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Lexicon DC-1 User's Manual

1. 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 At the 1 2 and 1 4 settings steering is reduced to accommodate the wide range of television program ming Selecting OFF steers the signal to both the left and right channels Music Logic Music Logic Parameters 55 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 rear channel Frequencies above this setting are attenuated This control 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 out puts 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 desirab
2. Parameter MID RT BASS RT HALL SIZE PRE DELAY 1 14 17 04 sec 0 7 1 0 1 25xMID RT 20 38 Meters 0 88ms 453Hz 20 0kHz ON OFF ROLLOFF SPEECH DETECT ON CENTER LEVEL 7 0 15 5 to 5dB 30 to 05dB SUBWOOFER LVL EFFECT LEVEL CUSTOM 0dB 01dB MID RT midrange reverberation time is the time required for midrange sounds to decay 60dB in level BASS RT low frequency reverberation time depends on MID RT and is expressed as a multiplier BASS RT should be set to 1 0 x MID RT for a more natural effect in smaller spaces HALL SIZE allows you to select hall sizes of lengths ranging from 20 38 meters in increments of 2 meters PRE DELAY increases the delay between the direct sound and the onset of reverberation Because some pre delay is inherent in the program material a value of 0 is usually a good starting point Increasing the pre delay value will make the hall sound larger ROLLOFF mimics the absorption of the air in the hall and typically should begin with a low frequency when simulating larger spaces SPEECH DETECT activates a circuit that distinguishes monaural speech from other inputs Essentially this control turns down the effect to make speech clearer Whenever stereo signals are present the right and left input channels are used independently as inputs to the ambience synthesis 54 DC 1 Digital Controller DC lEffects If there is a strong monaural speaking v
3. operation press and hold ACCY then press SELECT The message NORMAL IR REMOTE MODE ENABLED will be displayed to confirm that normal operation has been restored NOTE Removing the block from any input which has both an input and output attached may cause damaging feedback Zone 2 Remote Control Installation and Calibration Lexicon Exclusive Zone 2 Control 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 The remote will default to Zone 2 IR Remote mode as described above with Volume Mute Input Selection and L R Balance controlling only the Record and Zone 2 outputs To return to normal operation simply press OFF then ON Digital audio inputs can be selected for the Record Zone 2 outputs under the following conditions The digital input must be assigned to an input via the Setup Input Configuration menu The input must have REC ZONE 2 set to DIGITAL TAPE and VCRI are normally BLOCKED but can be changed in the Input Configuration menu The input must be selected for Main outputs 20 DC 1 Digital Controller Installation and Calibration Although the DC 1 memory is cleared before it
4. An IR input jack is available on the rear panel for a remote mounted IR receiver The green activity LED remains illuminated when the unit is placed in Standby 8 Display A 2x20 backlit amber LCD displays the result of user action and the current status 9 VOLUME A position independent ro tary encoder provides volume adjustment of all outputs ex cept for RECORD or ZONE2 Screen displays show a vol ume bar and level in dB 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 34029 wre PUN CD Ee ag NG NONG EM ALD LODO ES 1 AUDIO INPUTS Eight stereo analog audio in puts are switched with corre sponding video inputs and fed to the Monitor outputs Inputs are nominally labeled as origi nating from an audio tape player tuner CD player an unspecified auxiliary source a TV tuner a Laser or Video Disc player asecondary and a primary VCR 2 ZONE2 and RECORD Each pair of stereo audio outputs supplies the same signal according to the record input selection ZONE2 sig nal levels can be controlled independently for use with a second set of amplifiers and speakers in another room ZONE2 can also be used as asecond record output When the output for ZONE2 is setto OdB
5. Hum Interference with Radio or TV Erratic recall of modes If all else fails 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 A quick fix assuming your cable is round 75Q wire is to attach a 75 3002 transformer to the end then attach a 300 75Q transformer to that so that the end is back to a round 75Q wire There are commercially available antenna lead isolators which may provide additional insula tion from electrical surges The DC 1 does generate minimal amounts of RF energy and is in compliance with 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 Severe power surges or sags can confuse the DC 1 memory To correct or if you simply want to start over restore the factory defaults with the procedure described at the end of this section Turn off all amplifiers Turn the master power switch on the DC 1rear panel OFF wait 10 seconds then turn it ON again This causes the unit to run a diagnostic self test
6. NOTE If any of the amplifiers in your system have gain volume controls their level settings will af fect the balance of the DC 1 out puts Generally the gain controls of these amps should be set at or near maximum You should record the values of these controls for later reference 29 Installation and Calibration Lexicon Subwoofer Peak Limiter Dolby Digital version 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 With the system volume at 0dB the internal noise source should be at the same level at which film dialog sounds comfortable Dolby AC 3 encoded soundtracks can produce low frequency peaks that are 15dB higher than those in matrixed Dolby Surround decoding These higher levels may be troublesome in the home listening environment either because they disturb non listeners in nearby rooms or because of the inability of the subwoofer and its associated amplifier to reproduce these levels without clipping The Dolby Digital version of the DC 1 provides a Subwoofer Peak Limiter that prevents the subwoofer signal level
7. connected The DC 1 processes the digital input signal for the main zone and simultaneously routes the analog input signal to the Record and Zone 2 outputs Since no D A converters are necessary for the analog input signal the functionality in the Main zone is not compromised DIGITAL routes the digital signal assigned to the input to the DC 1 s 20 bit Digital to Analog D A converters After conversion the signal is sent to the Record and Zone 2 outputs As this setup bypasses the D A convert ers in the source component and utilizes the 20 bit D A converters in the DC 1 sound quality can be dramatically improved when recording or listening in Zone 2 This setup automatically engages Effect Bypass in the main zone BLOCKED simply blocks the input from being sent to the Record and Zone 2 outputs This prevents feedback from occurring with devices that have both an input and output attached to the DC 1 Tape deck VCR etc The remote control can be placed into an exclusive Record Zone 2 control mode during normal operation by holding down ACCY and pressing RECORD ZONE 2 This will display the message ZONE 2 IR REMOTE MODE ENABLED In this mode the Volume Mute Input selection and L R Balance controls will directly control the Zone 2 outputs with no effect on the Main outputs Pressing any other keys will display the message ZONE 2 MODE ENABLED KEY INVALID To exit Zone 2 Remote mode and return the remote control to normal
8. of sound quality Introduction to the DC 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 By reducing or eliminating coding noise wher ever there are no audio signals to mask it the sound quality of the original signal can be subjectively preserved The result is multichannel sound that is subjectively equal to 2 channel digital recordings yet can be stored and transmitted efficiently AC 3 can process at least 20 bit dynamic range digital audio signals over a frequency range from 20Hz to 20kHz The bass effects channel covers 20 to 120Hz Data rates range from 32kb for a single mono channel to as high as 640 kb Dolby Digital source material has been released to date on many laser discs These discs while able to deliver two channels of PCM digital audio are not capable of storing an additional six channels of digital audio information The AC 3 bitstream is therefore converted into a frequency modulated signal referred to as the AC 3 RE signal and stored on the right channel analog track of AC 3 encoded la
9. unity gain it has the same output level as RECORD RECORD can be expanded to two outputs us ing standard Y connectors Both outputs are muted in standby 0 0 0 0 O O 0 us 3 MAIN OUTPUTS Three stereo amplifier out puts are provided for front side and rear speakers Single monaural outputs are provided for the center speaker and the subwoofer The audio outputs are muted in standby 4 S PDIF INPUTS Two coaxial RCA connectors and two optical connectors are provided for digital audio in S PDIF format ata 44 1kHz 1000 ppm sample rate The Dolby Digital version also accepts 48kHz signals 5 REMOTES IR IN PWR CTL The IR input is a miniature phone jack connector for in put of modulated IR receiver data from an externally mounted IR LED receiver Data is retransmitted by an IR LED mounted near the front panel IR receiver MAWO PUTS sean so CENTEA HAW olojo n ewc The Power Control port is a 5 Pin DIN connector Pins 1 and 2 are ground pin 3 is high when unit is on low in standby or Off High is indi cated by either 12VDC or 5VDC selectable via an in ternal jumper Factory con figuration is 12V Pin 5can be enabled high or disabled low for specific input selec tions in the Setup menu See pinout diagram above 6 VIDEO INPUTS Five video input sources are provided VCR1 VCR2 and V DISC have both compos ite and S video capabilities S video is selected in pref e
10. 1 channels to be downmixed to two channels while preserving the encoded surround information This version can then be played back through a surround effect such as Pro Logic or Logic 7 The DC 1 also provides effects for expanding monaural sources Mono Logic general TV viewing TV Matrix background music Party and of course Two Channel stereo playback Designed with an eye toward the future the DC 1 s open architecture allows upgrades via simple modifications which can be performed by any Lexicon dealer With its blend of performance and flexibility the DC 1 will deliver the full potential of music and movies for years to come About Dolby Digital AC 3 encoding Because multichannel recordings are made up of so much information new ways of storing and transmitting it have had to be created To this end Dolby Laboratories developed AC 3 a digital audio coding technique on which the Dolby Digital surround format is based On a typical compact disc 16 bit samples are taken 44 100 times per second for each channel which allows as much as 74 minutes of 2 channel audio on a single CD However if a digital recording consists of 6 channels up to two hours in length storage or transmission becomes impractical due to the immense amount of data Because of this new forms of digital audio coding sometimes referred to as perceptual coding have been developed to allow the use of lower data rates with a minimum of perceived degradation
11. ON Check input and output connections They may be reversed relative to the IN and OUT jacks of your receiver amplifier preamp or other source Check batteries to be certain that they are inserted correctly with proper polarity Make sure that the infrared sensor on the DC 1 front panel is not obstructed See If all else fails on the following page Make sure that signal is coming into the DC 1 Increase VOLUME using the remote control and check Front Back and Left Right BALANCE Check the DC 1 MUTE controls to make sure they are not engaged Check all other equipment settings and connections and verify that the amplifiers being fed by the DC 1 are operational Remember that the DC 1 mutes the output to any speakers which are not configured in the Setup menu If speakers are added to or removed from your system the Speaker Configuration menu must be altered accordingly Check to see if your HiFi VCR has dropped out of tracking readjust Your VCR Stereo Mono L R switch may be in the wrong position set it to Stereo When no center channel is used CENTER must be configured for NONE in the Setup Speaker Configuration menu The center channel amp may be connected to the subwoofer jack on the DC 1 rear panel Reconnect to Center Output jack The meters will only appear when adjusting the Gain parameter of a selected active input 65 Troubleshooting Lexicon Problem Possible Cause and Solution
12. bass level EFFECT LEVEL adjusts the loudness of the side and rear speakers When there are no side speakers it adjusts the amount of ambient signal mixed into the main loudspeakers Nightclub Nightclub Parameters 51 DC 1 Effects Lexicon Concert Hall Concert Hall Parameters 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 Initial Value HALL SIZE 30 Meters 20 30 Meters LIVENESS 4 0 6 ROLLOFF 3 3kHz 453Hz 20 0kHz ON OFF SPEECH DETECT ON CENTER LEVEL 8 0 15 SUBWOOFER LVL EFFECT LEVEL CUSTOM 0dB 01dB 5 to 5dB 30 to 05dB HALL SIZE allows you to select room sizes of lengths ranging from 20 30 meters in increments of 4 meters LIVENESS adjusts the amount of recirculation within the effect Higher values mimic more reflective surfaces in the simulated space and increase the amount of time it takes the sound to decay At very high values the decay is audibly less smooth than in the Church and Cathedral Effects which are more effective at simulating very live spaces ROLLOFF mimics the absorption of the air in the hall and typically should begin with a low frequency to simulate large spaces SPEECH DETECT activates a circuit that dist
