Owner's Manual DC-1 Digital Controller Base, THX® and Dolby Digital® Versions
Important Safety Instructions Save these instructions for later use. Follow all instructions and warnings marked on the unit. Always use with the correct line voltage. Refer to the manufacturer's operating instructions for power requirements. Be advised that different operating voltages may require the use of a different line cord and/or attachment plug. Do not install the unit in an unventilated rack, or directly above heat producing equipment such as power amplifiers.
Dansk Vigtig information om sikkerhed Suomi Tärkeitä turvallisuusohjeita Gem denne vejledning til senere brug. Säilytä nämä ohjeet tulevaa käyttöä varten. Følg alle anvisninger og advarsler på apparatet. Seuraa kaikkia yksikköön merkittyjä ohjeita ja varoituksia. Apparatet skal altid tilsluttes den korrekte spænding. Der henvises til brugsanvisningen, der indeholder specifikationer for strømforsyning.
Deutsch Wichtige Sicherheitsanweisungen Español Instrucciones importantes de seguridad Heben Sie sich diese Sicherheitsanweisungen auch für später auf. Befolgen Sie alle auf der Vorrichtung stehenden Anweisungen und Warnungen. Immer nur mit der richtigen Spannung verwenden! Die Gebrauchsanweisungen des Herstellers informieren Sie über die elektrischen Anforderungen. Vergessen Sie nicht daß bei verschiedenen Betriebsspannungen ggf.
Owner's Manual DC-1 Digital Controller Base, THX® and Dolby Digital® Versions
DC-1 Digital Controller Contents 1 Introduction to the DC-1 ............................................. 1 Introduction .................................................................... 1 Unpacking and Inspection ............................................. 5 Using the Documentation .............................................. 5 System Overview .......................................................... 6 Glossary of Terms ..................................................... 6 DC-1 Block Diagram ..
Lexicon Contents, cont'd. Setting Listener Position .......................................... 32 Surround Delay • Time Alignment (Dolby Digital version) • Center Delay (Base and THX versions) • A/V Sync Delay (Dolby Digital version) • Calibrate Panorama Customization .............................................................. 36 Locking Settings .......................................................... 36 Assign Custom Name ..............................................
DC-1 Digital Controller 1 Introduction Introduction to the DC-1 to the DC-1 Introduction 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.
Introduction to the DC-1 Lexicon The key to our perception of the acoustic space we inhabit lies in the lateral sound field – the sound which moves from side to side in the room. The two front speakers used in conventional two channel stereo do not adequately excite these lateral fields in a playback room. The speakers are too far forward, and the ambient information in the recording is often masked by the music itself.
DC-1 Digital Controller Introduction to the DC-1 The DC-1 also has the ability to create an acoustic environment which is not present on the original recording. Using the Nightclub, Concert Hall, Church and Cathedral effects, you can select the acoustics the digital processor will simulate. Each of these effects has many adjustments to allow you to generate just the right sound for a particular piece of music in your room.
Introduction to the DC-1 Lexicon Designed specifically to handle multichannel audio, AC-3 takes advantage of a psychoacoustic phenomenon known as auditory masking. It divides the audio spectrum of each channel into narrow frequency bands of different sizes optimized with respect to the frequency selectivity of human hearing. This makes it possible to sharply filter coding noise so that it is forced to stay very close in frequency to the frequency components of the audio signal being coded.
DC-1 Digital Controller Introduction to the DC-1 After unpacking the DC-1 , save all packing materials in case you ever need to ship the unit. Thoroughly inspect the DC-1 and packing materials for signs of damage. Remove the adhesive protective film from the DC-1 frontpanel lens and remote control. Report any shipment damage to the carrier at once; report equipment malfunction to your dealer.
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 transparent 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. Glossary of Terms Effect An effect is a configuration that determines how the DC-1 will process an input signal.
Introduction to the DC-1 DC-1 Digital Controller DC-1 Block Diagram 7
2 Installation and Installation and Calibration Calibration DC-1 Digital Controller Controls and Indicators The Front Panel 1. ON/OFF ON/OFF alternately puts the DC-1 into and out of standby mode. Turning the DC-1 off with this button (or with the remote) deactivates the unit while leaving power to the signal processing circuitry to keep it at optimum operating temperature. Turning the DC-1 on with this button (or the remote) will restore the previous operating state. 3.
