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J7-9: Wiper (Orange):
This may be connected to the all call input of the PA equipment if needed. It is the wiper
of the form C relay that is energized when the system broadcasts over the PA.
AE-1 to PART-1 main board connections:
This is
done at the factory and should not be touched or changed.
P1:1 green of AE-1 to pin 1 of JP-5 in PARTI (RX in 1)
P1:2 red of AE-1 to P1:2 of PARTI-1
P1:4 black of AE-1 to P1:4 of PARTI-1
P1:9 white of AE-1 to P1:3 of PARTI-1
P1:11 gray of AE-1 to P1:11 of PARTI-1
P1:12 orange/white pf AE-1 to P1: 12 of PARTI-1
P1:13 violet of AE-1 to pad for anode of D-32
P2:2 red to pin 2 of JP-23 of PARTI-1 (COR 2)
P2:3 brown of AE-1 to pad of R105 going to J2:9
P2:4 black of AE-1 to pad of RJ-26 going to J2:1
P2:5 blue of AE-1 to via going to J2:10
P2:7 yellow of AE-1 to pad for R-105 going to J2:8
P2:8 green/white of AE-1 to pad for R-106 going to J2:7
P2:9 white of AE-1 to pad for RJ-23 going to J2:2
Balanced PA output adjustment:
The PARTI-1 is shipped with RP-1 in its center position.
With RP-1 in its center position adjust the PA out in the MPS software, 100% will give approximately 160mVpp at
pins 4 and 7 of J7 with a 600ohm load and .06% will give approximately 12mVpp at pins 4 and 7 of J7 with a
600ohm load. Levels above 114% in SW will cause distortion.
If the PA requires more or less then the above levels, adjustment of RP-1 will be necessary.
Adjusting RP-1 clockwise will increase the level and counterclockwise will decrease the level.
Unbalanced or single ended output adjustment:
Adjust the PA out in the MPS software to match the input of the PA system .06% will give approximately 50mVpp
pin 5 of J7 and 114% will give approximately 1 Vpp at pin 5 of J7 with a 47K load. Levels above 114% in SW will
cause distortion.
Radio output level adjustment:
Start with the impedance jumper JP11 in its default position of in and adjust the radio out level in the MPS
software to obtain full deviation of the transmitter, if the level cannot be set low enough in SW then change the
position of jumper J11 to out and then readjust the level in SW.
