PS Engineering PAR200 - Manual (Page 17)

PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 2-10 Rev. 4, Dec. 2013
2.9 Adjustments
The PAR200 is factory adjusted to accommodate the typical requirements for most aircraft configurations.
There are three adjustments under the top cover (see §2.8) that allow the installer to tailor the specific
functions.
 Unswitched Input 3 Volume, adjust from 50% to 200% of input value. Turn counterclockwise to
increase gain.
 TEL VOL- The received telephone volume. The unit is set at the factory for 75% of volume. Turn
Clockwise to increase the TEL receive volume.
 LCD CST: adjusts display contrast to suit individual preferences and ambient light.
SPR
VOL
US3
VOL
J
1
TEL
VOL
LCD
CST
Figure 2-3 – PAR200 Adjustments
2.10 Microphone gain reduction
For installations in very noisy aircraft, a reduction in the intercom microphone input gain may be desir-
able. The PAR200 has two DIP switches located on the main board that can switch the inputs to a lower
gain setting.
Remove the top cover (see §2.8 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 may
be present
DIP Switches
(inside)
Unswitched 3
LCD Contrast
3
TEL VOL