Lexicon DC-1 - REV 1 Owner's Manual
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Lexicon DC-1 - REV 1 Owner's Manual

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Owner's Manual
DC-1
Digital Controller
Base & THX Versions

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  • Page 1 Owner's Manual DC-1 Digital Controller Base & THX Versions...
  • Page 2 Lexicon, Inc. AUTO AZIMUTH Copyright ©1997 Lexicon. Inc. All Rights Reserved. Lexicon Patent: U.S. no. 4, 862, 502; other patents pending on the DC-1. Lexicon, Inc.• 3 Oak Park • Bedford MA • 01730-1441 • Tel: 781-280-0300 • Fax: 781- 280-0490 www.lexicon.com...
  • Page 3 Dansk Suomi Vigtig information om sikkerhed Tärkeitä turvallisuusohjeita Säilytä nämä ohjeet tulevaa käyttöä varten. Gem denne vejledning til senere brug. Seuraa kaikkia yksikköön merkittyjä ohjeita ja varoituksia. Følg alle anvisninger og advarsler på apparatet. Käytä aina oikeaa verkkojännitettä. Tehovaatimukset selviävät valmistajan Apparatet skal altid tilsluttes den korrekte spænding.
  • Page 4 Deutsch Español Wichtige Sicherheitsanweisungen Instrucciones importantes de seguridad Heben Sie sich diese Sicherheitsanweisungen auch für später auf. Guarde esta instrucciones para uso posterior. Befolgen Sie alle auf der Vorrichtung stehenden Anweisungen und Warnungen. Utilice siempre el voltaje correcto. Diríjase a las instrucciones de operación Immer nur mit der richtigen Spannung verwenden! Die Gebrauchsanweisungen del fabricante para obtener las especificaciones de potencia.
  • Page 5 Owner's Manual DC-1 Digital Controller Base & THX Versions...

  • Page 6: Table Of Contents

    DC-1 Digital Controller Contents Introduction to the DC-1 ..........1 Introduction ..............1 Unpacking and Inspection ..........3 Using the Documentation ..........3 System Overview ............4 Glossary of Terms ............. 4 DC-1 Block Diagram ..........5 Installation and Calibration ........7 Controls and Indicators ..........
  • Page 7 Lexicon Contents, cont'd. DC-1 Effects ............... 31 Customizing Effects ............. 31 Comparing a modified Effect to the factory preset version • Restoring the original parameter values of an Effect • Naming your custom Effect • Restoring the original Effect Name • Listening to only the DC-1 Effect Panorama ..............

  • Page 8: Introduction To The Dc-1

    Unfortunately, our listening rooms do not approximate the acoustics of a good concert hall, an intimate jazz club, or a magnificent cathedral — our ears tell us where we really are. The Lexicon DC-1 is designed to overcome this fundamental limitation to two-speaker reproduction and bring us closer to the ultimate goal of transporting ourselves to the original musical event.
  • Page 9 The requirements for processing sound for home theater are quite different than those for music. Lexicon invented the technology that permits the most accurate reproduction of film sound in the same system that is used for music listening, and the software-based DC-1 is optimized for each of these unique tasks.

  • Page 10: Unpacking And Inspection

    This manual describes both the DC-1 base system and the THX version. Some of the features described are available only in the THX version. To upgrade a base system, contact your dealer, or Lexicon. In most cases, upgrading can be accomplished very easily and rapidly.

  • Page 11: Glossary Of Terms

    Introduction to the DC-1 Lexicon System Overview Although the DC-1 performs very complex signal processing, a great deal of effort has gone into making the technology behind the effects as transpar- ent as possible to the user. To understand the overall organization of the unit, it is helpful to define those few terms which are unique to the DC-1.

  • Page 12: Dc-1 Block Diagram

    Introduction to the DC-1 DC-1 Digital Controller DC-1 Block Diagram...

  • Page 13: Installation And Calibration

    Installation and Installation and Calibration Calibration DC-1 Digital Controller Controls and Indicators The Front Panel 1. ON/OFF 3. REC/ZONE 2 4. EFFECT 7. IR Receiver and LED ON/OFF alternately puts the Selects and deselects the Displays the current effect, The IR receiver has an asso- DC-1 into and out of standby current input source for the then steps through all avail-...

  • Page 14: The Rear Panel

    Installation and Calibration Lexicon The Rear Panel CAUTION: Never make or break any connections to the DC-1 with the rear-panel power ON. Make sure any associated amplifiers have been turned off for at least one minute before turning this master power switch on or off.

  • Page 15: The Remote Control

    Installation and Calibration DC-1 Digital Controller The Remote Control 1. OFF and ON 8. RECORD/ZONE 2 Separate OFF and ON but- Selects and deselects the tons are provided for learning current input source for remotes, so that an auto- RECORD and ZONE2 out- mated key sequence does puts.