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. 1. AUDIO INPUTS Eight stereo analog audio inputs are switched with corresponding video inputs and fed to the Monitor outputs.
Installation and Calibration DC-1 Digital Controller The Remote Control 1. OFF and ON* Separate OFF and ON buttons are provided for learning remotes, so that an automated key sequence does not require information regarding the current on/off status of the unit. OFF puts the unit into standby with audio muted, video blanked, the LCD and all LEDs, except for IR activity, turned off. The IR LED remains illuminated and the IR receiver remains active.
Installation and Calibration Remote Control ACCY Functions Lexicon Press and hold ACCY, then press DONE to activate a "You Are Here" mode which: • Disables mute • Sets volume to -30dB; sets Zone 2 volume to -20dB • Centers Balance controls • Loads the Pro Logic Effect • Selects the VCR1 input; does not affect the Rec/Zone 2 input • Activates On-Screen display with 2 second timeout • Sets Remote Trigger ON • Sets all tone controls to 0dB or OFF To assign an effect to the input buttons, the original assign
DC-1 Digital Controller Installation and Calibration Connection The DC-1 is a highly specialized signal processing computer and requires special care during installation to ensure optimum performance. Location Considerations The DC-1 may be installed on a shelf or in a standard 19" equipment rack, using optional rack-mounting hardware available from Lexicon. Observe the following precautions: • Select a dry, well-ventilated location out of direct sunlight.
Installation and Calibration Lexicon Wiring Considerations Audio/Video Cables There is controversy over the audible effects of different types of interconnects. 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.
DC-1 Digital Controller Installation and Calibration Connecting the DC-1 as a preamp 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 through a preamp). Since TAPE, TUNER and CD are audio only, the video output will default to the video signal fromVCR 1. This feature allows TV or other video source viewing while different audio is playing, but can be defeated in the Setup menu.
Installation and Calibration Lexicon Whenever possible, connect both analog and digital outputs of digital sources. This enables use of a digital input for the main zone, and the corresponding analog input for the Record/Zone 2 outputs. 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 also be used as a TV tuner.
DC-1 Digital Controller Installation and Calibration When using a 48kHz digital connection from a source (DSS, DAT), the following effects are available: THX Cinema Two Channel Logic 7 Music Logic Pro Logic TV Matrix Music Surround Note that current "AC-3 ready" laser disc and LD/DVD players do not output a single digital audio bitstream that incorporates the Dolby Digital (AC-3) data. Instead, the AC-3 data from laser discs is output on a separate RCA jack in Radio Frequency (RF) form.
Installation and Calibration RECORD/ZONE 2 Operation Lexicon The DC-1 is designed to be the control center of any system. As such, there are separate outputs for easy integration of external recording devices as well as additional “zones” in multi-room installations. The Record and Zone 2 outputs on the DC-1 are wired in parallel so that the input selection will always be the same for both. For example, if the CD input is selected for Record, the CD input is also output to Zone 2.
Installation and Calibration DC-1 Digital Controller As protection against feedback, the TAPE and VCR1 inputs are normally blocked from being used as sources for the Record and Zone 2 outputs. This default condition can be changed in the Input Configuration menu as follows. Use MENU ▲ and ▼ to select REC/ZONE 2, then press SELECT. The MENU ▲ and ▼ buttons will select ANALOG, DIGITAL, or BLOCKED as the state of the input.
Installation and Calibration Exclusive Zone 2 Control Lexicon The DC-1 can also be used as an exclusive Zone 2 controller, allowing remote use of the system while the local room(the room in which the DC-1 is located) remains muted. To use the DC-1 in this manner, turn on the DC-1 by pressing the RECORD/ZONE 2 key on the remote. The unit will power up with the System Mute and Effect Bypass activated.
Installation and Calibration DC-1 Digital Controller Although the DC-1 memory is cleared before it leaves the factory, it is good practice to reset the unit before programming it. The following procedure resets the unit to factory condition: System Configuration Turn the DC-1 OFF with either the front panel switch or the remote. Turn the unit back ON and immediately press and hold the BYPASS button on the remote. (Make sure you do not block the infrared receiver on the DC-1 front panel.
