Studer Vista 9, Operating Instructions Manual

Page: 56 / 574

2- Desk Operation
2.4 Control Bay Details
2.4.1 Area 1 – system Power On/Off
SYSTEM: STBY
Indicates that AC power is connected to the desk.
MAIN: ON
Vista 9 contains two control PCs by default
. One is the main system, the
second acts as ‘meter’ control system that drives the graphics of the TFT
meter screens. The ‘meter’ system also acts as a redundant system for the
whole desk. If the main system should fail and the desk is switched over to
the redundant system, the TFT screens will remain dark. In such a case the
fader LED meters are used for metering.
The system is powered up by pressing the
MAIN: ON
key. For switching the
system off, either the ‘Shutdown’ command in the windows desktop is used,
or the
MAIN: ON
key is pressed for 3 seconds.
When pressing this key for longer than 10 seconds, the desk is powered off
without shutting down the operating systems . This is normally used for service
purposes only.
SCREEN ACCESS: RED
Pressing this key causes a ‘small’ redundancy switchover, i.e. keyboard,
trackball and GC screen are switched from the ‘main’ to the redundant ‘meter’
PC, and vice versa. The
SCREEN ACCESS: RED
key is illuminated for as long
as the redundant ‘meter’ PC is accessed.
REDUNDANCY:
Pressing this key for more than 3 seconds causes a ‘large’ redundancy switch-
over, i.e. the desk is switched to the redundant ‘meter’ PC, and vice versa.
The key is illuminated as long as the redundant ‘meter’ PC is connected to
the desk.
DESK: ON
Indicates that the desk is switched on. It flashes if one of the 24 V
DC
supply
units is defective (also if one of the redundant units is defective).
For service purposes, it may be necessary to power off the desk part only,
while the control PCs remain on. This can be accomplished by pressing this
key for several seconds. Another short press will power on the desk again. A
warning message will be displayed, and the GC will be restarted.
XLR Socket
The XLR socket in this area can be used for plugging in a gooseneck talkback
microphone. The
CAL
trimmer potentiometer accessible through a small hole
below allows matching the input gain to the microphone in use.
USB Socket
At the top of this area an USB socket is provided for connecting an USB
memory device – this is useful for parameter or configuration backup/restore,
etc.
Vista 9 Digital Mixing System
Date printed: 27.0.0
SW V4.5