  • Page 16: Remote Control Accy Functions

    Installation and Calibration Lexicon Remote Control Press and hold ACCY while pressing DONE to activate a "You Are Here" mode ACCY Functions which: • Activates On-Screen display with 2 • Disables mute second timeout • Sets volume to -30dB • Sets Remote Trigger ON •...

  • Page 17: Connection

    The DC-1 may be installed on a shelf or in a standard 19" equipment rack, using rack-mounting hardware available from Lexicon. Observe the fol- lowing precautions: • Select a dry, well-ventilated location out of direct sunlight.

  • Page 18: Wiring Considerations

    Installation and Calibration Lexicon Wiring Considerations There is controversy over the audible effects of different types of intercon- Audio/Video Cables nects. Good engineering practices have minimized the effect that cables might have on the inputs and outputs of the DC-1 — but feel free to evaluate different interconnects in your system.

  • Page 19: Connecting The Dc-1 As A Preamp

    Installation and Calibration DC-1 Digital Controller Connecting the Input sources can each be connected directly to the DC-1 inputs. A typical system might use the TV, VCR1, V-DISC and CD and TUNER (output DC-1 as a preamp through a preamp). Since TAPE, TUNER and CD are audio only, the video output will default to the video signal fromVCR 1.

  • Page 20: Video Connections

    Installation and Calibration Lexicon Video Connections The DC-1 has five composite video inputs, three of which also support S- Video. Connection to an S-Video input will override any standard compos- ite signal connected via the RCA-type connector. Note that an S-Video input will be output on both the composite and S-Video outputs.

  • Page 21: Digital Input Status Detection

    Installation and Calibration DC-1 Digital Controller Digital Input Status If digital audio input is selected without a valid source, or if a digital error state which affects audio performance is detected, all audio outputs are Detection muted and an error message is displayed. Muting is also activated on receipt of digital data encoded as “non-audio data”.
  • Page 22 Installation and Calibration Lexicon Zone 2 Remote Control The remote control can be placed into an exclusive Record/Zone 2 control mode during normal operation by holding down ACCY while pressing RECORD/ZONE 2. This will display the message: ZONE 2 IR REMOTE...

  • Page 23: System Configuration

    Installation and Calibration DC-1 Digital Controller System Although the DC-1 memory is cleared before it leaves the factory, it is good Configuration practice to reset the unit before programming it. The following procedure resets the unit to factory condition: Turn the DC-1 OFF with either the front panel switch or the remote. Turn the unit back ON and immediately press BYPASS.

  • Page 24: The Video On-Screen Display

    Installation and Calibration Lexicon The Video In addition to the front-panel LCD, the DC-1 contains a character generator for a video overlay display on television sets. Since the on-screen display is On-Screen Display capable of showing the full menu of options available at any point, calibra- tion of the system is faster and easier if the DC-1 video output is connected to a video input on a television monitor.

  • Page 25: System Setup

    Installation and Calibration DC-1 Digital Controller System Setup The DC-1 Setup menu allows you to customize the system defaults to suit a wide range of possible system configurations. Each of the five entries in the Setup menu will be discussed in detail in this section. Select SETUP from the main menu to display the Setup menu.
  • Page 26 Installation and Calibration Lexicon Although you are given the option of defeating the auto level system by selecting MANUAL, this is not recommended. 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...
  • Page 27 ENABLED or DISABLED for the selected input. The factory default is ENABLED (high) for A/V inputs and DISABLED (low) for audio only inputs. (+5VDC is available via internal jumper. Contact your dealer or Lexicon Customer Service to perform this change.)

  • Page 28: Setting The Speaker Configuration

    Installation and Calibration Lexicon Setting the Speaker The Speaker Configuration menu allows a wide range of choices in speaker Configuration placement and room setups to provide optimal performance in almost any room with virtually any speaker system. The menu allows you to set the system for performance with center, sides, rear or subwoofer speakers.
  • Page 29 Installation and Calibration DC-1 Digital Controller Sides This menu sets the system for your particular side speaker configuration. Systems with side speakers should be designated as STANDARD or DI- POLE. DIPOLE indicates a THX speaker configuration, and causes the unit to mute the rear outputs when the THX effect is used.

  • Page 30: Setting Output Levels

    Installation and Calibration Lexicon Setting Output Levels When DC-1 input and output levels are set properly, the entire system will be calibrated to play films at the level intended by the director. Setting the output levels is easy, particularly if a Sound Pressure Level (SPL) meter is used.
  • Page 31 Installation and Calibration DC-1 Digital Controller In the absence of an SPL meter, it is possible to set the output level by ear. Use the internal noise generator in the DC-1 to adjust all volumes to be the same as they cycle around the various speakers. Depending on timbre variations between your speakers, this may be difficult to judge —...

