Yamaha MTX3 Manual Page 188

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List of settings in “Settings” dialog boxes Appendix
MTX Editor User’s Manual
188
The threshold value at which on/off switching will occur will be the middle value between
the maximum and minimum input voltage values (the value equal to the sum of the
maximum and minimum values divided by two). To prevent malfunctions, you should allow
plenty of room for detection (see “GPI Calibration” dialog box).
If the voltage has dropped because of cable length or noise, use the “GPI Calibration”
dialog box to adjust the maximum and minimum input voltage values. Since voltage may
become unstable, configure and set up your external circuit to ensure that there is ample
distance between the maximum and minimum values.
You can indicate the on/off status by assigning ON to one of the GPI Output ports.
Analog
Use this if you selected [Level] or [Send Level] as the [FUNCTION].
The level will be at the maximum value when the input voltage to the GPI IN is at
maximum (5V), and at the minimum value when the input voltage is at minimum
(0V).
Analog Inv.
Use this if you selected [Level] or [Send Level] as the [FUNCTION].
The level will be at the minimum value when the input voltage to the GPI IN is at
maximum (5V), and at the maximum value when the input voltage is at minimum
(0V).
High Active
Use this if you selected [ON] or [Send ON] as the [FUNCTION].
The function will turn on when the input voltage to GPI IN rises above the center
voltage, and will turn off when it falls below the center voltage.
If you’ve selected [Input Ch Mute Group] or [Zone Out Mute Group] as the parameter
type, mute on/off will be switched.
NOTE
0V
MAX
MIN
Level
+5V
0V
MAX
MIN
Level
+5V
ON
OFF OFF
ON
OFF OFF
Center voltage
GPI IN input
voltage max.
GPI IN input
voltage min.
NOTE
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