Installation and Calibration The Video On-Screen Display Lexicon In addition to the front-panel display, the DC-1 contains a character generator for a video overlay display on monitors. Since the on-screen display is capable of showing the full menu of options available at any point, calibration of the system is faster and easier if the DC-1 video output is connected to a video input on a video monitor. This display will also show any dynamic adjustments to controls such as volume, contrast, etc.
DC-1 Digital Controller 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. Installation and Calibration System Setup Select SETUP from the main menu to display the Setup menu. Use MENU ▲ and ▼ to step the cursor through the Setup menu selections. Once an item is highlighted, pressing SELECT will display a sub-menu for that item.
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 setting indicates the optimum input level value as determined by the unit.
Installation and Calibration DC-1 Digital Controller The DC-1 has the ability to load an effect whenever an input is chosen. For example, if you primarily listen to CD’s with the CONCERT HALL effect, the DC-1 can be set to load this effect when the CD input is chosen. (You can listen to any effect using the EFFECT button on the front panel or the remote control.) If you select USE LAST, the DC-1 will load the last effect used for the selected input.
Installation and Calibration Digital Audio Input Assignment NOTE: Some older laser discs do not contain digital audio tracks. You will not hear audio when playing these discs if you have selected a digital input as the V-DISC source. Lexicon The four DC-1 digital audio inputs include two coaxial (RCA) and two optical connectors (TOSLINK™). For maximum configuration flexibility, each of the four digital inputs can be assigned to any (or all) of the source selections.
Installation and Calibration DC-1 Digital Controller The Speaker Configuration menu allows a wide range of choices in speaker 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.
Installation and Calibration Lexicon Sides This menu sets the system for your particular side speaker configuration. Systems with side speakers should be designated as STANDARD (LARGE or SMALL) or DIPOLE (LARGE or SMALL). DIPOLE indicates a THX speaker configuration, and causes the unit to mute the rear outputs when either THX effect is used. When STANDARD SMALL or DIPOLE SMALL is highlighted, press SELECT to display and adjust the highpass filter for the side outputs. Choices are: OFF, 80, 100 or 120Hz.
DC-1 Digital Controller 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.
Installation and Calibration Lexicon 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 — get as close as you can. The system should be reasonably well balanced, although not actually calibrated for precise playback and level matching.
DC-1 Digital Controller Selecting LIMITER ADJUST in the Sub Peak Limiter menu invokes a calibration routine for setting the optimal peak level for your installation. Pressing SELECT routes low frequency calibration noise to the subwoofer output of the DC-1. A two-line display indicates the LIMITER LEVEL setting in dB on the top line with a bar at the bottom to indicate relative noise level. Press MENU ▲ and ▼ to adjust the noise level to the highest level that your equipment can reproduce without overload.
Installation and Calibration Setting Listener Position Surround Delay (Base and THX Versions) Surround Delay Settings Time Alignment (Dolby Digital version) Lexicon The Listener Position menu is used for setting the surround and center delays and calibrating the Panorama effect. Note that the Time Alignment parameter replaced the Surround Delay parameter in Base and THX versions of the DC-1. The Surround Delay parameter is described below.
Installation and Calibration DC-1 Digital Controller Once you have entered the distance to the nearest speaker, the DC-1 will automatically calculate the maximum distance it can handle. After the distance of the nearest speaker is entered, highlight TIME ALIGNMENT and press SELECT. A display will list all of the speakers, each with a default distance setting equal to your nearest speaker. Use SELECT and MENU ▲ and ▼ to highlight and enter actual distances for each speaker.
Installation and Calibration A/V Sync Delay Lexicon A/V Sync Delay compensates for the delay that occurs when a video enhancing processor, such as a line doubler, is being utilized with the DC-1. Most of these enhancers alter the original audio/video timing relationship by adding processing delay to the video signal as it is passed through. A/V Sync Delay applies a corresponding delay to the audio signal to restore the original audio/video timing relationship.
DC-1 Digital Controller Installation and Calibration To set the Speaker Angle, center yourself symmetrically between the two front speakers. Turn CAL NOISE on and select LEFT ONLY. The test signal should sound as though it is coming from off to your left side, well beyond the left speaker, with near-total silence in your right ear. Still facing forward, move your head from side to side until the effect is strongest.
