected by noting which of the
green switch LEDs are illuminated. Push buttons labeled Nav 1, Nav 2,
DME, MKR (Marker), ADF, AUX (auxiliary), and SPR (Speaker) are
"latched" type switches. When one of these buttons is pressed, it will stay in
the "in" position. Press the switch again and it be in the "out" position and
remove that receiver from the audio.
1.4.1 Speaker Amplifier
The "SPR" in the push-button section stands for speaker. This switch will
place all selected audio on the cockpit speaker when this switch is selected.
NOTE: Except for the unswitched audio, the speaker amplifier is not active in
the "Split Mode."
Unswitched audio, (autopilot disconnect, altimeter warning, etc.) will come
through the speaker regardless of the speaker button position.
1.4.1.1 Public Address Function
In PMA7000M-S versions above “F” serial number for the top board (2nd set
of unit serial numbers) a public address function was added. To access this
respective hook switch (the pilot selects TEL on the mic selector). Any passenger who places their switch into the off-hook position will also have access
to the phone, and all four passengers will hear the conversation.
In ISO intercom mode, when the PMA7000M-S is in the TEL mode, the pilot
position is in the "Phone Booth." Only the pilot will hear the telephone, and
only he will be heard. He will also have access to Com 1, and will transmit on
that radio using the PTT. All selected audio is provided. If any other passenger goes “off hook” they will hear the phone.
In all cases, only the pilot (and copilot in ALL or CREW) will hear the cellphone ring. At that time they can chose to allow a passenger to take the call,
or answer the phone.
Note: Because the cellphone uses an intercom circuit, all stations on
that circuit will lose intercom capability when the cellphone is in use.
1.2 Marker Beacon (PMA7000M-S)
The optional Marker Beacon Receiver uses visual and audio indicators to alert
you when the aircraft passes
over a 75 MHz transmitter.
The Blue lamp, labeled "O,"
is the Outer Marker lamp
and has an associated 400
Hertz 'dash' tone. The lamp
and tone will be keyed at a
rate of two tones/flashes per
second when the aircraft is in the range of the Outer Marker Beacon.
The Amber lamp, labeled "M," is the Middle Marker lamp and is coupled
with a 1300 Hertz tone. It is keyed alternately with short 'dot' and long 'dash'
bursts at 95 combinations per minute.
The White lamp, labeled "I," is the Inner marker and has a 3000 Hertz 'dot'
tone. The lamp and tone will be keyed at a rate of six times per second.
The audio from the Marker Beacon Receiver can be heard by selecting the
"MKR" push-button switch. To adjust the volume level, there is a service adjustment located on the top of the unit. See Section 2.5
A three-position switch is used to set the receiver sensitivity and to test the
indicator lamps. Use "HI" sensitivity initially. This allows you to hear the
outer marker beacon about a mile out. Then select the “LO” sensitivity to give
you a more accurate location of the Outer Marker. The momentary down
switch position is marker test, labeled "T/M" and illuminates all three lamps
simultaneously to assure the lamps (internal and external) are in working order. TST does not activate MM sense output.
In units with serial numbers above “F” series in the first set of numbers, a
4 PMA7000-Series Pilot Guide
9 PMA7000-Series Pilot Guide
While in the ISO (Isolate) mode, the copilot will hear Entertainment 1 while
the four passengers will hear Entertainment #2. The pilot will hear entertainment 1, at a muted level. In normal operation, whenever a person speaks, or if
the aircraft radio becomes active, the music will automatically mute and then
will gradually return to the original listening level when the intercom or radio
conversation ceases.
When in the ALL mode, pilot and copilot will hear Entertainment 1 input
while all passengers will hear the Entertainment 2 source. While in the CREW
mode, pilot and copilot will hear entertainment input #1 while the passengers
may listen to entertainment input #2.
It is also possible to use only one entertainment input device for both entertainment inputs. However, it is suggested that a switch (DPDT) be installed
between the single entertainment device and entertainment input #1. This will
allow the pilot and copilot decide if they hear entertainment while in the Crew
mode.
1.1.2.2 Soft Mute and Soft Mute inhibit
The Soft Mute feature assures that the aircraft radio transmissions will not be
missed due to entertainment playing. When there is radio reception or intercom conversation, the music level is dropped to a low, or background level.
When the radio or intercom traffic ceases, the level gradually returns to normal.
The front panel ICS switch controls muting of entertainment source #1 (for
pilot and copilot). Pushing this button places the ICS in Karoake (or sing
along) mode, which inhibits the soft mute feature. This allows the music to
continue uninterrupted by intercom or radio traffic when cockpit workload is
appropriate. Pushing the button again will release the mute inhibit function.
The passenger music, source #2, can be placed in the Karoake mode if a remote switch is installed in the aircraft. See wiring information for details.
function, a switch is installed to connect the top connector, pin 18, to ground.
This places the pilot microphone on the speaker output (Pin W) when the PTT
is pushed. The copilot can continue to use the selected com radio.
We recommend that the switch transfer the audio from the cockpit speaker to
a cabin speaker for public address. This will prevent feedback.
1.4.2 Key “Click”
The PMA7000M-S is equipped with a “click” function that provides an aural
feedback to the user in addition to the tactile button push. This sound can be
enabled or disabled by simultaneously holding the COM 1 and COM 2 buttons in for at least 5 seconds. Any person hearing the radios will also hear the
key click.
Allow at least 20 seconds between turning the key click on and off.
1.5 Split Mode
Turning the rotary switch to COM 1/COM 2 places the PMA7000M-S into
"Split Mode." This places the pilot on Com 1 and the copilot on Com 2. An
example of this useful feature is when the pilot may want to talk to Air Traffic
Control, while the copilot may be speaking to Flight Watch. Although this
mode has limitations (see below) we believe you will find this to be a useful
feature.
