Lexicon DC-1 Release Notice

Please note the following corrections and clarifications to the DC-1 operating information provided in your Owner's Manual.
1. When using a 48kHz digital connection from a source (DSS, DAT), the following effects are available:
THX Cinema
Logic 7
Pro Logic
Music Surround
Selecting any other effect will mute the output.
2. The DC-1 displays a blue or gray screen when no video signal is assigned to a given input, or when the video signal present
is very weak. Pressing the appropriate input selector again will turn off the overlay, allowing a weak video signal to be viewed
if desired. Pressing the input selector again will restore the overlay.
3. In the Dolby Digital version, the following changes have been made to the SETUP menu.
LISTENER POSITION
SURROUND DELAY is automatically adjusted for different settings of TIME ALIGNMENT and is not offered as a separate
menu selection.
Selecting A/V SYNC DELAY in the Listener Position menu now causes an adjustment screen to overlay the incoming
video signal.
LOCK SETTINGS
An AUDIO BITparameter has been added to this menu to allow manual defeat of the DC-1's automatic detection and
decoding of Dolby Digital and PCM stereo bitstreams. To play Dolby Digital data from a DAT, for example, set this control
to NON-AUDIO. For normal use, set to AUTOMATIC.
OUTPUT LEVELS
The range of the SUB PEAK LIMITER has been extended from 24 to 40dB. Adjustments of -5 to +35dB are displayed
where 0dB=85dB SPL in a properly calibrated system.
4. The inital values and ranges of several Effect parameters have been changed as follows:
Effect
MUSIC SURROUND
LOGIC 7
TV MATRIX
MUSIC LOGIC
5.1 MUSIC
5.1 LOGIC 7
5.1 TWO CHANNEL
*This parameter has been added to allow adjustment of the level of the surround channels, as many
AC-3 encoded soundtracks sound better when down-mixed to two channels with the surround level
increased by approximately 2-3dB.
Lexicon Inc. • 3 Oak Park • Bedford MA 01730-1441 USA • Tel: (781) 280-0300 • Fax: (781) 280-0490
DC-1 Digital Controller
Customer Software Release Notice
Two Channel
Music Logic
TV Matrix
Parameter
SIDE ROLLOFF
REAR DELAY OFFSET
REAR ROLLOFF
REAR ROLLOFF
REAR DELAY OFFSET
SUBWOOFER LVL
REAR ROLLOFF
DOLBY B NR
CENTER LEVEL
FRONT STEERING
SURROUND LEVEL
SIDE ROLLOFF
REAR ROLLOFF
REAR DELAY OFFSET
RE-EQUALIZER
REAR DELAY OFFSET
SURROUND LEVEL
SURROUND MIX*
Initial Value Range
4.0kHz
5ms 0-20ms
4.0kHz
8.2kHz
5ms 0-20ms
+0dB
8.2kHz
OFF
16
FULL
+0dB
4.0kHz
4.0kHz
0ms 0-20ms
OFF
0ms 0-20ms
+3dB
+2dB -5 to +5dB