Installation and Calibration Lexicon Customization After you have calibrated and customized the DC-1, there are two additional steps recommended to safeguard the settings. First, document your adjustments using the table found at the end of this manual. 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.
Installation and Calibration DC-1 Digital Controller The THX and Dolby Digital versions of the DC-1 provide 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. The Dolby Digital version also contains a Tilt parameter. Bass and Treble level controls are provided to compensate for inconsistencies in source material, rather than variations in room conditions.
Installation and Calibration Tilt (Dolby Digital version) Lexicon The Tilt parameter can be thought of as a straight line that pivots on a fulcrum at 1kHz to correct the overall tonal balance of source material. The range is -3.0dB to +3.0dB, referenced to the Treble level. This control, adjustable in 0.2dB increments, is useful on many older recordings, or when the desired tonal balance cannot be achieved using the Bass, Treble and Loudness controls.
DC-1 Digital Controller 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). Press the MENU ▲ and ▼ buttons to move through the displayed list. Press SELECT to activate a two-line display which allows you to use the ▲ and ▼ buttons to alter the selected parameter’s value.
DC-1 Effects Lexicon Restoring the original parameter values of an Effect The RESTORE PARAMETERS function allows you restore the currently selected Effect to its factory preset state. Naming your custom Effect EDIT EFFECT NAME allows you to assign a new name, of as many as 13 characters, to your Effect. With EDIT EFFECT NAME highlighted, press SELECT to display the current name with a cursor indicating which character position can be modified. SELECT moves the cursor to a new position.
DC-1Effects DC-1 Digital Controller Music Surround, available in the THX and Dolby Digital versions of the DC-1, is a surround effect developed specifically for music listening. It makes full use of additional loudspeakers placed at the center, sides and rear of the room. This effect passes unprocessed left and right information directly to the front left and right speakers.
DC-1 Effects Lexicon Pro Logic Pro Logic Parameters This Effect provides Dolby Pro Logic Surround decoding designed for any Dolby Surround encoded movies, music, or television programs. The Pro Logic effect is an industry standard. Lexicon's proprietary auto azimuth correction makes it an improvement over other versions. (Even more dramatic improvement has been implemented in more recent effects, such as Logic 7 or TV Matrix.
DC-1Effects DC-1 Digital Controller This Effect, available only in DC-1’s equipped with THX or Dolby Digital processing, provides Home THX Cinema surround decoding for any Dolby surround encoded movies, music or television programs. The effect is similar to Pro Logic, but includes the features of re-equalization, timbre matching and decorrelation. The surround channels are monaural, but can be decorrelated.
DC-1 Effects Logic 7 (THX and Dolby Digital versions) Lexicon Available only in the THX and Dolby Digital versions of the DC-1, 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 channels.
DC-1 Digital Controller DC-1Effects REAR DELAY OFFSET is an additional delay added to the rear channels. This delay increases the apparent size of the listening space by increasing the rear delay time. Feel free to experiment to find the setting that works best. RE-EQUALIZER equalizes the left, center, and right channel outputs to match the overall frequency balance of the original recording. Without this re-equalization, many films and some television programs will sound too bright.
DC-1 Effects Lexicon TV Matrix TV Matrix Parameters The TV Matrix effect provides surround effects for television viewing of monaural, stereo, and stereo synthesized programs. Parameter AUTO AZIMUTH FRONT STEERING REAR ROLLOFF DOLBY B NR RE-EQUALIZER SIDE ASSIGN SURROUND LEVEL SUBWOOFER LVL EFFECT LEVEL CUSTOM Initial Value Range ON FULL 8.2kHz OFF OFF SIDE +0dB 0dB +00dB ON/OFF 1/4, 1/2, Full, Off 453Hz-20.
DC-1 Digital Controller DC-1Effects SIDE ASSIGN determines whether the information fed to the side speakers is from the front, side or rear outputs. Availability of selections varies according to your speaker configuration. Choosing FRONT will give a much larger front sound stage. Choosing SIDE or REAR will provide a more enveloping surround field. SURROUND LEVEL controls the volume level of the side and rear speakers.