Switching to Com 2/Com l will reverse the “Split Mode” radio selection. The
pilot will be on Com 2 and the copilot will be on Com 1.
Note:
Due to the nature of VHF communications signals, and the
size constraints in general aviation aircraft, it is probable
that there will be some bleed-over in the Split mode, particu-
larly on adjacent frequencies.
1.1 Telephone Mode
(When interfaced with a Each intercom position has a "hook switch." The pilot's hook switch is the "TEL" mode on the audio panel, the others are discrete
switches mounted adjacent to the headset jacks.
When the intercom is in ALL mode, the pilot can speak on the phone only if
the mic selector switch is in TEL position. All intercom positions will hear
the telephone conversation. If any passenger places his or her switch into the
“off-hook” position all passengers will also be heard on the phone. All will
hear selected audio. Com 1 audio is automatically heard in the headsets. The
pilot and copilot will have transmit capability on Com 1, simply by using their
respective PTT switch.
In CREW mode, the pilot and copilot are may use the telephone, with their
8 PMA7000-Series Pilot Guide
PS Engineering makes no warranty about the suitability of
Split Mode in all aircraft conditions.
Note: Split Mode does not turn off other (Nav, ADF, etc.) selected audio to pilot.
However, the copilot will only hear the selected communications receiver.
1.5.1 Split Mode ICS
In split mode, the pilot and copilot are usually isolated from each other on the
intercom, simultaneously using their respective radios. Depressing the ICS
button in Split Mode will activate VOX intercom between the pilot and copilot positions. This permits intercommunication when desired between the
crew. Pressing the ICS button again disables this crew intercom function.
5 PMA7000-Series Pilot Guide
1.6 Intercom Operation
1.1.1.1 Mono headsets in Stereo Installation
1.6.1 IntelliVox® VOX-Squelch
No adjustment of the IntelliVox® squelch control is necessary. There is no
field adjustment. Through three individual signal processors, the ambient
noise appearing in all six microphones is constantly being sampled. Nonvoice signals are blocked. When someone speaks, only their microphone circuit opens, placing their voice on the intercom.
The system is designed to block continuous tones, therefore people humming
or whistling in monotone may be blocked after a few moments.
NOTE:
For consistent performance, any headset microphone must be
placed within ¼-inch of your lips, preferably against them. (ref:
RTCA/DO-214, 1.3.1.1 (a)).
It is also a good idea to keep the microphone out of a direct wind path.
Moving your head through a vent air stream may cause the IntelliVox®
to open momentarily. This is normal.
The IntelliVox® is designed to work with normal aircraft cabin noise levels (70 dB and above). It loves airplane noise! Therefore, it may not
recognize speech and clip syllables in a quiet cabin, such as in the hangar, or without the engine running. This is normal.
For optimum microphone performance, PS Engineering recommends installation of a Microphone Muff Kit from Oregon Aero (1-800-888-6910). This will
not only optimize VOX performance, but will improve the overall clarity of
all your communications.
1.1.1 Volume Control
The volume control knob adjusts the loudness of the intercom for the pilot and
copilot only. It has no effect on selected
radio levels, music input levels or passengers' volume level.
Adjust the radios and intercom volume
for a comfortable listening level for the
pilot. Most general aviation headsets
today have built-in volume controls;
therefore, passenger volume can be adjusted at the headset. If desired, passenger volume level can be adjusted by a
screwdriver adjustment at the top of the
tray.
All passenger headsets are connected in parallel. Therefore, if a monaural
headset is plugged in to a PMA7000M-S Stereo installation, one channel will
be shorted. Although no damage to the unit will occur, all passengers will lose
one channel, unless they switch to the “MONO” mode on the headset. PS Engineering modifies headsets to add stereo capability, using high-fidelity speakers. Contact factory for details.
1.1.2 Intercom Modes
The lower switch on the left side is a 3-position mode switch that allows the
pilot to tailor the intercom function to best meet
the current cockpit situation. The description of
the intercom mode function is valid only when
the unit is not in the "Split" mode. Then, the
pilot and copilot intercom is controlled with the
ICS button.
ISO: (Up Position): The pilot is isolated from
the intercom and is connected only to the aircraft radio system. He will hear the aircraft ra-
dio reception (and sidetone during radio transmissions). Copilot will hear passengers’ intercom and Entertainment 1, while
passengers will hear copilot intercom and Entertainment 2. Neither will hear
aircraft radio receptions or pilot transmissions.
ALL: (Middle Position): All parties will hear the aircraft radio and intercom.
Crew will hear Entertainment 1, passengers will hear Entertainment 2. During any radio or intercom communications, the music volume automatically
decreases. The music volume increases gradually back to the original level
after communications have been completed.
CREW (Down Position): Pilot and copilot are connected on one intercom
channel and have exclusive access to the aircraft radios. They may also listen
to Entertainment 1. Passengers can continue to communicate with themselves
without interrupting the Crew and also may listen to Entertainment 2.
Anytime the PMA7000M-S is in either the COM 1/COM 2, COM 2/COM 1
("Split Mode"), the pilot and copilot intercom is controlled with the ICS button. The passengers will maintain intercommunications, but never hear aircraft radios.
1.1.2.1 Entertainment Input
The audio selector panel has provisions for two separate entertainment input
devices. They operate independently in the PMA7000M-S. The volume control does not affect music level.
6 PMA7000-Series Pilot Guide
7 PMA7000-Series Pilot Guide
Loading...