PS Engineering Inc. ®
PAR200A Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0200 Page 2-10 Rev. 4, DEC. 2017
Figure 2-2 – PAR200A Adjustments
2.9 Microphone gain reduction (only available for P/N 050-228-0200)
For installations in very noisy aircraft, a reduction in the intercom microphone input gain might be desirable.
The PAR200A has two DIP switches located on the main board that can switch the inputs to a lower gain
setting. PS Engineering installers call for the Service Aid.
Figure 2-3 DIP switches
Change the settings as shown in the table below.
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