DigiDesign D-Show Profile, Руководство пользователя

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Chapter 28: Troubleshooting 229
In Case of System Failure
D-Show includes multiple redundancy and fail-safe routines
that help protect against problems that could interrupt audio.
These include the ability to maintain mix control even if a
failure occurs, to reset software and hardware components,
and to completely reset and reinstall the system software.
For maximum protection, Redundant Power Supplies are in-
cluded standard in all hardware components. Redundant
Snake options are available to provide additional backup sys-
tem communication for uninterrupted operation.
Maintaining Mix Control
If at any time the system fails, or if the system is reset or re-
started, the D-Show backup mode is automatically engaged to
maintain audio throughput and essential mix control.
While the backup personality is engaged, a dialog appears
on-screen in the banner display. The system then begins to re-
set itself in the background, while you can continue to use the
faders and mute switches to perform basic mixing. Plug-Ins
continue to process audio but their controls cannot be
changed until the process is complete.
Features that Remain Active
The following essential mixing features remain available
while the backup personality is engaged:
• Bank Input Channels (Banks A–D); adjust levels and mutes.
(FX Returns are banked independently of Input Channels.)
• Bank to FX Returns; adjust faders and mutes
• Bank Output faders; adjust faders and mutes
• Control VCA masters, including VCA mutes, and have all
members of the VCA group reflect VCA adjustments
• Display the correct name for any fader in its LCD display,
even while banking
• Meter input signals on the channel input meters, and meter
bus outputs on the assignable meterbridge. The Selected
Channel meter continues to provide metering for the last
selected channel. Meter mode selection buttons remain ac-
tive on meterbridge (however, Meter mode does not auto-
matically follow output selection, if configured to do so).
• Compressor and gate meters remain active for all Input
Channels (however, Comp In and Gate In switches are not
available)
• Meterbridge System Status LEDs turn off
Power Supply Alert A power supply is failing or is not plugged in.
A power supply jumper switch is set incor-
rectly. Click Review to show the Options > Devices page. Reset
units as needed (see “Hardware Monitoring Window” on
page 232).
Check the power supply jumper switch to make sure it
matches the number of installed power supplies in the unit.
(See the
Redundant Power Supply Installation Guide .)
Control Surface Change A unit Bus ID has changed, a new console
has been detected, or a new sidecar has
been detected. Click to clear the message. Check unit Bus IDs to make sure
input channel strips are arranged as desired.
Date & Time Check Clock setting of D-Show system should be
checked against current time. Check and reset D-Show system time in the Options > Misc
page. Incorrect system time can affect D-Show data transfer
and plug-in authorizations.
If clock problems persist, the battery in the FOH Rack may
need to be replaced.
Sample Rate Conversion
Alert
SRC OFF LEDs flashing
(DSI option only) A sample rate mismatch or lack of clock has
been detected at a digital input. No immediate action required; automatic sample rate conver-
sion maintains digital throughput, allowing you to check set-
tings and connections between D-Show and external digital
devices later. For more information on digital connections
and synchronization, see “Digital Inputs and Sample Rate
Conversion” on page 15.
Hardware Monitor Alert The system has detected a hardware com-
ponent that is performing above or below its
hardware specification. Click HW Monitor to access the Hardware Monitor WIndow for
the device. See “Hardware Monitoring Window” on page 232.
Table 29. Troubleshooting D-Show Errors and Messages
Symptom or Message Possible Cause Solution