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Rev. 12 May 2012 Covered under one or more of the following Patent No. 4,941,187, 5,903,227, 6,160,496, 6,493,450 FAA-Approved: TSO C50c, C35d EASA-Approved ETSO C50c, 2C35d For units with serial number AB05403 and above May 2012 PMA8000B Pilot Guide 202-890-0202 Page 1...
When the unit is turned off, either by pressing the volume control, or if the breaker is pulled removing power, the PMA8000B is in Fail-Safe mode. In this mode, the pilot’s headset is connected to COM 1 for transmit and re- ceive, and connected to unswitched input #1 for priority audio alerts.
Unless the audio panel is in “split” mode, the PMA8000B gives priority to the pilot’s radio Push-To-Talk (PTT). If the Monitor function is activated, the audio from this radio will be muted when the primary radio (selected for transmit) is receiving a signal.
The pilot and copilot positions work with stereo or mono headsets. If a mon- aural headset is plugged in to a PMA8000B Stereo installation, one channel will be shorted and all passengers will lose one channel unless they switch to the “MONO”...
COM 2 XMT (bottom) buttons at the same time. All four indicators will come on. In the split mode, the pilot is on COM 1, while the copilot is on COM 2. May 2012 PMA8000B Pilot Guide 202-890-0202 Page 5...
If the stuck be- comes ungrounded, normal operation is restored. Utility Jack The 2.5 millimeter (3/32”) jack on the front of the PMA8000B has three dis- tinct functions, cell phone input, Advisory audio input and music input (Continued on page 11)
On phone Not connected Some cellular telephones do not provide sidetone (where you hear yourself speak). You can have the PMA8000B provide sidetone by holding both the TEL and ADF buttons at the same time, for more than one second.
Music muting will follow the modes listed above. Smart Function Keys (SFK) Configuration Secondary functions give the PMA8000B some special capabilities. “Intercom” allows the passengers and crew to converse, in ALL in- tercom mode, without distracting the crew from radio duties. The pas- senger microphones are cut out from the crew when the radio is ac- tive, and the passengers never hear aircraft radios.
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ISO and ALL intercom modes. The PMA8000B will announce the Alternate Intercom and Music distribution functions at unit power up. To defeat the announcement at power up, hold the TEL and AUX buttons for about two seconds.
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Monitor mode activated ICS mode Every 3 seconds Pilot has music in ISO Mute and SPR buttons Every 1 second PA Mode active This chart shows you what the blinking LEDs mean. Page 10 202-890-0202 PMA8000B Pilot Guide Rev. 6...
“Smart Jack” Function When the PMA8000B has an audio signal on music #1 from the rear connec- tor, the front panel jack automatically becomes a Priority Advisory input, and is heard in the crew headphones, and this input will NOT be muted by radio or intercom., if the Music 1 audio is actively playing.
“Music” function controls how music is distributed in your airplane. There are two music sources available to the PMA8000B, Music 1 input can be either on the front jack, or the Music 1 input at the rear connector (Pins 23 and 24, J2).
Mute button, and include voice annunciations of the mode selected. • Mute On - music will mute with either intercom or radio - MUTE but- ton is LED lit. Voice annunciation is "Mute on." May 2012 PMA8000B Pilot Guide 202-890-0202 Page 13...
MUTE button LED is OFF. Annunciation is "Mute off." When the PMA8000B is turned on, it always begins in “Mute on” mode. The passengers’ intercom also has a SoftMute™ circuit. If the passengers hear the radio, or talk on the intercom, the music will mute. If the audio panel is in CREW mode, then the radio reception will not affect the passen- ger music.
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Backlighting The white text backlighting is controlled by the aircraft dimmer, while the green indication LEDs are automatically controlled by the light sensor on the PMA8000B. May 2012 PMA8000B Pilot Guide 202-890-0202 Page 15...
PS Engineering dealer. 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, PS Engineering will send a no-cost replacement unit at customer shipping expense.
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