Ps-engineering PAR200 User Manual download pdf (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

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

TEL VOL

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Ps-engineering PAR200 User Manual Page 17