PS Engineering PMA9000EX Installation Manual - Manual (Page 16)

PS Engineering
PMA9000EX Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-920-0000 Page 2-9 Rev. 9, Jan. 2011
 Speaker Volume- Turn adjustment clockwise to increase cabin speaker output.
 Marker Beacon Volume, turn adjustment counterclockwise to increase marker beacon audio
level.
 TEL volume, turn adjustment Clockwise to increase the incoming telephone audio.
 ANN VOL Function Mode Annunciation Volume – controls the level of the to access voice an-
nunciations contained in the unit. (Top cover must be removed).
 Unswitched Input 3 Volume, adjust from 50% to 200% of input value. (Bottom cover must be
removed).
 LCD CST: adjusts display contrast.
Figure 2-3 – Unswitched 3 Audio Level (bottom cover removed)
2.8 Communications Antenna Installation Notes
For best results while in Split Mode, it is recommended that the one VHF communications antenna is lo-
cated on top of the aircraft while the other communications antenna is installed on the bottom. Any an-
tenna relocation must be accomplished in accordance with AC 43.13 -2A, aircraft manufacturers’ recom-
mendations and FAA-approved technical data.
WARNING
It is probable that radio interference will occur in the split mode when the frequencies of the two ai r-
craft radios are adjacent, and/or the antennas are physically close together. PS Engineering makes
no expressed or implied warranties regarding the suitability of the PMA9000EX in Split Mode.
2.8.1 Audio Active Output
Pin 24 on the J1 connector (and PA Mute Pin 12 on J2) should be connected to Apollo CNX80 for audio
message prioritization, refer to CNX80 installation manual for details.