13. distracting instrumental overtones or other sounds behind you In systems configured without rear speakers the settings affect the side out puts 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 side and rear speakers When there are no side speakers it adjusts the amount of ambient signal mixed into the main loudspeakers Music Surround THX and Dolby Digital versions Music Surround Parameters 41 DC 1 Effects Lexicon Pro Logic 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 Pro Logic Parameters Parameter Initial Value AUTO AZIMUTH ON OFF DIALOG ENHANCE 0 0dB 3 0dB 6 0dB SUBWOOFER LVL 5 to 5dB EFFECT LEVEL 30 to 05dB CUSTOM AUTO AZIMUTH is short for auto azimuth error correction automatic input balance Auto Azimuth should be set to ON for films and OFF for music When ON special patented algorithms continually monitor the input signal and adjust b
14. from exceeding a preset value The limiter is factory preset to a level of 25dB This setting can be changed within the limiter s operating range of 5dB to 35dB with 5dB providing maximum limiting To turn off the limiter or to change its setting select the SUB PK LIMITER parameter in the Output Levels menu If you want to turn the limiter off first turn the system volume down in order to prevent the subwoofer from overloading Press MENU Y to select LIMITER then press SELECT Press MENU W to select OFF Press DONE twice to return to the Output Levels menu While readjusting the system volume back to a comfortable listening level check to be sure the subwoofer or its amplifier is not overloading on passages with low frequency effects 30 DC 1 Digital Controller Installation and Calibration 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 A and W to adjust the noise level to the highest level that your equipment can reproduce without overload Be sure the limiter is set to ON before exiting Press DONE to exit and automatically set the limiter to the level you have selected This menu allo
15. 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 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 Although we have selected a default value the correct setting will vary with each recording the room and your personal taste Raising the level will provide a more enveloping surround field 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 all channels except for the center THX versions of the DC 1 contained a version of the LOGIC 7 effect with the menu items described below DOLBY B NR is used in Pro Logic and THX effects for the surround channels according to Dolby specifications B
16. leaves the factory it is good 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 and hold the BYPASS button on the remote Make sure you do not block the infrared receiver on the DC 1 front panel The display will read FACTORY PRESETS MENU EXIT RESTORE DEFAULTS Use MENU A or Y to highlight RESTORE DEFAULTS then press SELECT This will clear and reload all preset effects and all factory settings of Volume Balance Contrast Configuration etc When the message FAC TORY DEFAULTS RESTORED is displayed press DONE to return to normal operation Depending on the location of the DC 1 in your room you may need to adjust the front panel display for optimum viewing To adjust this display press the MENU A Y or SELECT buttons on the Remote to enter the Main Menu Press MENU W twice to select DISPLAY ADJUST Press SELECT to highlight the Display Adjust Menu Press MENU W to select FRONT PANEL DISPLAY DISPLAY ADJUST MENU FRONT PANEL DISPLAY To adjust contrast use SELECT to highlight CONTRAST ADJUSTMENT and MENU A or Y to set the contrast of the display to its maximum as seen from your listening position Press DONE twice to return to the main menu AA MA AST with MESES ak or If you want to turn the front panel display off use SELECT to highlight
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18. the settings affect the side out puts CENTER LEVEL adjusts the output level from the center speaker BASS CONTENT allows you to modify the bass content for Mono Stereo or Binaural recordings The BINAURAL setting turns the rear level parameter off and activates special low frequency compensation This feature is offered specifically for true binaural recordings made with a dummy head 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 side and rear speakers When there are no side speakers it adjusts the amount of ambient signal mixed into the main loudspeakers 50 DC 1 Digital Controller DC lEffects 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 Initial Value Range HALL SIZE 4 Meters 4 17 Meters LIVENESS 4 0 6 ROLLOFF 453Hz 20 0kHz SPEECH DETECT ON OFF CENTER LEVEL 0 15 SUBWOOFER LVL 5 to 5dB EFFECT LEVEL 30 to 05dB CUSTOM HALL SIZE allows you to select room sizes of lengths ranging from 4 17 meters LIVENESS adjusts the amount of recirculation within the effect Higher values mimic more reflective surfaces in the simulated space and i
19. the sum L R has correspondingly less Negative settings of LOW FREQ WIDTH can com pensate for recordings with too much of this property This control can add needed spaciousness and warmth to classical recordings made with coin cident or near coincident microphones REAR LEVEL adjusts the loudness of the signals sent to the rear channels This control should be set so that the rear is audible without calling attention to itself Numerical values and screen graphics are displayed during adjustment In systems configured without rear speakers the settings affect the level of the side outputs Panorama Panorama Parameters 49 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 REAR DELAY adjusts the amount of time between the appearance of a signal in the front channels and its emergence from the rear Generally the correct delay is about 16 milliseconds but the setting depends on speaker set up and source material In general the delay should be low enough so that the rear sound does not become identifiable as a distinct source In systems configured without rear speakers
20. trols change the level bal ance between the front Left Center Right and rear L amp R Side L amp R Rear outputs Left and Right controls change the level balance be tween the left and right Front Side and Rear outputs In standby pressing turns the unit on OM VOLUME 7 Input Selection Individual buttons select from 8 inputs and activate a corre sponding green LED on the front panel Depending on the Setup configuration selection may also load a new effect The Remote Control 8 RECORD ZONE 2 Selects and deselects the current input source for RECORD and ZONE 2 out puts When the REC ZONE 2 function is engaged redLEDs are lit at the front panel REC ZONE 2 button and at the selected source input button To modify the ZONE 2 output without affecting other output levels press and hold RECORD ZONE 2 then ad just VOLUME Press MUTE while holding down RECORD ZONE 2 to fully attenuate the ZONE 2 outputs The ZONE 2 mute status will be indicated by a screen message The attenu ation level of the ZONE 2 output mute is not user ad justable Repeat to cancel MUTE 9 MENU SELECT A V and DONE Allow access to and adjust ment of all displayed menu items Volume Bypass Bal ance and Mute functions re main active in menu mode MENU A and Y step a dis play cursor through listed menu items SELECT dis plays submenus or chooses a menu item for adjustment The A and V buttons alter the
21. 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 and hold BYPASS on the remote Make sure you do not block the infrared receiver on the DC 1 front panel The on screen display will read FACTORY PRESETS MENU EXIT RESTORE DEFAULTS If you want to resume normal operation without restoring all defaults this is your last chance Use MENU Aor Y to highlight EXIT then press SELECT To restore defaults use MENU A or Y to highlight RESTORE DEFAULTS then press SELECT This will clear and reload all preset effects and all factory settings of Volume Balance Contrast Configuration etc When the message FACTORY DEFAULTS RESTORED is diplayed press DONE to return to normal operation All of the adjustable parameters in the 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 AND MODIFICATIONS MAY RENDER THE UNIT UNSERVICEABLE Routine Maintenance Restoring Defaults 67 Specifications Inputs Outputs D A Conversion Frequency Response THD Noise Dynamic Range Signal to Noise Ratio Power Requirements Dimensions Weight Environment Remote Controls Sp
22. C 1 Effect The RESTORE PARAMETERS function allows you restore the currently selected Effect to its factory preset state 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 Pressing SELECT in response to the displayed query will restore all of the factory preset values to the 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 MENU A and W scroll through the available character set Press DONE to save the new name RESTORE EFFECT NAME allows you to restore the original factory name of an Effect without changing any of your modified parameter settings When you select this function the message PRESS SELECT TO RESTORE EFFECT NAME allows you to reconsider erasing your custom name If you don t want to erase your version press DONE to exit the menu Pressing SELECT in response to the displayed query will restore the factory preset name Selecting EFFECT ONLY allows you to listen to only the effects added by the DC 1 to the currently loaded program With this function selected use MENU A and W to turn this function on or off 40 DC 1 Digital Controller DC lEffects Music Surro
23. C ZONE 2 until the LEDs turn off For Example VCR2 is selected for the Main output and its front panel green LED is lit Pressing and holding down the remote control or front panel REC ZONE 2 button will light the red LED above the front panel REC ZONE 2 button as well as the red LED above the currently selected input VCR2 You have now assigned VCR2 to the Record Zone 2 outputs In this state new input selections will not affect the Record Zone 2 outputs Now suppose you want to change the Record Zone 2 assignment to the CD input To do this press CD and press and hold REC ZONE 2 until the red front panel LEDs turn off You have now cleared the previous Record Zone 2 assignment To assign CD to the Record Zone 2 outputs press and hold REC ZONE 2 again The red LED above the front panel REC ZONE 2 button as well as the red LED above the CD input will light DC 1 Digital Controller Installation and Calibration 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 A and Y to select REC ZONE 2 then press SELECT The MENU A and Y buttons will select ANALOG DIGITAL or BLOCKED as the state of the input ANALOG allows maximum flexibility by utilizing both the digital and analog connections of a digital source component provided both are
24. CREEN DISPLAY This menu allows you to choose the position and duration of items dis played on screen during normal operation as well as the options of color or black and white display and conformance to local broadcast format Adjusting the position allows you to move the DC 1 display items to a location where they will not interfere with any other video overlays your system may generate The STATUS option allows you to choose to have the on screen display always off always on or on for a two second duration Note that if you choose to have the display time out this will not affect the display of the main menu Note also that parameter changes will still be performed when you make adjustments with MENU A or Y even if the display is inactive If you choose ALWAYS OFF you will not be able to use the video overlay and even setup will have to be done using only the front panel display COLOR allows you to have the on screen display presented in mono chrome or color FORMAT allows you to select NTSC PAL or SECAM formats Note that SECAM format is available only in monochrome Press DONE twice to return to the main menu 22 DC 1 Digital Controller Installation and Calibration 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 men
25. Cables lt Speaker Connections Audio Video Connections ocoococococcncnnncnonancnanananononos 14 Connecting the DC 1 as a preamp 15 Video CONNECTIONS sosssossrssssrsesrrsssrsr keke 16 Digital Audio Connections EEEE 16 AC 3 Ready Laser Disc and LD DVD Players Recording a Digital Source Using the DC 1 DWA CONVENED ter sar Gel k ml keke kas lk nan AROR ARN AIRES 17 Digital Input Status Detection 17 RECORD ZONE 2 Operation n eeren 18 Zone 2 Remote Control lt Exclusive Zone 2 Control System Configuration s nssessssssessrerrssrrssrrrsnrrnnrr rann rn nr nn nn on 21 Display AdjUStmMent ssssssssrsssssssrerssssrnssnnr nns nr rn nn nn na 21 The Video On Screen Display 22 System Setup anane aaa anana nana anana anana 23 Input Configuration Input Gain Input Level Meters lt Input Name Restore Input Name Input Effect Assignment Digital Audio Input Assignment Video Input Assignment lt Record Zone 2 Output Blocking Remote Trigger Assignment Setting the Speaker Configuration 27 Front L R Center Sides lt Rears Subwoofer Output Setting Output Levels oooocconocccccccconcncnccananncnncnnnnnos 29 Subwoofer Peak Limiter Dolby Digital version Mute Level lt Power On Volume Zone 2 Volume Contents Lexicon Contents cont d Setting Listener P
