PRX Series SW1 Schematic (Input Module).pdf

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3
2
+
-
4
1
8
4
1
8
3
2
3
-
+
8
1
4
6
5
-
+
7
2
+
-
5
6
+
-
7
6
5
-
+
3
7
+
-
4
5
1
8
6
+
-
7
Inputs
3
2
+
-
4
1
8
Configuration Amplifier
DSP Channels
DSP Channels to J10 Pins
FR1
LF, HF
1, 2
Ch1 to 2&3, Ch2 to 8&9, Ch3 to 5&6
FR2
LF, MF, HF
3, 2, 1
Ch3 to 2&3, Ch2 to 5&6, Ch1 to 8&9
SW1
LF
1
Ch1 to 2&3, Ch2 to 8&9, Ch3 to 5&6
----------------------------------------------------------------------------------------------------------------
Amplifier to J10 Pins
LF to 2&3, MF to 5&6, HF to 8&9
2
Thru Outputs
J10
AMP CON
6
5
-
+
7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
3
2
+
-
4
1
8
5
6
+
-
7
3
2
+
-
4
5
1
8
6
+
-
7
2
3
-
+
8
1
4
High gain (244), BW=1Khz with output offset approx +1V
6
5
Signal present LED (Green)
-
+
7
6
5
-
+
7
D2
2
3
-
+
8
1
4
From DSP
To Connector
This is a comparator configuration. Monitors the ADC input (CLPADC)
and when near saturation (+/- 1.20V pk) outputs a square wave
The threshold is set by the resistor network at the (+) input
D1
6
5
-
+
7
3
2
+
-
4
1
8
Clip LED (Yellow)
2
3
-
+
8
1
4
6
5
-
+
7
Short Pins 1&2 , 3&4
To DSP
From Audio Input
From CPU
To DSP
To Relays
To ADC
To AMPLIFIER
To Analog Outputs
From CPU
From ADC

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