DC-1 Effects Mono Logic Mono Logic Parameters Lexicon 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. Parameter ROLLOFF ACADEMY FILTER MAIN LEVEL SUBWOOFER LVL EFFECT LEVEL CUSTOM Initial Value Range 3.3kHz ON 8 +0dB -04dB 453Hz to 20.0kHz ON/OFF 0-16 -5 to +5dB -30 to +05dB ROLLOFF regulates the treble cut in the side and rear channels.
DC-1Effects DC-1 Digital Controller 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.
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. In systems configured without rear speakers, the settings affect the side outputs.
DC-1Effects DC-1 Digital Controller The Nightclub Effect generates the appropriate early reflections for stereo simulation of many different intimate spaces, and sends the reflections to the front, side and rear speakers. Parameter HALL SIZE LIVENESS ROLLOFF SPEECH DETECT CENTER LEVEL SUBWOOFER LVL EFFECT LEVEL CUSTOM Initial Value Range 4 Meters 4 9.7kHz OFF 9 +0dB +02dB 4-17 Meters 0-6 453Hz-20.
DC-1 Effects Concert Hall Concert Hall Parameters Lexicon 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. Parameter HALL SIZE LIVENESS ROLLOFF SPEECH DETECT CENTER LEVEL SUBWOOFER LVL EFFECT LEVEL CUSTOM Initial Value Range 30 Meters 4 3.
DC-1Effects DC-1 Digital Controller The Church Effect uses a reverberation algorithm, which differs from 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.
DC-1 Effects Lexicon CENTER LEVEL adjusts the output level from the center speaker. SUBWOOFER LVL 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. EFFECT LEVEL adjusts the loudness of the Effect. Cathedral Cathedral Parameters The Cathedral Effect uses a reverberation algorithm which emphasizes rich, smooth reverberant decay in large spaces.
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 reverb is almost entirely attenuated. SPEECH DETECT is a real benefit to some popular music (where spoken voice, such as rap, occurs along with the music), stereo television and early stereo movies.
DC-1 Effects Lexicon SURROUND LEVEL controls the volume level of the side and rear speakers. Although we have selected a default value, the correct setting will vary with each recording, the room, and your personal taste. SIDE ROLLOFF provides a high frequency cutoff for the side speakers. The optimal setting for this control will vary widely with the source material. REAR ROLLOFF sets the cutoff frequency of a low pass filter in the rearchannel. Frequencies above this setting are attenuated.
DC-1Effects DC-1 Digital Controller The Party effect allows unprocessed stereo signals to be played over all speakers for background music or for maximum acoustical output of the system. Parameter HIGH PASS CENTER LEVEL SUBWOOFER LVL EFFECT LEVEL CUSTOM Initial Value Range 40Hz 15 +0dB +00dB OFF, 40-735Hz 0-15 -5 to +5dB -30 to +05dB Party Party Parameters HIGH PASS sets the level of a filter which removes low frequencies from the center, side, and rear outputs.
DC-1 Effects AC-3 Status Display (Dolby Digital version) Lexicon The following five effects are available only in the Dolby Digital version of the DC-1. Each of these effects provides an AC-3 Status Display in the parameter menu. This display contains the following information. MATRIX ENCODED: YES indicates a Dolby Digital input is matrix encoded; No indicates it is not.
DC-1Effects DC-1 Digital Controller This Effect, available only in DC-1’s equipped with Dolby Digital processing, enhances playback of Dolby Digital music recordings, or Dolby Digital film soundtracks with strong musical content. This effect contains many of the features found in 5.1 LOGIC 7, with settings that are more appropriate for music. Parameter Initial Value AC-3 STATUS (display only — not user adjustable) COMPRESSION Off RE-EQUALIZER Off SURROUND LEVEL 0dB REAR DLY OFFSET 0ms LFE MIX LEVEL +0.
DC-1 Effects Dolby Digital (Dolby Digital version) Dolby Digital Parameters Lexicon Available only in the Dolby Digital version of the DC-1, the Dolby Digital effect decodes Dolby AC-3 encoded soundtracks. Unlike analog Dolby surround decoding, Dolby Digital uses five discrete full-range channels and a sixth dedicated, Low Frequency Effect (LFE) channel. In this effect, any rear speakers present are connected in parallel with the side speakers. This is the basic Dolby AC-3 effect.