26. Digital version 58 5 1 Music Dolby Digital version 59 Dolby Digital Dolby Digital version 60 THX 5 1 Dolby Digital version 61 5 1 Logic 7 Dolby Digital version 62 5 1 Two Channel Dolby Digital version 64 Troubleshooting sssssssssssssssssnsssnssnnnnnnssnnnsnssnnn nn nan 65 Specifications s ss sssssssasnrannsrrnn rann nr rann nana narran 69 Installation Documentation Introduction to the DC More than just a surround processor the DC 1 isa 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 The digital inputs are processed through true 20 bit D A converters providing a level of performance not found in most stand alone converters Built in digital crossovers make it possible to tailor the output to match any speakers in a system There is also a second set of pre outs with independent volume and source selection to accommo date music in a separate zone A great deal of effort went into designing an instrument which would be flexible enough to satisfy the most critical listeners and yet be simple to operate Es
27. HALL CONCERT HALL USE LAST CHURCH CHURCH CHURCH USE LAST V DISC is the only input which has an AC 3 effect assigned as a factory default The DC 1 remote control can be set up for direct access of as many as eight effects To assign these first press the EFFECT button on the remote to scroll to the effect you want to assign Hold down the ACCY button on the remote and press any one of the eight input buttons The display will confirm your selection EFFECT ASSIGNED TO ACCY INPUT KEY To directly access this effect regardless of input simply hold down the ACCY button and press the corresponding input button To clear an effect from an INPUT button press and hold ACCY Press BYPASS then press the appropriate input button The display will show EFFECT ASSIGNMENT CLEARED Input Effect Assignment 25 Installation and Calibration Lexicon 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 Video Input Assignment NOTE S Video input signals will be output on both the composite and S Video jacks However if you are only connecting to the monitor via the S Video output composite video input sources will not be dis played Record Zone2 Output Blocking Remote Trigger Assignment E Trigger The four DC 1 digital audio inputs incl
28. Hz REAR DELAY OFFSET 0 20ms ON OFF Front Side Front Rear 5 to 5dB 5 to 5dB 30 to 05dB ON OFF RE EQUALIZER SIDE ASSIGN SURROUND LEVEL SUBWOOFER LVL EFFECT LEVEL Dependent on speaker configuration AUTO AZIMUTH is short for auto azimuth error correction automatic input balance Auto Azimuth should be set to ON for films and OFF for music When ON special patented algorithms continually monitor the input signal and adjust both the relative level and time offset of the two channels to keep the dialog properly centered and special effects properly localized This automatic feature is the reason the unit does not need an input balance control for Dolby Surround decoding DIALOG ENHANCE boosts dialog in the center channel By targeting specific frequencies it boosts only dialog without raising the entire center channel level which would alter the output balance achieved during calibration REAR ROLLOFF sets the cutoff frequency of a low pass filter in the rear channel Frequencies above this setting are attenuated This control 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 out puts 44 DC 1 Digital Controller DC lEffects REAR DELAY OFFSET is an additional delay added to the rear channels This delay
29. LECT TO RE STORE INPUT NAME Pressing SELECT again restores the name and exits to the Input Configuration menu 24 DC 1 Digital Controller Installation and Calibration 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 Any effect can be assigned to any or all of the eight inputs The Dolby Digital version of the DC 1 will automatically switch to an AC 3 effect whenever AC 3 encoded material is detected at the input This allows one input to be used for different formats For example in the factory default state the V DISC input will automatically load the THX 5 1 effect when an AC 3 signal is present and the THX CINEMA effect when a non AC 3 signal is present The default selections for input effect assignment are shown below for all three versions of the DC 1 Base THX Dolby Digital Effect Effect non AC 3 Effect AC 3 Effect PRO LOGIC THX CINEMA THX CINEMA USE LAST PRO LOGIC PRO LOGIC PRO LOGIC USE LAST PRO LOGIC THX CINEMA THX CINEMA THX 5 1 TV MATRIX TV MATRIX TV MATRIX USE LAST PARTY PARTY PARTY USE LAST MUSIC LOGIC MUSIC SURROUND MUSIC SURROUND USE LAST NIGHTCLUB CONCERT
30. OR DEMONSTRATION with the word DEMONSTRATION scrolled in from right to left or you can replace the word DEMONSTRATION with a custom name of as many as 20 characters To assign a new name use MENU A and Y to highlight CUSTOM NAME Press SELECT and press MENUA to turn this function ON then press DONE You will return to the Lock Settings menu with ASSIGN CUSTOM NAME highlighted Pressing SELECT will display the current name with a cursor indicating which character position can be modified Use MENU A and Y to select a new character Use SELECT to move the cursor to a new position Press DONE to save the new name The DC 1 is designed to automatically detect and decode Dolby Digital and PCM stereo digital bitstreams This auto detection feature can be manually defeated in order for example to play Dolby Digital bitstreams from a DAT player by changing the Audio Bit setting from AUTOMATIC to AUDIO or NON AUDIO To play Dolby Digital data from a DAT set this control to NON AUDIO 36 DC 1 Digital Controller Installation and Calibration 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 EQUALIZATION MENU Adest wihi MENU dk r Y Bass and Treble level controls are provided to compensate for inco
31. Owners Manual DC 1 Digital Controller Base THX and Dolby Digital Versions lexicon 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 Observe the maximum ambient operating temperature listed in the product specification Slots and opening on the case are provided for ventilation to ensure reliable operation and prevent it from overheating these openings must not be blocked or covered Never push objects of any kind through any of the ventilation slots Never spill a liquid of any kind on the unit Never attach audio power amplifier outputs directly to any of the unit s connectors To prevent shock or fire hazard do not expose the unit to rain or moisture or operate it where it will be exposed to water Do not attempt to operate the unit if it has been dropped damaged exposed to liquids or if it exhibits a distinct change in performance indicating the need for service This unit should only be opened by qualified service personnel Removing covers will expose you to hazardous voltages This triangle which a
32. SIDE outputs Installation and Calibration Lexicon Video Connections Digital Audio Connections 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 The DC 1 has five composite video inputs three of which also support S Video Connection to an S Video input will override the composite signal connected via the RCA type connector Note that an S Video input will be output on both the composite and 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 The VCR s audio signals can be fed to both inputs with Y connectors Do not use Y connectors on video signals This allows the audio and video signals from the VCR to be used for both TV and VCR viewing You can also assign any video source to audio
33. STATUS then use MENU A or W to select OFF Press DONE twice to return to the main menu System Configuration Display Adjustment MAIN MENU 21 Installation and Calibration Lexicon The Video On Screen Display MAIN MENU DISPLAY Video Input Selection and the On Screen Display When using the Video Monitor output with the On Screen Dis play the DC 1 automatically puts up a blue or grey background when no video signal is present Occasionally an incoming video signal may be so weak that it is recognized as essentially no sig nal triggering the background overlay If this occurs simply reselect the input In addition to the front panel display the DC 1 contains a character genera tor 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 calibra tion 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 Adjustments to the on screen display are made from the Display Adjust menu To display this menu press the MENU A Y or SELECT buttons on the Remote to enter the Main Menu Press MENU W twice to select DISPLAY ADJUST Press SELECT to enter the Display Adjust menu Press SELECT to open the On Screen Display menu Adust wih MENU amp r f aes ES ON S
34. a trav s de las ranuras de ventilaci n y nunca deje caer ning n l quido sobre la unidad Nuncaconecte ning n tipo de salida de amplificadores de sonido directamente a los conectores de la unidad Para prevenir descargas el ctricas o incendios mantengala unidad alejada de la lluvia humedad o cualquier lugar en el que pueda entrar en contacto con agua No trate de hacer funcionar la unidad si se ha ca do est da ada ha entrado en contacto con l quidos o si nota cualquier cambio brusco en su funcionamiento que indique la necesidad de hacerle un servicio de mantenimiento Esta unidad deber ser abierta nicamente por personal calificado Si usted quita las coberturas se expondr a voltajes peligrosos Este tri ngulo que aparece en su componente le advierte sobre la existencia dentro del chasis de voltajes peligrosos sin aislantes voltajes que son lo suficientemente grandes como para causar electrocuci n Este tri ngulo que aparece en su componente lo alerta sobre las instrucciones de operaci n y mantenimiento importantes que est n en los materiales de lectura que se incluyen Italiano Importanti norme di sicurezza Conservare le presenti norme per l utilizzo futuro Osservare tutte le istruzioni e le avvertenze apposte sull unita Utilizzare esclusivamente con la tensione di rete corretta Consultare le istruzioni operative fornite dal fabbricante per i dati riguardanti la tensione e l assorbimento di corren
35. abled enabled enabled enabled enabled enabled enabled enabled always off Speaker Listener Angle Listener Position Video disabled ideo disabled ideo disabled ideo disabled ideo disabled ideo disabled ideo disabled ideo disabled Listener Position Panorama Wiring Comments Center Sub R Front R Rear R Side L Rear Lexicon Part 070 11787 Rev 1 Lexicon Inc 3 Oak Park Bedford MA 01730 1441 USA Telephone 781 280 0300 Fax 781 280 0490 www lexicon com Printed in the United States of America
36. attery powered remote control unit uses 2 AAA alkaline batteries Specifications subject to change without notice 69 Installation Worksheet Model Serial Installed by Gain Rec Zone2 Gain Rec Zone2 Gain Rec Zone2 Gain Rec Zone2 Gain Rec Zone2 Gain Rec Zone2 Gain Rec Zone2 Gain Rec Zone2 OSD Position Display Time Effe Digital Effe Digital Effe Digital Effe Digital Effe Digital Effe Digital Effe Digital Effe Digital bottom always on Speaker Configuration circle selection Front us sw eo 100 120 center 16 sw None eo 100 fizo LG LG SM SM NONE 100 120 hal DIP STD DIP REARS Le SM none so 100 120 SUBWFR YES NO off 80 100 Output Levels L Front Speaker Distance Wiring Comments ct Blocked ct Blocked ct Blocked ct Blocked ct Blocked ct Blocked ct Blocked ct Blocked center 2 sec time out Output Levels L Side Digita Trigger Digita Trigger Digita Trigger Digital Trigger Digita Trigger Digital Trigger Digital Trigger Digita Trigger top Speaker Distance en
37. av fagfolk Hvis dekselet fjernes utsettes man for livsfarlig h yspenning Komponenten er merket med denne trekanten som betyr at den tilh rende litteraturen inneholder viktige opplysninger om drift og vedlikehold Komponenten er merket med denne trekanten som er en advarsel om at det finnes uisolert farlig spenning inne i kabinettet h y nok til utgj re en fare for elektrisk st t Suomi T rkeit turvallisuusohjeita S ilyt n m ohjeet tulevaa k ytt varten Seuraa kaikkia yksikk n merkittyj ohjeita ja varoituksia K yt ainaoikeaa verkkoj nnitett Tehovaatimukset selvi v t valmistajan k ytt ohjeista Huomaa ett eri k ytt j nnitteet saattavat vaatia toisenlaisen verkkojohdon ja tai pistokkeen k yt n l asenna yksikk telineeseen jossa ei ole tuuletusta tai v litt m sti l mp tuottavien laitteiden esim tehovahvistimien yl puolelle Ymp rist n l mp tila k yt ss ei saa ylitt tuotespesifikaation maksimil mp tilaa Kotelo on varustettu tuuletusreiill ja aukoilla Luotettavan toiminnan varmistamiseksi ja ylil mpenemisen v ltt miseksi n it aukkoja ei saa sulkea tai peitt Mit n esineit ei saa ty nt tuuletusaukkoihin Mit n nesteit ei saa kaataa yksikk n l kytke audiotehovahvistimen l ht j suoraan mihink n yksik n liittimeen S hk iskun ja palovaaran v ltt miseksi yksikk ei saa olla sateessa tai kosteassa eik
38. bright 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 THX Cinema THX and Dolby Digital versions THX Cinema Parameters 43 DC 1 Effects Lexicon Logic 7 THX and Dolby Digital versions Logic 7 Parameters 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 If both side and rear speaker pairs are available signals may be steered between the left side and left rear or between the right side and right rear It is also possible for a signal to be steered fully to the rear speakers with the side surround speakers 6dB lower than the rears to provide subjective rear imaging Logic 7 contains the re equalizer feature of the THX Cinema effect as well as Lexicon s proprietary dialog enhancement feature The combination of stereo surround information during music and decorrelated effects with discrete steering to the sides and rears gives Logic 7 unrivaled performance on surround encoded films Parameter Initial Value AUTO AZIMUTH DIALOG ENHANCE 0 0dB 3 0dB 6 0dB REAR ROLLOFF 453Hz 20 0k
