Input Configuration; Input Gain (Analog Inputs Only) - Lexicon DC-1 - ADDENDUM Owner's Manual Addendum

DC-1 Digital Controller
The DC-1 has eight inputs, each of which can be associated with any of the
five video and four digital audio inputs. Selecting Input Configuration from
the Setup menu displays a sub-menu which lists these inputs and allows
you to select them individually for adjustment. Each input has an identical
parameter sub-menu. V-DISC is shown below as an example.
For optimal performance when using analog inputs, the unit must be driven
to its full input level without overloading. Despite industry attempts at
standardization, different sources have a wide range of output levels. To
compensate for this, each of the eight DC-1 analog inputs can be assigned
a different input gain, assuring optimum performance regardless of the
source. For use with a calibration tone, the Dolby reference point is indi-
cated by an enlarged tick mark on the on-screen level meters.
The DC-1 GAIN function can be set to AUTO to monitor the analog input
level and automatically optimizes the input gain. If the signal level is too
high, input gain is automatically decreased to a point which does not cause
an overload. When the signal level remains low (>12dB below clipping for
2.5 minutes), the input gain is incremented in 1dB steps to maximize
dynamic range.
When MANUAL is selected, the display shows the last auto level setting. (If
the auto level feature has not been used, the display shows the last manually
entered level.) The auto level setting indicates the optimum input level
value as determined by the unit. The MENU
decrease the input gain in 1dB increments for the selected input over a range
of -18dB to +12 dB. The setting is displayed in dB along with horizontal
bargraph meters on the on-screen display to indicate incoming signal level.
and buttons increase or
Installation and
Installation and
Calibration
Calibration

Input Configuration

Input Gain
(Analog Inputs Only)
The GAIN control is only available
for analog inputs. Whenever a digi-
tal input is selected under AUDIO
IN, this control is turned off.
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