Extron Electronics PVS 305SA User Guide - Manual (Page 28)

Operation and Setup, cont’d
PVS 305SA Switcher • Operation and Setup 3-6
PRELIMINAR
Y
Amplifier level control
Amplifier level control is adjusted via RS-232 or control software only.
See chapter 4, “Serial Communication” , for details on RS-232 control.
Bass, treble, and loudness control
For optimum audio quality, the audio input levels and the bass, treble, and
loudness controls must all be set up properly. Input audio levels may need to be
adjusted depending on the variation of the output levels from different source
devices.
N By default these levels are set for the consumer product level of -10 dBV.
Bass and treble should be adjusted once the input and output levels have been
adjusted. These are adjusted by RS-232 control only, with a range from -10 dB to
+10 dB. By default the bass and treble have been set at 0 dB. See chapter 4, “Serial
Communication”, for details on RS-232 control .
The loudness on/off (default off) switch function is also controlled by RS-232.
VoiceLift level adjustment
To adjust VoiceLift microphone levels, rotate the MIC adjustment knob through 43
positions (in 1 dB steps) from -18 dB to +24 dB, default is 0 dB.
PEAK
NORMAL
SIGNAL
AUDIO LEVEL ADJUST
PAGING
SENSOR
SENSITIVITY VOICELIFT
MIC PEAK
NORMAL
SIGNAL
INPUT
PEAK
NORMAL
SIGNAL
Signal threshold;
raise input gain.
Level has been
properly adjusted.
Level set too high,
lower input gain.
Figure 3-5 — Front panel VoiceLift Mic Min/Max LED and adjustment
knob
Paging sensitivity adjustment
To adjust Paging sensitivity, rotate the Paging Sensor adjustment knob clockwise to
increase sensitivity and counter-clockwise to decrease sensitivity.
PEAK
NORMAL
SIGNAL
AUDIO LEVEL ADJUST
PAGING
SENSOR
SENSITIVITY VOICELIFT
MIC PEAK
NORMAL
SIGNAL
INPUT
PEAK
NORMAL
SIGNAL
Signal threshold;
raise input gain.
Level has been
properly adjusted.
Level set too high,
lower input gain.
Figure 3-6 — Front panel Paging Sensor Min/Max LED and adjustment
knob
Paging sensor delay (0-8, in 1 second steps) can be set via RS-232 or control
software. The default = 0 (disabled).
N The Paging Sensor port must be enabled in order to work.