39. c 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 Parameter Initial Value MID RT 1 89 sec BASS RT 2 36 sec 0 7 1 0 1 25xMID RT HALL SIZE 30 Meters 4 30 Meters PRE DELAY 24ms 0 88ms 453Hz 20 0kHz ON OFF 89 13 42 sec ROLLOFF 2 6kHz SPEECH DETECT CENTER LEVEL 0 15 SUBWOOFER LVL EFFECT LEVEL CUSTOM 5 to 5dB 30 to 05dB MID RT midrange reverberation time is the time required for midrange sounds to decay 60dB in level BASS RT low frequency reverberation time depends on MID RT and is expressed as a multiplier BASS RT should be set to 1 0 x MID RT for a more natural effect in smaller spaces HALL SIZE allows you to select hall sizes of lengths ranging from 4 30 meters in increments of 2 meters PRE DELAY increases the delay between the direct sound and the onset of reverberation Because some pre delay is inherent in the program material a value of 0 is usually a good starting point Increasing the pre delay value will make the hall sound larger ROLLOFF mimics the absorption of the air in the hall and typically should begin with a low frequency when simulating larger spaces SPEECH DETECT activates a circuit that distinguishes monaural speech from other inputs Essentially this control turns down the effect to make spee
40. ch clearer Whenever stereo signals are present the right and left input channels are used independently as inputs to the ambience synthesis If there is a strong monaural speaking voice present at the same time this component of the input to the Church 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 Any stereo material which was not carefully mixed for surround is a good candidate for playing through the Church effect with Speech Detect on Church Church Parameters 53 DC 1 Effects Lexicon Cathedral Cathedral Parameters 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 The Cathedral Effect uses a reverberation algorithm which emphasizes rich smooth reverberant decay in large spaces As its name indicates it works well for simulating a space with a long reverberation time relative to its size such as a cathedral Initial Value 3 90 sec 4 87 sec 38 Meters 40ms 2 6kHz
41. connectors and the possibly corrosive nature of some contact enhancing fluids Note that the use of standard audio cables for video or digital audio applications may cause signal degradation and is not recommended For these connections please use only cables that are designed for the applica tion these have different impedance characteristics than cables approved for analog audio applications Both audio and video cables should be kept as short as possible In general speaker cables should be kept short and low impedance wire should be used throughout to assure efficient power transmission and avoid audible distortion Recommended wire lengths are given in the table below Although these examples can be used as a general guide your system manuals should provide detailed information specific to your components Wire Lengths Length AWG Size up to 12 feet 16 gauge up to 18 feet 14 gauge up to 29 feet 12 gauge up to 51 feet 10 gauge Before making any connections turn off ALL audio and video components including individual power amplifiers Unplug any preamps and power amps that don t have power switches The DC 1 is designed to function as the control center of the system selecting inputs and controlling the volume of all speakers in the system There are several ways to integrate the DC 1 into the system but they basically fall into two categories those where the DC 1 is connected directly to all of the amplifiers
42. cts to suit your own requirements To allow easy cutomization any parameter changes you make take effect instantly and automatically be come a part of the Effect You can even change the name that appears on screen Once you have made the changes you want the Effect will remain as you have set it unless you alter it again or deliberately restore the factory preset parameter values Selecting CUSTOM from any Effect Adjust menu will give you access to the controls listed to the side and described below Use MENU Aand W to highlight any menu item then press SELECT to open the submenu LISTEN CUSTOM PRESET lets you compare your edited version of an Effect with the original version as set at the factory When this control is selected MENU A and Y allow you to alternate between the preset and your modified version custom The display will confirm whether you are LISTENING TO CUSTOM or PRESET Note that this function is available even if you have not made any changes to an Effect Until you make parameter changes to create a custom version of a preset the LISTEN TO CUSTOM option will contain an exact duplicate of the preset Effect DC 1 Effects Customizing Effects CUSTOM MENU Comparing a modified Effect to the factory preset version 39 DC 1 Effects Lexicon Restoring the original parameter values of an Effect Naming your custom Effect Restoring the original Effect name Listening to only the D
43. current input source for the RECORD and ZONE 2 out puts When the REC ZONE 2 function is engaged the red LEDs are lit on the REC ZONE 2 button and on the selected source input button To change the REC ZONE 2 source press and hold down REC ZONE 2 while pressing another input selector Some specific record sources are disallowed because ofthe potential for feedback loops By default these are TAPE and VCR1 If a prohibited source is selected an error message is displayed The prohibited REC ZONE 2 source choices can be changed in the Setup menu Controls and Indicators The Front Panel LEXICON DC 1 V1 11 COPYRIGHT 1997 4 EFFECT Displays the current effect then steps through all avail able effects 5 BYPASS Toggles the selected effect on and off The stereo analog or digital inputs are fed un processed to the front left front right and subwoofer out puts while all other amplifier outputs are muted A front panel LED will light yellow and screen messages indi cate bypass is engaged 6 MUTE Attenuates all audio outputs exceptfor RECORD or ZONE 2 lights a red LED and dis plays a screen message to indicate mute is engaged The attenuation level can be setin the Setup menu 7 IR Receiver and LED The IR receiver has an asso ciated activity LED that lights green when valid IR signals are received and an LED that lights red to indicate an over load condition atthe inputs or within the DSP path
44. e Listener Position menu to display a sub menu that allows you to turn on a calibration noise source configure the speaker angle and adjust the listener position CAL NOISE is a special digitally generated signal to aid in calibrating the Speaker Angle and Listener Position parameters Note that in all cases sound will actually be produced by both front loudspeakers The adjust ments affect the perceived directionality of the sound 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 It will be easiest to calibrate this parameter if you start equidistant from the two front speakers even if this is not your normal listening position Once you have heard the effect and set the speaker angle the Listener Position parameter will allow you to move the effect to your customary listening position 34 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 When you have found this
45. e a specific acoustic level for a given volume setting and set the LOUDNESS parameter ON to provide the ideal amount of boost for any given volume setting This parameter does not affect the sound in rear or side speakers 38 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 Press the MENU A and Y buttons to move through the displayed list Press SELECT to activate a two line display which allows you to use the A and V buttons to alter the selected parameter s value Press DONE to confirm the change and move on to the next menu item Each DC 1 Effect and its parameter menu is described in the following section Although the list of available parameters will vary with different effects the last item in each menu is always CUSTOM Selecting CUSTOM calls up a sub menu which allows you to name your custom effects to compare your version with the original preset or to restore the preset versions of the 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 As every installation has its own unique characteristics and listeners have distinctly different preferences you will want to tailor the Effe
46. e blockeras ellert ckas Inga f rem l f r skuffas in genom ventilationshalen Inga v tskor f r spillas p enheten Anslut aldrig audioeffektf rst rkarutg ngar direkt till n gon av enhetens kontakter F r att undvika elst t eller brandfara f r enheten inte uts ttas f r regn eller fukt eller anv ndas p st llen d r den blir v t Anv nd inte enheten om den har fallit i golvet skadats blivit v t eller om dess prestanda f r ndrats m rkbart vilket kr ver service Enheten f r ppnas endast av beh rig servicepersonal Farliga sp nningar blir tillg ngliga n r locken tas bort Denna triangel som visas p din komponent varnar dig om en oisoleradfarlig sp nning inne i enheten Denna sp nning r eventuellt s h g att fara f r elst t f religger Denna triangel som visas p din komponent anger att viktiga bruksanvisningar och serviceanvisningar ing r i dokumentationen i fr ga AN AN Deutsch Wichtige Sicherheitsanweisungen Heben Sie sich diese Sicherheitsanweisungen auch f r sp ter auf Befolgen Sie alle auf der Vorrichtung stehenden Anweisungen und Warnungen Immer nur mit der richtigen Spannung verwenden Die Gebrauchsanweisungen des Herstellers informieren Sie uber die elektrischen Anforderungen Vergessen Sie nicht daB bei verschiedenen Betriebsspannungen ggf auch verschiedene Leitungskabel und oder Verbindungsstecker zu verwenden sind Stellen Sie die Vorrichtung nicht in ein unb
47. ecause Dolby Surround encoded program material is generally listened to with the unit set for Pro Logic or THX this parameter is normally off FRONT STEERING adjusts the amount of steering in the front channels At FULL the steering is identical to Dolby Pro Logic At 1 2 steering is reduced to accommodate the wide range of television programming Selecting OFF steers the center signal to both the left and right channels This parameter is automatically set to OFF for systems configured with out a center speaker Note that these systems did not contain DIALOG ENHANCE and REAR DELAY OFFSET which were made available as LOGIC 7 parameters as of the release of the Dolby Digital version of the DC 1 45 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 Initial Value Parameter AUTO AZIMUTH FRONT STEERING REAR ROLLOFF DOLBY B NR RE EQUALIZER SIDE ASSIGN SURROUND LEVEL SUBWOOFER LVL EFFECT LEVEL CUSTOM ON OFF 1 4 1 2 Full Off 453Hz 20 0kHz ON OFF ON OFF Front Side Front Rear 5 to 5dB 5 to 5dB 30 to 05dB Dependent on speaker configuration AUTO AZIMUTH is short for auto azimuth error correction automatic input balance Auto Azimuth should be set to ON for films and OFF for music When ON special patented algorithms continually moni
48. ecifications Audio 8 stereo RCA pairs Minimum Input Level 500 mVrms for maximum output 200 mVrms for Dolby level Input Gain 0dB Input Impedance 100 kQ in parallel with 150pF Video 5 composite RCA 3 S video NTSC PAL SECAM compatible Input Level and Impedance 1Vpp 750 Digital 4 2 coaxial RCA 2 optical TOSLINK conforms to S PDIF standard Audio 8 outputs Left Center Right L amp R Sides L amp R Rears Subwoofer RCA Maximum Output Level 6 Vrms System Volume 12dB Output Impedance 100 Q in parallel with 150pF Video 2 composite RCA 2 S video NTSC PAL SECAM compatible Output Level and Impedance 1V p p 750 PWR CTL Minimum Maximum Maximum Output Output Current Out 12 volts default 11 5 volts 15 3 volts 140mA 5 volts 3 3 volts 5 1 volts 200mA 20 bit Delta Sigma 10 Hz 20 kHz 0 5dB Ref 1kHz Less than 0 01 1kHz maximum output level 90dB minimum 22kHz bandwidth Ref 1kHz 60dB below maximum output level 90dB minimum 22kHz bandwidth Ref 1kHz at maximum output level 100 240 VAC 50 60Hz 35Watts universal input IEC detachable power cord provided per country of destination 17 3 W x 11 5 D x 3 6 H 440 x 292 x 92mm 19 0 W x 11 5 D x 3 5 H 483 x 292 x 89mm with rack mounting brackets 10 5 Ibs 4 8kg Operating Temperature 32 to 95 F 0 to 35 C Storage Temperature 22 to 167 F 30 to 75 C Relative Humidity 95 maximum without condensation 1 hand held b
49. el ftetes Gestell oder unmittelbar uber warmeerzeugende Ger te wie z B Tonverstarker Halten Sie die in den Produktspezifikationen angegebene maximale Umgebungstemperatur bei Betrieb ein Schlitze und Offnungen im Gehause dienen der Bel fung um verlaBlichen Betrieb sicherzustellen und Uberheizen zu vermeiden dirfen diese Offnungen nich verstopft oder abgedeckt werden Stecken Sie nie irgend einen Gegenstand durch die Bel ftungsschlitze Vergie Ben Sie keine Fl ssigkeiten auf den Apparat Schlie en Sie nie Tonverstarker unmittelbar an einen Anschlu des Apparates an Um elektrischen Schlag oder Feuer zu vermeiden setzen Sie den Apparat weder Regen noch Feuchtigkeit aus und betreiben Sie ihn nicht dort wo Wasser eindringen k nnte Versuchen Sie nicht den Apparat zu betreiben falls er fallen gelassen besch digt oder Fl ssigkeiten ausgesetzt wurde oder falls sich seine Arbeitsweise derart ndert da daraus ein Bedarf nach Raparatur zu schlieBen ist Dieser Apparat sollte nur von qualifizierten Fachleuten ge ffnet werden Das Abnehmen von Abdeckungen setzt Sie gef hrlichen Spannungen aus Dieses Dreieck auf Ihrem Apparat warnt Sie vor nicht isolierter gef hrlicher Spannung im Geh use stark genug um eine Ber hrungsgefahr darzustellen Dieses Dreieck auf Ihrem Apparat bedeutet da wichtige Betriebs und Wartungsanweisungen in der mitgelieferten Dokumentation zu finden sind Fran ais Instructions de S ret Impo
