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PMA4000

1. ENGINEERING INCORPORATED Sound Qi ty Sound Engineering 9800 Martel Road Lenoir City TN 37772 www ps engineering com PIRN PMA4000 amp Pilot lt Q Copilot Volume PMA4000 Audio Selector Panel with IntelliVox Intercom System Pilot s Guide Operation Manual July 2001 PS Engineering Inc 2001 Copyright Notice 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 Publications Manager at PS Engineering Inc 9800 Martel Road Lenoir City TN 37772 Phone 865 988 9800 a ENGINEERING NCORPURALEL 1 General Instructions 1 1 SCOPE This section provides detailed operating instructions for the PS Engineer ing PMA4000 Audio Selector Panel Intercom Systems Please read it care fully before using the equipment so that you can take full advantage of its capabilities This section is divided into three sections covering the basic operating ar eas of the PMA4000 systems They are Audio Selector Transceiver Selec tion and Intercom 1 2 Approval Basis None 1 3 Audio Selector Through the use of four
2. active The music volume increases gradually back to the original level after communications have been completed 1 3 2 Speaker Amplifier Pressing the volume control will activate the cockpit speaker This switch will place all selected audio on the cockpit speaker when selected The speaker is automatically muted when the radio push to talk PTT is ac tive To reduce power consumption and internal heat buildup switch off the speaker amplifier when not in use 1 4 Microphone Transmit Selector Switch Microphone Selector The up switch position is COM 1 Both pilot and copilot will be connected to the Com transceiver While in the COM 1 or COM 2 mode the intercom functions normally Both the pilot and copilot have transmit capabilities on the selected transceiver All hear the selected audio if the intercom is in the ALL mode Only the person who presses their Push To Talk PTT will be heard over the aircraft ra dio Placing the toggle switch in the COM 2 position will place pilot and PMA4000 Pilot Guide amp User Manual aE ENGINEERING NCORPURALEL copilot on Com 2 The PMA4000 Series has an automatic selector mode Audio from the se lected transceiver is automatically heard in the headsets and speaker when selected You can check this function by switching from COM 1 to COM 2 and watch the selected audio light on the selector change from C1 to C2 This ensures the pilot will never transmit on a radio is not lis
3. as resulted from improper or unreasonable use or mainte nance as determined by us This warranty is void if there is any attempt to dis semble this product without factory authorization This warranty gives you specific legal rights and you may also have other rights that 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 Factory Service The PMA4000 is covered by a one year limited warranty See warranty infor mation The unit is covered by a one 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 identify ing 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 Road Lenoir City TN 37772 865 988 9800 FAX 865 988 6619 Wwww ps engineering com suport shtml If no method of payment is provided the units will be returned COD PS Engineering will not be responsible for units returned via US Mail PMA4000 Pilot Guide amp User Manual 7 a ENGINEERING NCORPURALEL The recorder function is automatic Pressing the momentary switch associ ated with the playback will cause the last me
4. d listen to music Radios Radios Radios This mode allows all on board Sidetone Sidetone Sidetone to hear radio reception as well Pilot Pilot Pilot as communicate on the inter com Music and intercom is Copilot Copilot Copilot muted during intercom and Passengers Passengers Passengers radio A E Entertainment Entertainment Entertainment Push to talk intercom mode In some extremely high noise environments it may be desirable to have a push to talk PTT intercom instead of relying on voice activation VOX In the PMA4000 audio panel the PTT intercom capability is added To operate the PTT Activate the panel mounted VOX override switch Then the ICS PTT switch on the pilot or copilot side will allow voice on the in tercom Internal Recorder System Part number 11941 only The PMA4000 part number 11941 has an available internal recorder op tion This stores the last 60 seconds of radio traffic from the selected Comm transceiver the one selected for transmit PMA4000 Pilot Guide amp User Manual
5. latched push button back lit FS win switches it is possible to se E mr lect any or all receiver audio When selected an internal backlight will illuminate indi cating which audio source is selected The Com toggle switch controls what trans ceiver is being heard by the pilot and copilot C1 Com 1 and C2 Com 2 push buttons select the receiver and are used to monitor a com that is not selected for transmit You will always hear the audio from the transceiver that is selected by the 2 position mic selector toggle switch The users can identify which receivers are selected by noting which push button switches are illuminated Push buttons labeled N1 Nav 1 N2 Nav 2 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 While selected an internal lamp will also annunciate the switch PMA4000 Pilot Guide amp User Manual 4 FS INCORPORATED option will send a replacement unit at our expense if the unit should be deter mined to be defective after consultation with a factory technician The cus tomer is responsible for return shipment costs This warranty is not transferable Any implied warranties expire at the expira tion date of this warranty PS Engineering SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES This warranty does not cover a defect that h
