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

Digital controller base & thx versions
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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: Important Safety Instructions

    Power Lines An outside antenna should be located away from power lines. Acknowledgements The DC-1 is manufactured under license from Dolby Laboratories Licensing Corporation. "Dolby", "AC-3", "Pro Logic", and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. The DC-1 is manufactured under license from Lucasfilm Ltd. U.S. patent numbers 5,043,970; 5,189,703; and 5,222,059. Foreign patents pending. Lucasfilm and THX are trademarks of Lucasfilm Ltd.
  • 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

    Wiring Considerations ..........12 Audio/Video Cables • Speaker Connections Audio/Video Connections ........12 Connecting the DC-1 as a preamp ......13 Video Connections ..........14 Digital Audio Connections ........14 Recording a Digital Source Using the DC-1 D/A Converter ..........14 Digital Input Status Detection ........
  • 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

    More than just a surround processor, the DC-1 is a digital control center with state-of-the-art performance and flexibility. A superb line level preamp, the DC-1 provides 8 audio, 5 video (3 S-VHS), and 4 digital (2 coaxial, 2 optical) inputs. The video and digital inputs can be assigned to any of the audio inputs for custom configuration.
  • Page 9 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. The Music Surround mode is specifically designed to opti- mally play conventional stereo music through any system which includes side or side-located rear speakers.

  • Page 10: Unpacking And Inspection

    DC-1 will deliver the full potential of music and movies for years to come. After unpacking the DC-1 , save all packing materials in case you ever need Unpacking and to ship the unit. Thoroughly inspect the DC-1 and packing materials for Inspection signs of damage.

  • Page 11: Glossary Of Terms

    To understand the overall organization of the unit, it is helpful to define those few terms which are unique to the DC-1. Glossary of Terms Effect An effect is a configuration that determines how the DC-1 will process an input signal.

  • Page 12: Dc-1 Block Diagram

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

  • Page 13: Installation And Calibration

    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- ciated activity LED that lights mode. Turning the DC-1 off RECORD and ZONE 2 out- able effects.

  • Page 14: The Rear Panel

    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 ACCY Functions Press and hold ACCY while pressing DONE to activate a "You Are Here" mode 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 has a master power switch on the rear panel above the IEC standard AC power receptacle. This switch may be left ON continuously when the unit is in regular use. When the DC-1 will not be used for an extended period of time, or whenever you are connecting or disconnecting any cables to the unit, this switch should be turned OFF.

  • Page 18: Wiring Considerations

    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. If you want to do some tweaking, be...

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

    Note the use of Y-connectors to feed the DC-1 Record output to both the VCR and the tape deck. In this example, Y-connectors are also used to direct the VCR audio output to both the TV and VCR inputs on the DC-1 so that the VCR can be used as a TV tuner.

  • Page 20: Video Connections

    S-Video outputs. The reverse is not true — composite input signals will not be output as S-Video. You can assign any video source to any (or all) of the eight DC-1 inputs via the Input Configuration submenu of the Setup menu. This can be very useful in systems which use a VCR as the tuner for TV viewing, as the video feed from the VCR can be assigned to both the VCR and TV inputs.

  • Page 21: Digital Input Status Detection

    Whenever Emphasis is detected within the incoming digital audio channel status bits, de-emphasis is automatically applied. The DC-1 offers independent input selection and level control for the Main RECORD/ZONE 2 and Zone 2 outputs. Three different methods of control are described below.
  • Page 22 DC-1 is located) remains muted. To use the DC-1 in this manner, turn on the DC-1 by pressing the RECORD/ZONE2 key on the remote. The unit will power up with the System Mute and Effect Bypass activated.

  • Page 23: System Configuration

    TORY DEFAULTS RESTORED is diplayed, press DONE to return to normal operation. LCD Adjustment Depending on the location of the DC-1 in your room, you may need to adjust the front panel Liquid Crystal Display (LCD) for optimum viewing. To adjust this display, press the MENU or SELECT buttons on the Remote to enter the Main Menu.

