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A-7
PVS 204SA Switcher • Reference Material
PRELIMINARY
Right
Channel
Left
Channel
Stereo
Stereo
Mono Sum
Limiter
+
1
2
3
4
Aux/Mix
Input
+
+
(+)
(-)
L
7
Power
Amplifier
With
Output
Filters
+
-
+
-
+
-
+
-
Twisted Pair
Differential
Audio Input
1
2
3
4
+
-
+
-
+
-
+
-
+
-
Balanced Line
Level Input
Tone
Controls
:
Volume,
Treble,
Bass,
Loudness
High Pass
Filter
ON
OFF
ON
OFF
Input Channel
Gain
High Pass Filter
On/Off
DIP Switch
Stereo/Dual Mono
DIP Switch
Software
Controlled
Software
Switched:
Limiter On/Off
Aux/Mix
Level Encoder
Audio MUX
Audio MUX
Power Amp
Level
Dual
Mono
Dual
Mono
(+)
(-)
R
Audio Block Diagram
The diagram below represents audio signal ow within the PVS 204SA.
Figure A-1 — PVS 204SA audio block diagram