6. of your lips preferably against them 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 ntelliVox to open momentarily This is nor mal For optimum microphone performance PS Engineering Inc recommends installation of a Microphone Muff Kit from Oregon Aero 1 800 888 6910 This will not only optimize VOX performance but will improve PMA4000 Pilot Guide amp User Manual a ENGINEERING NCORPORATED the overall clarity of all your communications 1 4 3 Intercom Modes The audio selector panel has provisions for an entertainment input device While in the ISO Isolate mode only the copilot and the four passengers will hear entertainment device 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 radio or intercom activity ceases If a stereo entertainment device is used the left and right channels can be combined in the plug to provide full sound Mode Pilot Hears Copilot Passenger Comments Hears Hears A C Radio Copilot Copilot This mode allows the pilot to Pilot Sidetone Passengers Passengers communicate with the air during radio Entertainment Entertainment traffic control without the copi transmission lot or passengers bothered by the conversations Copilot and passengers can continue to talk an
7. s in a certified aircraft must be accomplished by an FAA approved agency and author ized PS Engineering dealer PS Engineering Inc warrants this product to be free from defect in mate rial and workmanship for a period of one year from the date of installa tion During this one year warranty period PS Engineering Inc at its PMA4000 Pilot Guide amp User Manual aE ENGINEERING NCORPURALEL 1 3 1 Intercom Mode Selector Switch Unit power is turned on and off by the mode se lector switch In the OFF or FAIL SAFE posi tion the pilot is connected directly to Com al lowing transmit and receive 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 switch is a 3 position mode switch that allows the pilot to tailor the intercom function to best meet the situation Iso Up Position The pilot is isolated from the intercom and is con nected only to the aircraft radio He will hear the aircraft radio reception and sidetone during radio transmissions if provided by the transceiver Copilot and passengers will hear the intercom and music on Entertain ment input but not the aircraft radio receptions or pilot transmissions ALL Middle Position All parties will hear the aircraft radio intercom and music from entertainment input However during any intercom com munications the music volume automatically decreases when SoftMute is
8. ssage to played incoming radio and transmit sidetone This will be heard in all headsets and speaker if selected To hear older messages push the playback button repeatedly to back up the recorder until the desired message is heard Holding the IRS playback button for three seconds will stop the message playback and queues the system to the next preceding message This al lows quick access to previous messages The recorder is a continuous loop and newest ones will overwrite the old est messages The IRS has an internal squelch that prevents storing dead air A radio signal of more than 1 VRMS is needed to trigger the IRS Therefore if the IRS does not seem to be recording increase the aircraft radio volume slightly Limitations Any entertainment device connected through the PMA4000 must be switched off during take off and landing Emergency Procedures In the event that the unit exhibits any anomalous behavior such as an audio failure transmitter failure or other difficulty the unit can be switched off in the following manner 1 Placing the Intercom Mode Selector Switch see Figure 1 2 into the OFF position 2 Pulling the Audio Panel Circuit Breaker This activates the fail safe mode which connects the pilot s headset di rectly to Com 1 This allows communications or the pilot only on Com 1 only Warranty and Service Warranty In order for the factory warranty to be valid the installation
9. tening to When switching from COM 1 to COM 2 while Com 2 has NOT been se lected Com 1 audio will be switched off In essence switching the mic selector will not effect the selection of Com receiver audio 1 4 1 Volume Control The pilot volume control knob adjusts the loud ness of intercom and music in the pilot s head 4 phones only It has no effect on selected radio w audio levels The copilot volume control adjusts the loudness of the intercom and music in the copilot headset The passenger volume is also adjusted by the copilot volume control Most general aviation headsets have a built in volume control so volume can be adjusted locally The copilot volume control is also controllable through the rear connector so a tandem aircraft can ad just the volume from a different location 1 4 2 VOX Squelch Control The PMA4000 incorporates PS Engineering s revolutionary ntelliVox No adjustment of the squelch control is required Through two individual signal processors the ambient noise appearing in all four microphones is constantly being sampled Non voice signals are blocked When someone speaks only their microphone circuit opens placing their voice on the in tercom Pilot Ge Copilot The system is designed to block continuous tones therefore people hum ming or whistling in monotone may be blocked after a few moments For best performance the headset microphone must be placed within 4 inch

PMA4000

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