  • Page 24: The Video On-Screen Display

    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. Adjustments to the on-screen display are made from the Display Adjust menu.

  • Page 25: System Setup

    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.
  • Page 26 Setup menu. operation whenever the input is selected. The default names are non- abbreviated versions of the corresponding labels on the DC-1 remote control and the front and rear panels. These names can be customized to more accurately reflect your system configuration.
  • Page 27 Remote Trigger Assignment This menu item assigns the status for the remote trigger voltage that appears on pin 5 of the Power Control DIN jack on the DC-1 rear panel. +12VDC is provided for controlling ancillary equipment or functions. This signal can be assigned as ENABLED or DISABLED for the selected input.

  • 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 Although you can also elect to bypass the crossover and run a full range output if your subwoofer has an internal crossover, it is generally best to use the crossover in the DC-1. Subwoofer Frequency Response NO mutes the subwoofer output and disables the Sub Bass Boost parameter.

  • Page 30: Setting Output Levels

    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 This control in the Output Levels menu allows you to select the volume at which the DC-1 will power on. You can choose from a range of -80 to +12dB, or elect to have the system power on at the level it was at when powered off...

  • 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

    Find a mono source, such as an announcer on FM radio or a mono film, and listen for a tightly focused center image of speech or singing. If the image is off-center, adjust the DC-1’s input balance controls. (The more centered the monaural image, the better Panorama will work.)
  • 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

    Second, consider locking the settings so that they cannot be inadvertently changed. The last item in the Setup menu allows you to lock the DC-1 settings, as well as to change the name displayed during power up. Locking Settings Locking the settings allows full operation of the unit but prohibits the ability to change effect parameters or setup values.

  • 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

    Effect name and parameter values. When first shipped, the DC-1 has a set of default values assigned to each Effect. These values have been determined to be generally suitable for initial listening.
  • Page 38 Selecting EFFECT ONLY allows you to listen to only the effects added by the Listening to only DC-1 to the currently loaded program. With this function selected, use the DC-1 Effect MENU to turn this function on or off.

  • Page 39: Panorama

    Dolby Stereo movies, bringing the surround track outward into the room. The location of the front speakers and the listening position are crucial to Panorama’s effectiveness and for best results your system and the DC-1 together should be set up and calibrated according to the procedure in Chapter 2.
  • 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...

  • 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)

    Music Logic provides a slight degree of steering for the front channels whereas Music Surround (available in the THX version of the DC-1) passes unprocessed left and right information directly to the front left and right speakers.
  • 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...

  • Page 48: Logic 7 (Thx)

    EFFECT LEVEL adjusts the loudness of all channels except for the center. Logic 7 (THX) Available only in DC-1’s equipped with THX processing, this film sound mode reproduces musical material with maximum separation at all times, whether or not directional material is being steered. In addition, Logic 7 uses intelligent steering to extract wide bandwidth stereo surround chan- nels.
  • 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...

  • 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...
  • Page 54 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. Check to make sure that the DC-1 rear panel power switch is ON. No audio Check input and output connections.

  • Page 55: Troubleshooting

    FCC rules and CE standards. If some interfering noise is noted, move AM loop and FM "T" type antennas away from the DC-1 and reorient them as necessary. Use shielded cable for FM and TV antenna feeds. Erratic recall of modes Severe power surges or sags can confuse the DC-1 memory.
  • Page 56 Note any settings you want to re-use before proceeding. Turn the DC-1 OFF with either the front panel switch or the remote. Turn the unit back ON and immediately press BYPASS. (Make sure you do not block the infrared receiver on the DC-1 front panel.) The on-screen display...

  • Page 57: Specifications

    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™),...

  • Page 58: Installation Worksheet

    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...
  • Page 59 Lexicon, Inc. 3 Oak Park Bedford, MA 01730 USA Tel 781-280-0300 Fax 781-280-0490 www.lexicon.com Lexicon Part #070-11276 Printed in the United States of America...

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