PS Engineering
PMA450B Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-450-0600
Page 3-3
Rev. 5, August 2020
The two inputs are from top to bottom:
•
Switched input #1 J1, Pin 7 wrt Pin 8 (Default ADF)
•
Switched input #2 J1, Pin 21 wrt Pin 22 (Default DME)
The customer will have access to rename. Maximum 9 letters per line and
A thru Z, a through z and 0 thru 9
will be available. Note: If no marker version PMA450B (-020X) an external marker can be connected to
these inputs.
•
Press the line select for desired input.
•
Turn the large outer knob to select the letter to change.
•
Turn the small, inner knob to increment or decrement the letter.
•
You can select 9 characters, A through Z, 1 through 9.
•
You can quickly clear the whole line by turning the outer knob to move the cursor all the way to
the right or left until the line clears.
•
Blank spaces can’t be added to the end of a string, but you can add a temporary character and go
back and change it to a space:
ADFA1
Change extra “A” to space ADF 1
Cycle the PMA450B power to exit setup screen.
Figure 3-13 Rename Input Menu
3.17.3 Options
3.17.3.1 Remembering Music Mute Mode
As shipped by the factory, the PMA450B automatically default to “Mute Off.” This ensures that the music
will always be muted until positively changed by the pilot.
