TC Electronic DB2, Руководство пользователя

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FRONT PANEL OVERVIEW FRONT PANEL OVERVIEW
POWER On/Off
Switches power On/Off.
To completely disconnect from
mains, the Rear panel POWER
switch must be used.
PCMCIA Slot
For software updates and
preset backups.
ERROR LED
Indicates various error states,
e.g. signal overflow, digital
input or sync lost.
48/44.1/32 kHz LEDs
Indicates output sample rate.
Note that input sample rate
may be different when DB2’s
sample rate converter is
engaged. A blinking sample
rate LED indicates a sync
error, e.g. that a digital input is
unavailable.
ANALOG IN/DIGITAL IN
Indicates currently selected
input type. In case digital input
is lost, the Analog In LED
blinks to show that the unit has
switched to analog input for
redundancy purposes.
DUAL MONO LED
Indicates that the DB2 is
operating in Dual mono mode.
EDITED LED
Indicates that the currently
recalled preset has been
edited but not stored.
GAIN Meter
Indicates the current Loudness
correction gain as per ITU-R
BS.1770 or ITU-R BS.1770-2.
OPTIMIZE Meters
Indicates gain reduction in the
5-band processor.
When Utility is activated,
this section is used for alpha
numerical display.
LIMIT Meter
Indicates gain reduction of the
output true-peak limiter.
INPUT/OUTPUT Meters
• The Input meters indicate
the level of the Input signal
after the In Gain control
(set via the TC Icon control
interface).
• The Output meters indicate
the current Output level.
• Threshold value for meter
color change:
For both Input/Output
meters: Below -20 dB
the meter LEDs are green.
From -20 dB to 0 dB LED
color can be green or
yellow.
The value for this color
change is set via the TC
Icon Editor on the System
Front page.
UTILITY & OK Keys
The UTILITY and OK keys are used for
software version check and access to Reset
and Software Load menus – see appendix for
details.
These keys do not disturb operation, and
may be used while the unit is on-air.