50. er Initial Value ROLLOFF 453Hz to 20 0kHz ACADEMY FILTER ON OFF MAIN LEVEL 0 16 SUBWOOFER LVL 5 to 5dB EFFECT LEVEL 30 to 05dB CUSTOM ROLLOFF regulates the treble cut in the side and rear channels The optimal setting for this parameter will vary widely with the age quality and condition of the source material ACADEMY FILTER is provided to recreate the proper tonal balance of older monaural films that were recorded with much narrower and duller frequency response than current films MAIN LEVEL controls the level of the mono signal that is reproduced by the main speakers When a center speaker is part of the configuration many films may sound better when this control is set between 6 12 This spreads the film sound out around the screen and can be more pleasant than restricting the dialog and much of the other film sound to the center speaker SUBWOOEFER 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 side and rear speakers When there are no side speakers it adjusts the amount of ambient signal mixed into the main loudspeakers 48 DC 1 Digital Controller DC lEffects Panorama extracts the natural ambience from recorded music and moves it outward from the speakers producing greater width and dep
51. er and left and right speakers LISTENER POS TION The Center Delay parameter compensates for unequal distances be tween the center speaker and the listening position and the distance from the listening position to the left and right speakers The delay relative to the main left and right channels can be adjusted between 5 0ms and 9 5 ms in 0 5 ms increments To get the correct setting by ear listen for a strong improvement in the imaging and stability of the soundstage Alternatively you can measure the path length difference and calculate the correct setting To do this measure the distance in feet from the tweeter s of your main speakers to your primary listening position Average these two numbers Measure the path length from the center speaker to your listening position and subtract this distance from the average path length of the main speakers Set CENTER DELAY to the same number of milliseconds as the number of feet of path length difference For example if the path length of your main speakers is 14 and the path length of your center speaker is 12 set the delay to 2ms If the path length of the center speaker is 15 5 set the delay to 1 5ms This adjustment globally affects all modes which use a center channel Set CENTER DELAY to 2ms Set CENTER DELAY to 1 5ms 33 Installation and Calibration Lexicon A V Sync Delay Calibrate Panorama L127 SPEAKER ANGLE
52. f damage 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 5 1 Music Dolby Digital 5 1 Music Parameters 59 DC 1 Effects Lexicon Dolby Digital Dolby Digital version Dolby Digital Parameters 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 It does not include the enhancements by Lexicon or LucasFilm which are available with other AC 3 effects in the DC 1 Parameter Initial Value AC 3 STATUS display only not user adjustable COMPRESSION Off Off On AUTO DIALOG ENHANCE 0 0dB 0 00B 3 0dB 6 0dB LFE MIX LEVEL 0 0dB 10 0db to 0 0dB SUBWOOFER LVL 0dB 5 to 5dB CUSTOM AC 3 STATUS displays the current status of incoming AC 3 data The displayed items are not user adjustable COMPRESSION enhances the intelligibility of Dolby Digital material at low volume levels 6dB or lower When set to AUTO this control auto matically limits peak signals and boosts low leve
53. ffect for music is Music Surround All the new 5 and 7 channel effects extract the spatial content hidden in two channel recordings and spread it convincingly around the listener All DC 1 matrix decoding algorithms also include Lexicon s patented correction circuits for balance and azimuth errors in the original source material which make our decoders the most accurate in the industry The difference between the new 5 or 7 channel technology and the older 4 channel technology also present in the DC 1 as the Pro Logic effect and the standard THX Cinema effect is easily heard through the increase in envelopment with music or the environmental sound of any film and through the increased listener area and spaciousness on a music CD Logic 7 technology also lets us reproduce directionally encoded effects with left right separation in the rear Thus even with a conventional 4 2 4 matrix encoded soundtrack Dolby Surround Ultra Stereo etc a sound effect which pans from left to rear will decode in the DC 1 first from the left front speaker then from the left side speaker and finally from both rear speakers The results on a film with a good soundtrack are spectacular Introduction to the DC DC 1 Digital Controller 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 p
54. gital material at low volume levels 6dB or lower When set to AUTO this control auto matically limits peak signals and boosts low level signals The amount of compression increases proportionately as volume is decreased This is quite useful when listening to Dolby Digital soundtracks at low output levels When set to ON full compression is applied regardless of volume 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 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 REAR DELAY OFFSET is an additional delay added to the rear channels when listening to LOGIC 7 and MUSIC SURROUND 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 LFE MIX LEVEL allows separate level attenuation of the LFE channel which is ultimately mixed to the subwoofer output As the bass from as many as five other channels is added to the LFE it can significantly raise subwoofer output levels and create the risk of damage to a system Careful adjustment of this parameter will allow you to achieve proper tonal balance and reduce the risk o
55. he analog input level and automatically optimizes the input gain AUTO When activated this feature controls the input gain If the signal level is too high and causes an input overload input gain is automatically decreased to a point which does not cause an overload When the signal level remains low gt 12dB below clipping for 2 5 minutes the input gain is incremented in 1dB steps to maximize dynamic range System Setup SETUP MENU Input Configuration INPUT CONFIG MENT woos wher I Input Gain 23 Installation and Calibration Lexicon Input Level Meters INPUT GAN co MANUAL 00d8 E F am PEAK LEVEL 15 008 The input level meters are displayed when you select the GAIN parameter for an active input which has been selected in the Setup menu Input Name Restore Input Name 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 The MENU A and Y buttons increase or 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 i
56. hieve proper tonal balance and reduce the risk of damage 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 THX 5 1 Dolby Digital version THX 5 1 Parameters l DC 1 Effects Lexicon 5 1 Logic 7 Dolby Digital version 5 1 Logic 7 Parameters 5 1 Logic 7 combines all the features of Dolby Digital AC 3 with enhance ments 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 It brings out all the increased excitement and spaciousness a 7 channel speaker system can produce Parameter Initial Value AC 3 STATUS display only not user adjustable COMPRESSION Off Off On AUTO DIALOG ENHANCE 0 0dB 0 00B 3 0dB 6 0dB RE EQUALIZER Off On Off REAR DELAY OFFSET Oms 0 20ms SURROUND LEVEL 3dB 5 to 5dB LFE MIX LEVEL 0 0dB 10 0db to0 0dB SUBWOOFER LVL 0dB 5 to 5dB EFFECT LEVEL 0dB 300B to 05dB CUSTOM AC 3 STATUS displays the current status of incoming AC 3 data The displayed items are
57. ide the DC 1 the potential for RF interference is elimi nated The Lexicon LDD 1 is an excellent example of one such device An outboard demodulator is not required for DVD players For recording purposes it is advisable to connect both the analog and digital outputs of your digital sources as the record outputs do not have dedicated D A converters It is possible however to use the internal D A converters in the DC 1 for recording Select the input you want to record then press the REC ZONE 2 button until red LEDs above the REC ZONE 2 and the corresponding input button light If a digital audio input is selected without a valid signal or if a digital error which affects audio performance is detected all audio outputs are muted and an error message is displayed The associated input on the front panel will display a blinking red LED while the error condition persists When valid data is restored the error message is cleared and the unit returns to normal operation The display indicates the sample rate and AC 3 if appropriate when a valid digital signal is being received Whenever Emphasis is detected within the incoming digital audio channel status bits de emphasis is automatically applied AC 3 Ready Laser Disc and LD DVD Players Recording a Digital Source Using the DC 1 D A Converter NOTE Effect Bypass is engaged when DIGITAL is selected for REC ZONE 2 inthe Input Configuration menu Digital Input Status Detecti
58. ill reduce the sensitivity of the IR receiver The DC 1 is designed to be connected to an uninterrupted AC power linein AC Connections the same manner as a VCR or a television We recommend the use of an AC line filter to protect against line surges or the installation of a line condi tioner to protect against under voltage brownouts as well as overvoltage conditions 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 Connect the power cable to the DC 1 then plug the power cord into a wall outlet or into an unswitched outlet on a surge protector Be sure that the power cord is firmly seated in the connector on the rear panel of the DC 1 Installation and Calibration Lexicon Wiring Considerations Audio Video Cables Speaker Connections Audio Video Connections There is controversy over the audible effects of different types of intercon 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 conscious of the mechanical stress from repeated insertion and overly tight
59. in the room and those where the DC 1 is connected into a tape or signal processor loop of a preamp or receiver You may choose to connect the DC 1 in the tape monitor or external processor loop of a preamp allowing you to completely bypass the DC 1 This however will make the system somewhat more complicated to operate and adds a gain stage the preamp that is not necessary Installation and Calibration DC 1 Digital Controller Connecting the DC 1 as a preamp to Lexicon sesenee gt Amplifiers SUBWOOFER Legend gt Coito TAPE CENTER Lo Video Digital pek Tara i gt soes ass 7 CD AMPLIFIERS 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 Connect your main stereo amplifier to the DC 1 FRONT outputs Connect any additional amplifier speaker combinations to the remaining outputs on the DC 1 side amplifiers to the SIDE outputs rear amplifiers to the REAR outputs center channel amplifier to the CENTER output and the subwoofer amp to the SUBWOOFER output If you are using THX type dipolar surround speakers the amplifier driving them should be connected to the DC 1
60. information i den tilh rende litteratur AN Denne m rkatp komponenten advarer om uisoleret farlig sp nding i apparatet h j nok til at give elektrisk st d Norsk Viktig informasjon om sikkerhet Ta vare p denne veiledningen for senere bruk Fglg alle anvisningene og advarslene som er angitt p apparatet Apparatet skal alltid anvendes med korrekt spenning Produktbeskrivelsen inneholder spesifikasjoner for stramkrav V r oppmerksom p at det ved ulike driftsspenninger kan veere ngdvendig a bruke en annen ledning og eller stopseltype Apparatet skal ikke monteres i skap uten ventilasjon eller direkte over varmeproduserende utstyr som for eksempel kraftforsterkere Den maksimale romtemperaturen som star oppgitt i produktbeskrivelsen skal overholdes Apparatet er utstyrt med ventilasjonsapninger For at apparatet skal veere palitelig i bruk og ikke overopphetes m disse apningene ikke blokkeres eller tildekkes Stikk aldri noe inn i ventilasjons pningene og pass p at det aldri soles noen form for veeske pa apparatet Utgangsplugger fra audioforsterkere skal aldri koples direkte til apparatet Unnga brannfare og elektrisk stot ved a sorge for at apparatet ikke utsettes for regn eller fuktighet og ikke anvendes i n rheten av vann Apparatet skal ikke brukes hvis det har blitt utsatt for stot er skadet eller blitt vatt eller hvis endringer i ytelsen tyder pa at det trenger service Dette apparatet skal kun apnes
61. inguishes monaural speech from other inputs Essentially this control turns down the effect to make speech clearer Whenever stereo signals are present the right and left input channels are used independently as inputs to the ambience synthesis If there is a strong monaural speaking voice present at the same time this component of the input to the Concert Hall 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 Any stereo material which was not carefully mixed for surround is a good candidate for playing through the Concert Hall effect with Speech Detect on 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 side and rear speakers When there are no side speakers it adjusts the amount of ambient signal mixed into the main loudspeakers 52 DC 1 Digital Controller DC lEffects The Church Effect uses a reverberation algorithm which differs from ambience in that it does not simulate the reflections of specifi
62. installation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television reception which can be determined by turning the equipment OFF and ON the user is encouraged to try to correct the interference by one or more of the following measures Reorient the receiving antenna Relocate the computer with respect to the receiver Move the computer away from the receiver Plug the computer into a different outlet so that the computer and receiver are on different branch circuits If necessary the user should consult the dealer or an experienced radio television technician for additional suggestions The user may find the following booklet prepared by the Federal Communications Commission helpful How to identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printing Office Washington DC 20402 Stock No 004 000 00345 4 Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques de la class B prescrites dans le R glement sur le brouillage radio lectrique dict par le minist re des Communications du Canada Antenna Outdoor Antenna Grounding Lead In Wire If an outside antenna is connected to the receiver be sure the antenna system is grounded so as to provide some protection against voltage surges and built up static charges Sec