  • Page 32: Setting Rear And Center Delays

    Installation and Calibration Lexicon Setting Rear The Listener Position menu is used for setting the rear and center delays and calibrating the Panorama effect. and Center Delays Rear Delay When presented with several similar sounds (as in the case of surround sound) we tend to localize on the first sound we hear.

  • Page 33: Calibrate Panorama

    Installation and Calibration DC-1 Digital Controller Center Delay In most setups, although the left and right speakers are about the same distance from your listening position, the center speaker is often closer to you, causing the sound from the center speaker to reach the listening position earlier than the sound from the left and right.
  • Page 34 Installation and Calibration Lexicon The SPEAKER ANGLE, displayed in degrees, adjusts for wide or narrow speaker spacing (relative to the listening position). For the two canceling signals to arrive at both ears at the same time you must be centered precisely between the speakers.

  • Page 35: Customization

    Installation and Calibration DC-1 Digital Controller Customization After you have calibrated and customized the DC-1, there are two addi- tional steps recommended to safeguard the settings. First, document your adjustments. Second, consider locking the settings so that they cannot be inadvertently changed.

  • Page 36: Equalization (Thx)

    Installation and Calibration Lexicon Equalization (THX) The THX version of the DC-1 provides Equalization controls as a selection in the Main Menu. Press SELECT to open the Equalization menu which contains Bass and Treble level controls and a Loudness parameter.

  • Page 37: Dc-1 Effects

    DC-1 Effects DC-1Effects DC-1 Digital Controller DC-1 Effects When EFFECT ADJUST is selected from the Main menu, the on-screen display shows a list of parameters specific to the current effect, as well as the current value of each parameter. (The front panel display shows one parameter at a time).
  • Page 38 DC-1 Effects Lexicon Restoring the original The RESTORE PARAMETERS function allows you restore the currently selected Effect to its factory preset state. parameter values of an Effect When you select this function, you will be prompted to reconsider erasing your changes. — If you don’t want to erase your versions, press DONE to exit the menu.

  • Page 39: Panorama

    DC-1Effects DC-1 Digital Controller Panorama Panorama extracts the natural ambience from recorded music and moves it outward from the speakers, producing greater width and depth of image and a feeling of enhanced spaciousness. This mode adds no additional sound but expands the existing stereo image. Panorama also works with Dolby Stereo movies, bringing the surround track outward into the room.
  • Page 40 DC-1 Effects Lexicon REAR ROLLOFF sets the frequency above which the rear-channel sound is attenuated. The appropriate setting will vary with the program material. It should be set high enough to give presence and airiness to the rear sound without placing distracting instrumental overtones or other sounds behind you.

  • Page 41: Nightclub

    DC-1Effects DC-1 Digital Controller Nightclub The Nightclub Effect generates the appropriate early reflections for stereo simulation of many different intimate spaces, and sends the reflections to the side and rear speakers. Nightclub Parameters Parameter Initial Value Range HALL SIZE 4 Meters 4-17 Meters LIVENESS ROLLOFF...

  • Page 42: Concert Hall

    DC-1 Effects Lexicon Concert Hall The Concert Hall Effect generates the appropriate early reflections for stereo simulation of many different halls, and sends the reflections to all channels in addition to the direct signal in the main speaker. This Effect is not appropriate for highly percussive music.

  • Page 43: Church

    DC-1Effects DC-1 Digital Controller The Church Effect uses a reverberation algorithm, which differs from Church ambience in that it does not simulate the reflections of specific halls, but emphasizes rich, smooth reverberant decay in small and medium spaces. It works well for simulating a space with a long reverberation time relative to its size, such as a reverberant chamber, or a church.

  • Page 44: Cathedral

    DC-1 Effects Lexicon CENTER LEVEL adjusts the output level from the center speaker. SUB BASS BOOST boosts or cuts the subwoofer output level. Although the normal subwoofer level is set during the calibration procedure, with some recordings it may be desirable to increase or decrease this deep bass level.

  • Page 45: Music Logic And Music Surround (Thx)

    DC-1Effects DC-1 Digital Controller If there is a strong monaural speaking voice present at the same time, this component of the input to the Cathedral effect is reduced while the stereo component is increased. If the input signal is pure monaural speech the input is almost entirely attenuated.
  • Page 46 DC-1 Effects Lexicon CENTER LEVEL attenuates the level of the center channel and can turn it off completely. FRONT STEERING (available only in Music Logic) allows you to adjust the amount of steering in the front channels. When this control is set to FULL, the effect is identical to Dolby Pro Logic.