DC-1Effects DC-1 Digital Controller This Effect, available only in DC-1’s equipped with Dolby Digital processing, provides THX 5.1 Cinema enhancements for film soundtracks recorded in the Dolby Digital format. This processing compensates for the acoustical differences between large mixing theaters and the typically smaller home environment. In this effect the side and rear speakers are driven in parallel when you designate side speakers as STANDARD (LARGE or SMALL) in the Speaker Configuration menu.
DC-1 Effects 5.1 Logic 7 (Dolby Digital version) Lexicon 5.1 Logic 7 combines all the features of Dolby Digital AC-3 with enhancements by Lexicon and LucasFilm. This effect uses Logic 7 matrix technology to enhance the steering between the side speakers and the rear speakers, so sounds intended to come from behind the listener actually do come from behind. This effect also includes the adaptive decorrelation and re-equalizaer features of THX 5.1. 5.1 Logic 7 provides the ultimate in film reproduction.
DC-1 Digital Controller DC-1Effects SURROUND LEVEL controls the volume level of the side and rear speakers. Although we have selected a default value, the correct setting will vary with each recording, the room, and your personal taste. LFE MIX LEVEL allows separate level attenuation of the LFE channel, which is ultimately mixed to the subwoofer output.
DC-1 Effects 5.1 Two Channel (Dolby Digital version) 5.1 Two Channel Parameters Lexicon This Effect mixes Dolby Digital 5.1 information for two-channel playback. These soundtracks can be recorded onto two-channel formats, or played back through left and right front speakers. The mix is designed to play back with full surround when decoded through Logic 7. In mixing a film with very heavy use of the Low Frequency Effects Channel, it may be desirable to lower LFE MIX LEVEL.
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 4 Troubleshooting DC-1 Digital Controller Troubleshooting 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.
Troubleshooting Problem Lexicon Possible Cause and Solution Hum Finding and eliminating audio hum in a complex installation can be a very frustrating task. Often, the easiest way to identify the culprit(s) is to systematically eliminate devices from the audio chain. If Cable TV is connected to any component in the system, start by unplugging the Cable completely, preferably right at the wall jack. If this eliminates, or greatly reduces the hum, it is worth a call to your Cable company.
Troubleshooting DC-1 Digital Controller Other than occasional replacement of the batteries in the remote control units, the DC-1 requires minimal maintenance. Use a soft, lint-free cloth slightly dampened with warm water and a mild detergent to clean the exterior surfaces of the unit. Do not use alcohol, benzene or acetone-based cleaners or any strong commercial cleaners. Routine Maintenance Avoid using any abrasive materials such as steel wool or metal polish.
Specifications 5 Specifications DC-1 Digital Controller Specifications Inputs: Audio: 8 stereo (RCA) pairs Minimum Input Level: 500 mVrms for maximum output 200 mVrms for Dolby level (Input Gain=0dB) Input Impedance: 100 kΩ in parallel with 150pF Video: 5 composite (RCA), 3 S-video, NTSC, PAL, SECAM compatible Input Level and Impedance: 1Vpp, 75Ω Digital: 4: 2 coaxial (RCA), 2 optical (TOSLINK™), conforms to S/PDIF standard Outputs: Audio: 8 outputs:Left, Center,Right, L&R Sides, L&R Rears, Subwoofer
Installation Worksheet Model/Serial #________/____________ Installed by________________________________Phone____________________Date______________ Inputs VCR1 Gain _______ ■ Analog Rec/Zone2: VCR2 Gain _______ Gain _______ TV Gain _______ AUX Gain _______ CD Gain _______ TUNER Gain _______ TAPE Gain _______ Trigger: ■ enabled ■ Digital ■ Blocked Trigger: ■ Digital ■ Blocked Trigger: ■ Digital ■ Blocked Trigger: ■ Digital ■ Blocked Trigger: ■ Digital ■ Blocked Trigger: ■ Dig
Lexicon, Inc. 3 Oak Park, Bedford MA 01730-1441 USA Telephone: 781-280-0300 Fax: 781-280-0490 www.lexicon.