63. is the angle between the main speakers as seen from the listen ing position here it is about 60 LIS TENER POS allows you to adjust for an offset listening position 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 rela tionship 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 It can also be used to compensate for poorly mastered source material If your video material appears to be out of sync add A V Sync Delay in the LISTENER POSITION menu With a video source running adjust the delay along its 1 30ms range with MENU A and Y Panorama works by canceling the sound going from each speaker to the opposite ear Its effectiveness is highly dependent on the geometry of your front loudspeakers the room and your listening position The correct timing of the canceling signal varies with the relative angle between your main speakers 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 Select CALIBRATE PANORAMA from th
64. l clues and we rely completely on our sense of hearing More than thirty years ago the introduction of two speaker stereo systems brought dramatic improvement to high fidelity music reproduction With a carefully designed system and good recording it became possible to produce a sonic picture of the original event But like a photograph hanging on a wall conventional stereo is a two dimensional snapshot of the original event We can appreciate the likeness but the picture stays in front of us while we stay in our listening room The DC 1 is designed to overcome this fundamental limitation of two speaker reproduction and bring us closer to the ultimate goal of transporting ourselves to the original musical event Introduction Introduction to the DC 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 The DC 1 extracts or synthesizes the ambient information and uses additional speakers along the sides and rear of the room to create a lateral field which closely emulates the original If the system does not have side or rear loudspeakers the DC 1 can use panorama technology to simulate
65. l signals The amount of compression increases proportionately as volume is decreased This is quite useful when listening to Dolby Digital soundtracks at low output levels When set to ON full compression is applied regardless of volume DIALOG ENHANCE boosts dialog in the center channel By targeting specific frequencies it can boost only dialog without raising the entire center channel level which would alter the output balance achieved during calibration LFE MIX LEVEL allows separate level attenuation of the LFE channel which is ultimately mixed to the subwoofer output As the bass from as many as five other channels is added to the LFE it can significantly raise subwoofer output levels and create the risk of damage to a system Careful adjustment of this parameter will allow you to achieve proper tonal balance and reduce the risk of damage 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 60 DC 1 Digital Controller DC lEffects This Effect available only in DC 1 s equipped with Dolby Digital process ing 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 effec
66. le to increase or decrease this deep bass level EFFECT LEVEL adjusts the loudness of the side and rear speakers When there are no side speakers it adjusts the amount of ambient signal mixed into the main loudspeakers 56 DC 1 Digital Controller DC Effects The Party effect allows unprocessed stereo signals to be played over all speakers for background music or for maximum acoustical output of the system Initial Value Parameter HIGH PASS OFF 40 735Hz CENTER LEVEL 0 15 SUBWOOFER LVL 5 to 5dB EFFECT LEVEL 30 to 05dB CUSTOM HIGH PASS sets the level of a filter which removes low frequencies from the center side and rear outputs This is useful if the system is being used at high volumes where low frequencies might damage smaller speakers CENTER LEVEL attenuates the level of the center channel as much as 15 dB A numerical value and horizontal bar are shown by the front panel and on screen displays during adjustment 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 center side and rear speakers The Two Channel effect allows you to use your system for two channel stereo playback Parameter Initial Value Range SUBWOOFER LVL 0dB 5 to 5dB CUSTOM SUBWOOFER LVL boosts or cuts
67. lo impresso sul componente avverte della presenza di tensioni pericolose non isolate all interno della copertura tali tensioni rappresentano un pericolo di folgorazione II presente triangolo impresso sul componente avverte l utente della presenza nella documentazione allegata diimportanti istruzioni relative al funzionamento ed alla manutenzione Owners Manual DC 1 Digital Controller Base THX and Dolby Digital Versions lexicon DC 1 Digital Controller 1 Introduction to the DC 1 anana anana anan ananannananananae 1 Introduction ooccccccccononononnncnonononcncnononononnnncnonarannnncnnnns 1 Unpacking and Inspection saa ssseaa aa aaaa aaa ann annan 5 Using the Documentation eee 5 System Overview arannana anana aaa aana sar rer ror kk nn 6 Glossary Of Terms lE kk brer an on 6 DC 1 Block Diagram ses ike 7 2 Installation and Calibration 9 Controls ANd Indicators concoccccnnccncconcnononooannnnnnnnononnns 9 TheFront Palin atari A 9 The Rear Panel K K K lll kek 10 The Remote Control l l ke 11 Remote Control ACCY Functions COANE CON iria aci 13 Location Considerations ccccccoccconcnocooooannnnnnnnnos 13 AG CONMNECIONS sasasi aab da aaa daa a kala ke a A a V vi ki 13 Wiring Considerations sasarane anae en anaa naen anna 14 Audio Video
68. n and Calibration 1 OFF and ON Separate OFF and ON but tons are provided forlearning remotes so that an auto mated key sequence does not require information re garding the current on off sta tus 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 ac tive The selected input record status current effect volume and balance settings and bypass state are saved 2 EFFECT Up and Down Display the current effect then step through all avail able effects 3 BYPASS Puts the front left right and subwoofer outputs into ste reo bypass The stereo ana log or digital inputs are fed unprocessed to the front left right and subwoofer amplifier outputs while all other ampli fier outputs are muted A front panel LED will light yellow and screen messages indi cate bypass is engaged 4 MUTE Attenuates all audio outputs except for RECORD ZONE 2 lightsaredfrontpanel LED and displays a screen mes sage Attenuation level can be set in the Setup menu 5 VOLUME Up and Down Display the current volume setting then adjust all out puts except RECORD and ZONE 2 Screen displays show a volume bar and level in dB lexicon 6 BALANCE Front Rear and Left Right Display then adjust the Front Rear and Left Right level bal ances Front and Rear con
69. n of the LFE channel which is ultimately mixed to the subwoofer output As the bass from as many as five other channels is added to the LFE it can significantly raise subwoofer output levels and create the risk of damage to a system Careful adjustment of this parameter will allow you to achieve proper tonal balance and reduce the risk of damage SURROUND MIX allows independent adjustment of the level of the sur round channels Many AC 3 encoded soundtracks sound better when down mixed to two channels with the surround level increased by approxi mately 2 3dB 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 64 Troubleshooting If you encounter a problem please review the items in the following Troubleshooting 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 No audio Remote control not working No output Center Channel only plays Muffled sound in L amp R channels Center channel sound muffled No Input Level Meters 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
70. ncoming signal level When GAIN is selected two on screen horizontal bar meters display peak incoming signal level The highest peak level is shown in dB in a separate text line and as an arrow in the the meter display White yellow and red sections of the bar meter show increasing levels The white portion is shown in 3dB increments the yellow and red portions are shown in 1 5dB incre ments An enlarged block at 21dB indicates the reference level used with a Dolby calibration tone source The peak level display can be refreshed by pressing DONE to exit then pressing SELECT to return to the display Each input has an associated name which is displayed during normal operation whenever the input is selected The default names correspond to the labels on the DC 1 remote control and the front and rear panels These names can be customized to more accurately reflect your system configura tion To assign a new name up to 8 characters for an input select NAME from the Input Configuration menu and EDIT INPUT NAME from the sub menu The display will show the current name with a cursor marking the character position to be modified Use the MENU A and V buttons to select anew character for that position and SELECT to move the cursor to another position Press DONE twice to return to the Input Configuration menu This control allows you to restore the factory name for the currently selected input Pressing SELECT displays the message PRESS SE
71. ncrease the amount of time it takes the sound to decay At very high values the decay is audibly less smooth than in the Church and Cathedral Effects which are more effective at simulating very live spaces ROLLOFF mimics the absorption of the air in the hall and typically should begin with a low frequency to simulate large spaces SPEECH DETECT activates a circuit that distinguishes monaural speech from other inputs Essentially this control turns down the effect to make speech clearer Whenever stereo signals are present the right and left input channels are used independently as inputs to the ambience synthesis If there is a strong monaural speaking voice present at the same time this component of the input to the Nighclub 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 Any stereo material which was not carefully mixed for Surround is a good candidate for playing through the Nightclub Effect with speech detect on 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
72. not user adjustable COMPRESSION enhances the intelligibility of Dolby Digital material at low volume levels 6dB or lower When set to AUTO this control auto matically limits peak signals and boosts low level signals The amount of compression increases proportionately as volume is decreased This is quite useful when listening to Dolby Digital soundtracks at low output levels When set to ON full compression is applied regardless of volume DIALOG ENHANCE boosts dialog in the center channel By targeting specific frequencies it can boost only dialog without raising the entire center channel level which would alter the output balance achieved during calibration 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 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 62 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 i
73. nsisten cies in source material rather than variations in room conditions The BASS LEVEL control allows a boost or cut of as much as 6dB below 250Hz The TREBLE LEVEL control allows a boost or cut of 6dB above 1 5kHz To select either control for adjustment use MENU A or W to select the control press SELECT and use MENU A or Y to adjust the setting These controls do not affect the sound of rear or side speakers Bass Tone Control Frequency Response Treble Tone Control Frequency Response Equalization THX and Dolby Digital versions MAIN MENU EQUALIZATICOM Bass and Treble Level 37 Installation and Calibration Lexicon Tilt Dolby Digital version Tilt Control Frequency Response Loudness Loudness vs DC 1 Volume control front left 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 The Tilt control does not alter the tonal balance of the rear or side speakers A Loudness Contour parameter which boosts bass information provides more balanced reproduction at low volume listening conditions Once you have calibrated DC 1 output levels you can assum
74. of America Dansk Vigtig information om sikkerhed Gem denne vejledning til senere brug Fglg alle anvisninger og advarsler p apparatet Apparatet skal altid tilsluttes den korrekte sp nding Der henvises til brugsanvisningen der indeholder specifikationer for str mforsyning Der g res opm rksom p at ved varierende driftsspaendinger kan det blive n dvendigt at bruge andre lednings og eller stiktyper Apparatet m ikke monteres i et kabinet uden ventilation eller lige over andet udstyr der udvikler varme f eks forst rkere Den maksimale omgivelsestemperatur ved drift der st r opf rt i specifikationerne skal overholdes Der er ventilations bninger i kabinettet For at sikre apparatets drift og hindre overophedning m disse bninger ikke blokeres eller tild kkes Stik aldrig noget ind igennem ventilations bningerne og pas p aldrig at spilde nogen form for v ske p apparatet Udgangsstik fra audioforst rkere m aldrig s ttes direkte i apparatet Apparatet m ikke uds ttes for regn eller fugt og m ikke bruges i n rheden af vand for at undg risiko for elektrisk st d og brand Apparatet m aldrig bruges hvis det er blevet st dt beskadiget eller v dt eller hvis ndringer i ydelsen tyder p at det tr nger til eftersyn Dette apparat m kun bnes af fagfolk Hvis d kslet tages af uds ttes man for livsfarlig h jsp nding Denne m rkat p komponenten advarer om vigtig drifts og vedligeholds