  • Page 47: Tv Matrix

    DC-1Effects DC-1 Digital Controller The TV Matrix effect provides surround effects for television viewing of TV Matrix monaural, stereo, and stereo synthesized programs. TV Matrix Parameters Parameter Initial Value Range AUTO AZIMUTH ON/OFF FRONT STEERING FULL 1/4, 1/2, Full, Off REAR ROLLOFF 20.0kHz 453Hz-20.0kHz...

  • Page 48: Logic 7 (Thx)

    DC-1 Effects Lexicon SIDE ASSIGN determines whether the information fed to the side speakers is from the front left and right or rear outputs. Availability of selections varies according to your speaker configuration. SIDE LEVEL controls the volume level of the side speakers. Although the default value is 0, the correct setting will vary with each recording, the room, and your personal taste.
  • Page 49 DC-1Effects DC-1 Digital Controller FRONT STEERING In the LOGIC 7 Effect, dialog, music, and surround effects are dynamically directed to the output channels, a process called steering. The FRONT STEERING control allows you to adjust the amount of steering in the front channels. When this control is set to FULL, the steering is identical to Dolby Pro Logic.

  • Page 50: Mono Logic

    DC-1 Effects Lexicon Mono Logic Mono Logic takes a monaural soundtrack and sends music and sound effects to the sides and rear through a room simulator mode while keeping the dialog in the center. Mono Logic Parameters Parameter Initial Value...

  • Page 51: Pro Logic

    DC-1Effects DC-1 Digital Controller This Effect provides Dolby Pro Logic Surround decoding designed for any Pro Logic Dolby Surround encoded movies, music, or television programs. Pro Logic Parameters Parameter Initial Value Range AUTO AZIMUTH ON/OFF SUB BASS BOOST +0dB -5 to +5dB EFFECT LEVEL +00dB -30 to +05dB...

  • Page 52: Thx Cinema (Thx)

    DC-1 Effects Lexicon THX Cinema (THX) This Effect, available only in DC-1’s equipped with THX processing, pro- vides Home THX Cinema surround decoding for any Dolby surround encoded movies, music or television programs. THX Cinema Parameters Parameter Initial Value Range...

  • Page 53: Party

    DC-1Effects DC-1 Digital Controller Party The Party effect allows unprocessed stereo signals to be played over all speakers for background music or for maximum acoustical output of the system. Party Parameters Parameter Initial Value Range HIGH PASS 40Hz OFF, 40-725Hz CENTER LEVEL 0-15 SUB BASS BOOST...
  • Page 54 roubleshooting Troubleshooting DC-1 Digital Controller Troubleshooting If you encounter a problem, please review the items in the following checklist. Also be sure to thoroughly check all other connected components such as speakers, receiver/amplifier/preamp, VCR, TV, CD player, etc. Problem Possible Cause and Solution Power does not come on Check line cord to ensure good connection to the AC outlet and to the receptacle on the DC-1 rear panel.

  • Page 55: Troubleshooting

    If you find that your custom settings are routinely being corrupted, the lithium battery in the DC-1 may be faulty. This part is not field- replaceable — contact Lexicon. If the unit is still behaving erratically, perform the Restore Defaults...
  • Page 56 DC-1 have now been reset to the values assigned when it cleared final Quality Control at the factory. If you cannot solve functional problems through these procedures, consult your dealer or Lexicon/Customer Service Department. DO NOT OPEN THE UNIT. DOING SO WILL VOID YOUR WARRANTY,...

  • Page 57: Specifications

    pecifications Specifications DC-1 Digital Controller Specifications Audio: 8 stereo (RCA) pairs Inputs: Minimum Input Level: 500 mVrms for maximum output 200 mVrms for Dolby level (Input Gain=0dB) Input Impedance: 100 k in parallel with 150pF Video: 5 composite (RCA), 3 S-video, NTSC, PAL, SECAM compatible Input Level and Impedance: 1Vpp, 75 Digital: 4: 2 coaxial (RCA), 2 optical (TOSLINK™), conforms to S/PDIF standard...
  • Page 58 DC-1 Digital Controller Installation Worksheet Model/Serial #________/____________ Installed by________________________________Phone____________________Date______________ Inputs VCR1 Gain _______ Name _______________ Effect _______ Digital _______ Video _______ Rec/Zone2 enabled blocked Trigger enabled disabled VCR2 Gain _______ Name _______________ Effect _______ Digital _______ Video _______ Rec/Zone2 enable blocked Trigger enabled...
  • Page 59 Lexicon, Inc. 3 Oak Park, Bedford MA 01730-1441 Telephone: 781-280-0300 Fax: 781-280-0490 www.lexicon.com Lexicon Part #070-11276 Rev 1 Printed in the United States of America...

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