Videotek TVM9100PKG Installation And Operation Handbook page 116

General Operation
Audio Output Level adjustment is made in the AUDIO SETUP > OUTPUT
PREFERENCES menu. The Audio Output Level adjustment default is 0 dB.
The phase bars are used to monitor the instantaneous phase relationship between two
channels of audio. The "+" marking indicates a phase difference of 0 degrees, and
the "-" marking indicates a phase difference of 180°. A properly phased stereo pair
produces a phase pointer that moves within the green zone, whereas a reversed channel
produces a pointer that moves within the red zone. The phase bar polarity in the
AUDIO SETUP > METER SETUP > CONFIGURE PHASE BARS > POLARITY
menu can be set to Normal or Reverse.
The effect of higher damping in a phase meter is to show an averaged rather than a
peak value of phase. The Phase Bar Damping in the AUDIO SETUP > METER
SETUP > CONFIGURE PHASE BARS > DAMPING can be set from FAST, 1 to 10,
and SLOW.
The Lissajous display appears for two and four bar graphs on the right of the audio
pane. The Lissajous display shows the amplitude and phase relationship between two
input signals.
Vertical Audio display diagrams are shown in Figure 3-50 to Figure 3-53 and
described in Table 3-40 to Table 3-43. The Vertical audio graticule scales change
according to the scale selections made in the Setup menu and the format being
displayed. Some of the markings in the illustrations do not appear on the display.
92 TVM Series Installation and Operation Handbook
Copyright © 2008, Harris Corporation