75. oice 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 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 side and rear speakers When there are no side speakers it adjusts the amount of ambient signal mixed into the main loudspeakers Music Logic isa surround effect developed specifically for music listening It makes full use of additional loudspeakers placed at the center sides and rear of the room and provides a slight degree of steering for the front channels Music Surround available in the THX and Dolby Digital versions of the DC 1 passes unprocessed left and right information directly to the front left and right speakers Parameter Initial Value CENTER LEVEL 0 30 FRONT STEERING 1 4 1 2 Full Off SURROUND LEVEL 5 to 5dB SIDE ROLLOFF 453Hz20 0kHz REAR ROLLOFF 453Hz20 0kHz SUBWOOFER LVL 5 to 5dB EFFECT LEVEL 30 to 05dB CUSTOM
76. on Installation and Calibration Lexicon RECORD ZONE 2 Operation 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 The only difference between the Record and Zone 2 outputs is that Zone 2 has its own volume control while the Record output level is fixed When the DC 1 is powered up the Zone 2 output is muted The DC 1 normally assigns any input selected for the Main zone indicated by a lit green LED at the front panel input button to the Record and Zone 2 outputs as well Although this will be appropriate for installations where the same input is desired for all three outputs a different input can easily be assigned to the Record and Zone 2 outputs This allows any input to be selected for the Main zone while leaving the Record Zone 2 outputs unaffected The procedure for assigning these outputs is described below To assign the current input to the Record Zone 2 outputs press and hold REC ZONE 2 until the red LEDs at the appropriate front panel input button and at the front panel REC ZONE 2 button light To clear the assignment press and hold RE
77. only sources such as an AM FM tuner to enjoy music from another source while viewing a video source It is important to remember that the impedance characteristics of composite video and digital audio are different from analog audio You should only use cables specifically designed for video and digital audio Consult your dealer for recommendations The digital inputs can be set up to be selected with any or all of the eight inputs via the Setup menu Two coaxial RCA and two optical TOSLINK M inputs are provided Using the digital inputs will always provide better performance The Base and THX versions of the DC 1 will accept digital signals sampled at 44 1kHz The Dolby Digital version of the DC 1 accepts sample rates of either 44 1 or 48kHz 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 To maintain the exceptional performance of the DC 1 an outboard demodulator is required to turn this RF signal back into a digital bitstream By performing the necessary de modulation outs
78. oo far apart raise the Speaker Angle 35 Installation and Calibration Lexicon Customization Locking Settings LOCK SETTINGS MENU Assign Custom Name Audio Bit Setting Dolby Digital Version After you have calibrated and customized the DC 1 there are two addi tional 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 Locking the settings allows full operation of the unit but prohibits the ability to change effect parameters or setup values Specifically with the settings locked the unit will allow any Parameter or Setup menu to be displayed but attempting to select any item for adjustment will display the message SETTINGS ARE LOCKED In order to prevent accidental changes select the SETTINGS parameter and use MENU A to select LOCKED A higher level of security can be achieved by simultaneously pressing the ACCY and DONE keys on the remote after selecting LOCKED To release lock select SETTINGS and hold down ACCY and DONE MENU A and Y will once again select LOCKED or UN LOCKED When the DC 1 is first turned on it displays a copyright notice with the current software version You can choose to have it display CUSTOMIZED F
79. or Pro Logic or THX this parameter is normally off 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 46 DC 1 Digital Controller DC lEffects 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 Although we have selected a default value the correct setting will vary with each recording the room and your personal taste Raising the level will provide a more enveloping surround field 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 all channels except for the center 47 DC 1 Effects Lexicon Mono Logic Mono Logic Parameters 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 Paramet
80. or systems with small center speakers and an adjustable lowpass filter is available for the subwoofer as well as a complementary highpass filter for all other speakers Press SELECT to access the selections for any highlighted menu item SPEAKER CONFIG MENU Adjust with MENU ov L SGE SAALE MOKE EENT OWE MORE or L SHL MONE Select LARGE for full range front speakers to deliver full frequency re sponse to the front outputs Selecting SMALL activates a 12dB per octave highpass filter and automatically routes low frequency information to the subwoofer output Choices of 80 100 and 120 Hz are available for the 3dB point The 80Hz filter should be used if you are using THX certified speakers You may also want to turn this control ON if you are using small satellite or in wall speakers Consult your dealer to determine their low frequency capability Systems that utilize a full range center speaker should select LARGE to direct center information to the center output with a full frequency re sponse Select SMALL for installations where the center speaker is smaller than the two main stereo speakers This will automatically engage the Bass Split feature which takes the low frequency content from the center and distributes it to the left and right front speakers reducing the risk of damage to a small center speaker without loss of bass information When SMALL is highlighted press SELECT to display and adjust the crossover
81. osition iiE 32 Surround Delay Time Alignment Dolby Digital version lt Center Delay Base and THX versions lt A V Sync Delay Dolby Digital version Calibrate Panorama Customization L Ek kk kk kek kk kk kk k 36 Locking Sengsara naba da d l Edl d k e kise naa Wa 36 Assign Custom Name keke 36 Audio Bit Setting Dobly Digital Version 36 Equalization THX and Dolby Digital versions 37 Bass and Trebel Level e Tilt Dolby Digital version Loudness DC 1 Effets iiiaae hoaa yudanagara a aane be nane SIW D 39 Customizing Effects 0narananan anana anna na nean snor kk k 39 Comparing a modified Effect to the factory preset version Restoring the original parameter values of an Effect e Naming your custom Effect lt Restoring the original Effect Name Listening to only the DC 1 Effect Music Surround THX and Dolby Digital versions 41 PIO LOGIC ria 42 THX Cinema THX and Dolby Digital versions 43 Logic 7 THX and Dolby Digital versions 44 TM Matrix cortan 46 MONO Lodi 48 Panorama kaa aa iii 49 Nightclub Lc od cds 51 Concert Hall sita aka an sants SA es kikan rra 52 GAUCHO rat aa a S an 53 A Gian ned ht a arah dn dagan ga a ana a Nagan ga NA 54 MUSIC LOGIO ibas 55 will DK 57 TWO Channel mossessssssrrssrersssrssrrrsnnr sn nr error snor anana nane 57 AC 3 Status Display Dolby
82. oth the relative level and time offset of the two channels to keep the dialog properly centered and special effects properly localized This automatic feature is the reason the unit does not need an input balance control for Dolby Surround decoding DIALOG ENHANCE boosts dialog in the center channel By targeting specific frequencies it boosts dialog without raising the entire center channel level which would alter the output balance achieved during calibration 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 all speakers except the center channel This can be extremely useful in compensating for soundtracks in which the dialog level is too low decrease EFFECT LEVEL or when you want to make the surround presentation more spectacular increase EF FECT LEVEL 42 DC 1 Digital Controller DC lEffects 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 This effect can be reset to use the Logic 7 stereo sur
83. our example a level meter at the bottom of the display will show LFE channel activity Note that there are instances where the LFE channel is on but no activity shows in the meter display This is normal and should not cause concern REF OFFSET indicates the Dialog Normalization value that is present in AC 3 bitstreams In AC 3 dialog is reproduced at 31dBFS 31dB below full scale If the program material was mixed so that dialog is at 31dBFS then REF OFFSET 0dB If the dialog was mixed at a hotter level for example 21d BFS then REF OFFSET 10dB and the DC 1 would adjust the levels down 10dB to bring dialog back to 31dB 58 DC 1 Digital Controller DC lEffects This Effect available only in DC 1 s equipped with Dolby Digital process ing 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 Range AC 3 STATUS display only not user adjustable COMPRESSION Off Off On AUTO RE EQUALIZER Off On Off SURROUND LEVEL 0dB 5 to 5dB REAR DLY OFFSET Oms 0 20ms LFE MIX LEVEL 0 0dB 10dB to 0dB SUBWOOFER LVL 0dB 5 to 5dB CUSTOM AC 3 STATUS displays the current status of incoming AC 3 data The displayed items are not user adjustable COMPRESSION enhances the intelligibility of Dolby Di
84. point for the low frequency redistribution Available crossover points are 80 100 and 120Hz Press DONE to return to the Speaker Configuration menu Setting the Speaker Configuration SETUP MENU Front L R The high pass filter attenuates low fre quencies at 12dB per octave The values given are for the 3dB point Center Bass Split rolls off frequencies at 12dB per octave The values given are at the 3dB point of attenuation from the center speaker 27 Installation and Calibration Lexicon Sides Rears Subwoofer Output Subwoofer Frequency Response 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 Selecting NONE mutes the side outputs and disables any effect parameters related to side speakers In the Dolby Digital version of the DC 1 the active selections are LARGE and SMALL Systems that utilize full range rear speakers should select LARGE to direct a full range signal to them SMALL should be selected when filtering is desired Off 80 100 and 120Hz are available as setting
85. ppears on your component This triangle which appears on your component alerts you to the presence of uninsulated dangerous CAUTION alerts you to important operating and maintenance voltage inside the enclosure voltage that may be RISK OF ELECTRIC SHOCK instructions in this accompanying literature sufficient to constitute a risk of shock DO NOT OPEN Adhere to all warnings on the unit and in the operating instructions Take precautions not to defeat the grounding or polarization of the unit s power cord Do not overload wall outlet extension cords or integral convenience receptacles as this can result in a risk of fire or electrical shock Route power supply cords so that they are not likely to be walked on or pinched by items placed on or against them paying particular attention to cords at plugs conveneince receptacles and the point at which they exit from the unit The unit should be cleaned only as recommended by the manufacturer Communications Notice This equipment generates and uses radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio and television reception It has been type tested and found to comply with the limits for a Class B computing device in accordance with the specifications in Subpart J of Part 15 of FCC Rules which are designated to provide reasonable protection against such interference in a residential
86. rence to the composite sig nal AUX and TV accept composite only Video inputs are selected with their corre sponding audio inputs and fed to the selected monitor output jack Record output jacks can be selected inde pendently To preventa feedback loop with the Record Zone 2 outputs VCR1 and TAPE are normally blocked from assignment as REC ZONE 2 outputs TAPE TUNER and CD default to VCR1 as a video input Any input label and its default status can be changed in the Setup menu 1 Ground 2 Ground 3 Power On 4 Unused 5 Trigger programmable 7 VIDEO OUTPUTS RCA composite and S video connectors are provided for monitor and record If an S video input is used both S video and composite are available at each output If the video input is composite only composite is available at each output The monitor output incorporates the on screen video overlay Unless RECORD is enabled the record output follows the monitor output selection with out the on screen display fea ture Both outputs are blanked in standby 8 Power On Off Master power switch discon nects the AC Mains This switch is intended to be left On during regular use When ever cables are connected or disconnected or when the unitis not going to be used for an extended period of time this switch should be set to Off 9 POWER AC power connector 3 wire 10 Amp IEC 320 10 DC 1 Digital Controller Installatio
