PS Engineering Inc. ®
PAR100EX Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-760-0000
Page 2-9
Rev. 11, Feb. 2013
All entertainment devices must be switched off for both takeoff and landing.
2.7.2.1 Entertainment 2 Mute (J2 Pin 13 & 14)
Connecting J2 pin 13 to pin 14 (or ground) through a SPST switch places the entertainment #2 music
source into the Karaoke Mode. In this mode, incoming music and intercom conversation will not mute the
music for the passengers’ intercom net. This allows uninterrupted music during casual conversation.
2.8 Disassembly
Remove the top cover, by removing five (5) Phillips head screws from the PAR100EX top.
NOTE: THE SCREW IN THE REAR OF THE PANEL IS A DIFFERENT LENGTH THAN THE
OTHER FOUR. YOU MUST PUT THE SHORTER LENGTH SCREW BACK IN THE SAME
LOCATION OR DAMAGE WILL OCCUR. See Figure #2-2.
There is a spacer on the screw on the front right corner that will fall out. Save and retain for later.
Figure 2-2 Screw Location and disassembly
2.9 Conversion to 12V electrical system.
As shipped from PS Engineering, the PAR100EX is configured to operate in 24 aircraft. This protects the
M760REM from damage if installed in 24 volt aircraft.
If operation in a 12-volt aircraft is desired, internal jumpers must be changed to allow operation of the
M760REM. Disassemble the unit as described in §2.8.
1.
The operating voltage is configured with selection jumpers located in the back corner near the
left sub-D connector. See Figure #2.
Long screws
Short screw
