PS Engineering PMA9000EX Installation Manual - Manual (Page 33)

PS Engineering
PMA9000EX Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-920-0000 Page 3-12 Rev. 9, Jan. 2011
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3.11 Liquid Crystal Display Control
The contrast on the LCD display can be controlled for individual preference. The contrast has 10 steps,
with higher numbers being less contrast.
NOTE: Optimum Contrast is usually at level 3 or 4.
3.12 Secondary Navaid Selection (ADF, DME, AUX)
The Marker Beacon Audio is controlled from either the MKR button, or on the primary display screen.
Press the small knob to display the underline cursor, select MKR with large knob, and press the small
knob to toggle the audio on or off. See Section 3.6 for more detailed information.
The other secondary navigation audio (ADF, DME, and Auxiliary) is controlled through the data knob on
the submenu. Press and hold the small knob for 2 seconds to activate the submenu, rotate the large knob to
find the ADF or DME page. Rotate the small knob to turn the desired source on or off.