PS Engineering PAC15 - Manual (Page 12)

PS Engineering Inc. ®
PAC15EX Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-015-0000 Page 2-6 Rev. 1, Jan. 2014
2.5.2.1 Entertainment 2 Mute (J2 Pin 13 & 14)
Connecting J2 pin 13 to pin 14 (or ground) through a SPST switch places the entertainment #2 music
source into the Karaoke Mode. In this mode, incoming music and intercom conversation will not mute the
music for the passengers’ intercom net. This allows uninterrupted music during casual conversation and
at times when radio communications are of lesser importance.
2.6 Adjustments
The PAC15EX is factory adjusted to accommodate the typical requirements for most aircraft configura-
tions. There are three adjustments in the top cover that allow the installer to tailor the specific functions.
 Unswitched Input 3 Volume, adjust from 50% to 200% of input value. (Bottom cover must be
removed).
Figure 2-3 – PAC15EX DIP Switches
2.7 Microphone gain reduction
For installations in very noisy aircraft, a reduction in the intercom microphone input gain may be desir-
able. The PAC15EX has two DIP switches located on the main board that can switch the inputs to a lower
gain setting.
Remove the top cover (see above), and locate the two DIP switches near the mounting rod at the rear of
the unit.
NOTE:
If top cover is removed
for ANY reason, you
MUST replace the cover
screws with the proper
length, otherwise damage
will result.
Shorter Screw
DIP Switches
Unswitched 3