Operator’s Guide
When a register is write protected it can not be renamed from the
Register Menu. The RENAME soft button will not be available.
When a register is write protected it cannot be deleted from the USB
Register Management Menu.
Pan Pot Offset Calibration
The pan pot offset calibration is used to calibrate the pan pot mechanical
center detent to the exact audio 'center' of a stereo pair. This offset
calibration is stored locally in the mixer's flash memory. The pan pot
calibration is performed at the factory and under normal operating
conditions does not need to be re-calibrated.
In the event the mixer's flash memory is changed or the mixer's
Fader/Switch module is changed it maybe necessary to re-calibrate the
pan pots. Indication that a re-calibration is necessary is when the pan
pots are centered yet the left or right pan indicators in the Main View are
still visible. Refer to “Main View“ on page 25 for more information.
Note
Always make sure that there are no audio offsets present before checking
pan pot indicators. Refer to “Fader Level View“ on page 31 for more
information.
To re-calibrate the pan pots perform the following:
1.
Adjust all pan pots to their center detent position.
2.
Enter “pan” at the
mon>
prompt.
3.
The mixer will respond with a “Pan offsets saved” indicating that the
re-calibration is complete.
Note
After a pan pot calibration is performed it is necessary to re-adjust each
pan pot in order for the new calibration values to take effect.
Optional GPI Interface
The optional GPI (General Purpose Interface) adds 4 additional GPI
inputs to the Gray|328. The four GPI inputs are defined as follows:
•
GPI 1
: Progam Out on, Program bus selected for monitoring.
•
GPI 2
: Program Out off, Record Return inputs selected for
monitoring.
•
GPI 3
: Recall next register.
•
GPI 4
: Recall register 1.
Note
The optional GPI interface can only be factory installed.
All GPI inputs are contact closure to ground.
Appendix C: Diagnostic Port/GPI Option
Page 111