87. rences nettes dans son fonctionnement indiquant la n cessit de r parations Cet appareil ne doit tre ouvert que par un personnel de service qualifi En enlevant les couvercles vous vous exposez a des tensions lectriques dangereuses Ce triangle sur votre appareil vous avertit de la pr sence de tension dangereuse non isol e a l int rieur du boitier une tension suffisante pour repr senter un danger d lectrocution Ce triangle sur sur votre appareil vous invite de suivre d importantes instructions d utilisation et d entretien dans la documentation livr e avec le produit Espa ol Instrucciones importantes de seguridad Guarde esta instrucciones para uso posterior Utilice siempre el voltaje correcto Dir jase a las instrucciones de operaci n del fabricante para obtener las especificaciones de potencia Est al tanto de que voltajes de operaci n distintos requieren el uso de cables y o enchufes distintos No instale esta unidad en un estante sin ventilaci n nitampoco directamente encima de equipos que generen calor tales como amplificadores de potencia F jese en las temperaturas ambientales m ximas de operaci n que se mencionan en las especificaciones del producto Las aperturas y ranuras del chasis sirven para proveer la ventilaci n necesaria para operar la unidad con seguridad y para prevenir sobrecalentamiento y por lo tanto no pueden ser obstruidas o cubiertas No introduzca objetos de ning n tipo
88. rocessor 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 In addition the DC 1 includes the Panorama effect which cancels the crosstalk between the listener s ears and spreads the sound from just two loudspeakers into a wide arc A listener in the right spot is completely enveloped by the original sound field of the recording The Dolby Digital version of the DC 1 opens a whole new world of lateral sound With AC 3 encoded source material the DC 1 plays 5 discrete channels plus a low frequency effects LFE channel as the original sound producer intended from speakers all around the listener When 7 speakers are available the 5 1 Logic 7 effect uses Lexicon matrix technology and delay to differentiate between the side speakers and the rear speakers The improvement in envelopment over standard 5 1 channel decoding is not subtle Like Logic 7 for two channel matrix encoded film we find the 5 1 Logic 7 effect gives the highest standard of 5 1 channel reproduction currently available Enhancements to Dolby Digital AC 3 are available in the THX 5 1 effect and some of these are included as parameters in 5 1 Logic 7 The Dolby Digital version of the DC 1 also includes effects for optimally reproducing 5 1 channel encoded music as well as the original Dolby Digital 5 1 channel effect The 5 1 Two Channel effect allows material encoded in AC 3 with 5
89. rounds with the Stereophonic setting of Surround Mode although full separation between the sides and the rear speakers is not available Initial Value Parameter AUTO AZIMUTH SURROUND MODE ON OFF STEREO DECORR ON OFF 5 to 5dB RE EQUALIZER SUBWOOFER LVL CUSTOM AUTO AZIMUTH is short for auto azimuth error correction automatic input balance Auto Azimuth should be set to ON for films and OFF for music When ON special patented algorithms continually monitor the input signal and adjust both the relative level and time offset of the two channels to keep the dialog properly centered and special effects properly localized This automatic feature is the reason the unit does not need an input balance control for Dolby Surround decoding SURROUND MODE selects the type of surround decoding used by the DC 1 STEREOPHONIC provides extraction of five channels of surround information from a standard 4 2 4 matrix encoded soundtrack Dolby Surround Ultra Stereo etc The drama of this effect is dependent on the source material and is most noticeable with strong stereo music soundtracks The DECORRELATED setting electronically scrambles the monaural sur round channel to provide added spaciousness and envelopment 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
90. routine which takes a couple of seconds If the DC 1 LCD displays normally at the end of this test no problems have been found with the DC 1 circuitry If the internal tests fail the LCD may display an error message or no message at all If this happens contact Lexicon 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 procedure described on the following page 66 DC 1 Digital Controller Troubleshooting 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 Avoid using any abrasive materials such as steel wool or metal polish If the unit is exposed to a dusty environment a vacuum or low pressure blower may be used to remove dust from the DC 1 exterior If severe power surges or sags cause problems with DC 1 memory storage or you simply want to start with a clean slate you can restore all of the factory defults with the following procedure This will erase any programs you have stored as well as all setup and calibration values Note any settings
91. rtantes Gardez ces instructions pour r ference future Observez toutes les instructions et tous les avertissements marqu s sur l appareil Branchez uniquements sur un r seau de tension indiqu e Consultez le manuel d instruction du fabriquant pour les sp cifications de courant N oubliez pas que diff rentes tensions peuvent n cessiter l utilisation de cables et ou de fiches de connexion diff rents N installez pas l appareil en un compartiment non a r ou directement au dessus d quipements g n rateurs de chaleur tels qu amplificateurs de courants etc Ne d passez pas la temp rature ambiante maximale de fonctionnement indiqu e dans les sp cifications du produit Des fentes et ouvertures sont pr vues dans le bo tier pour l a ration Pour assurer le bon fonctionnement et pour pr venir chauffement ces ouvertures ne doivent pas tre couvertes ou bloqu es N ins rez pas d objets dans les fentes d a ration Emp chez tout liquide de se r pandre sur l appareil Ne connectez jamais d amplificateurs audio directement aux connecteurs de l appareil Pour emp cher les chocs lectriques et le danger d incendie vitez d exposer l appareil a la pluie ou a l humidit et ne le mettez pas en marche en un endroit ou il serait expos aux claboussures d eau N essayez pas de faire fonctionner l appareil s il est tomb a terre a t endommang expos a un liquide ou si vous observez des diff
92. s for the 3dB point Selecting NONE mutes the rear outputs and disables any effect parameters related to rear speakers Use of the subwoofer output is specified here Selecting YES then pressing SELECT allows you to display and adjust the crossover frequency for the subwoofer output The subwoofer output is created by summing the front left center and right outputs followed by a 24dB octave lowpass filter For 5 1 effects in the Dolby Digital version the two surround channels and the LFE channel are also summed Both the summing and filtering are per formed in the digital domain You can select three different crossover points 80 100 or 120Hz for the subwoofer 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 NO mutes the subwoofer output and disables the Subwoofer Level param eter 28 DC 1 Digital Controller Installation and Calibration 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 Using an external source such as the Video Essentials laser disc ID3487ISF or The Surround Spectacular disc from Delos DE 3179 or the DC 1 s internally generated calibration signal adjust the level of each o
93. s ultimately mixed to the subwoofer output As the bass from as many as five other channels is added to the LFE it can significantly raise subwoofer output levels and create the risk of damage to a system Careful adjustment of this parameter will allow you to achieve proper tonal balance and reduce the risk of damage 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 center side and rear speakers 63 DC 1 Effects Lexicon 5 1 Two Channel Dolby Digital version 5 1 Two Channel Parameters 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 Parameter Initial Value AC 3 STATUS display only not user adjustable LFE MIX LEVEL 0 0dB 10dB to 0dB SURROUND MIX 2dB 5 to 5dB SUBWOOFER LVL 5 to 5dB CUSTOM AC 3 STATUS displays the current status of incoming AC 3 data The displayed items are not user adjustable LFE MIX LEVEL allows separate level attenuatio
94. sentially the DC 1 is a signal processing computer that can be custom programmed for any specific system Once installed it can be operated easily via a remote providing effects tailored for your specific listening environment and complete control of every aspect of operation The Lexicon DC 1 Digital Controller has a single goal to draw you the listener more deeply into a musical performance or film For music the DC 1 uses 5 or 7 channel digital processing to recreate the original recording space or true stereo synthesis to create a new one of your choosing For films it offers Dolby Digital and Lexicon s proprietary Logic 7 M enhance ments to Pro Logic surround decoding along with the enhancements of the Lucasfilm Home THX Cinema system The increase in impact of a musical performance or film heard with the DC 1 is incredible To recreate the experience of being at a live musical performance the DC 1 draws on ongoing studies of concert hall acoustics and applies this research to home listening rooms Our auditory sense is quite adept at interpreting clues about our physical environment Even with your eyes closed it is possible to get a good mental picture of the room or hall you are in by listening to the ambience or reflected sound energy in the room We are not aware of our auditory perception of space in everyday life because it confirms what our eyes readily see When we listen to recorded music however there are no visua
95. ser discs This signal must be demodulated or turned back into a digital signal before it can be decoded by the DC 1 Several manufacturers provide equipment which will perform the neces sary demodulation Lexicon s LDD 1 is designed specifically to provide external AC 3 RE demodulation and auto switching with minimal degrada tion of performance due to RF interference Other AC 3 formats such as DVD output AC 3 code as a digital signal and do not require demodulation Introduction to the DC 1 DC 1 Digital Controller 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 Remove the adhesive protective film from the DC 1 front panel lens and remote control Report any shipment damage to the carrier at once report equipment malfunction to your dealer Because the DC 1 is designed to be customized for your system and your Using the listening space the information required for installation is extensive Documentation This manual describes the DC 1 base system the THX version and the Dolby Digital version which incorporates all of the THX enhancements in addition to the Dolby Digital features Features which are available only in certain versions are noted wherever appropriate To upgrade a base or THX system contact your dealer or Lexicon In most cases upgrading can be accomplished
96. settings of selected pa rameters DONE saves the current changes Press one of the EFFECT buttons any Input Selector RECORD ZONE 2 or any BALANCE button to exit Press OFF to exit the menu and enter standby 10 ACCY Provides accessory functions when pressed in conjunction with other remote buttons See following page 11 Installation and Calibration Lexicon Remote Control Press and hold ACCY then press DONE to activate a You Are Here mode which ACCY Functions Disablesmute e Sets volume to 30dB sets Zone 2 volume to 20dB e Centers Balance controls e Loads the Pro Logic Effect e Selects the VCR1 input does not affect the Rec Zone 2 input e Activates On Screen display with 2 second timeout e Sets Remote Trigger ON e Sets all tone controls to 0dB or OFF On Screen On Screen Display OFF Display ON Bass Adjust Treble Adjust Clear Assigned Effect O Fuli Mute Assignable Effects 8 Activate Zone 2 Control Activate You Are Here mode access Lock in LOCK SETTINGS menu Hold down to access hidden functions 5dB Volume Step Tilt Adjust Dolby Digital version Deactivate Zone 2 Control and restore normal operation Tilt Adjust Dolby Digital version Remote Trigger ON 508 Volume Step Remote Trigger OFF To assign an effect to the input buttons the original assignment must be cleared with the following procedure Press and hold ACCY then press BYPASS Press the input but
97. sweet spot you will notice an almost physical sensation of silence in your right ear Now select RIGHT ONLY Again shift your head from side to side to find the sweet spot this time looking for the point where the sound is strongest in your right ear Select LEFT AND RIGHT to determine if the sweet spots from the left and right tests coincide If they do not coincide return to the SPEAKER ANGLE display If the first sweet spot is to the left of the second press MENU Ar if it is to the right press MENU V If your normal listening position is not centered between your two front speakers once you have corrected the speaker angle setting you can move the sweet spot to that position To do this select LISTENER POS and use MENU A and W to move the effect As you adjust the position the display will indicate motion to the left of center L001 L002 L003 L127 CENTER or to the right of center R001 R002 R003 R127 The numbers represent approximately 1 3 but are provided primarily as a general reference Panorama is now calibrated Press DONE repeatedly to step back to the main setup menu III a i Sey AAA KA es Move your head from side to side to find the position where the noise is full left and the right ear hears near total silence When calibrating right if your left ear is in the silent band the speaker angle is correct If the two silent bands are too close lower the Speaker Angle if they are t
98. t the side and rear speakers are driven in parallel when you designate side speakers as STANDARD LARGE or SMALL in the Speaker Configuration menu Parameter Initial Value AC 3 STATUS display only not user adjustable COMPRESSION Off On AUTO RE EQUALIZER On Off LFE MIX LEVEL 10 0dB to 0 0dB SUBWOOFER LVL 5 to 5dB CUSTOM AC 3 STATUS displays the current status of incoming AC 3 data The displayed items are not user adjustable COMPRESSION enhances the intelligibility of Dolby Digital material at low volume levels 6dB or lower When set to AUTO this control auto matically limits peak signals and boosts low level signals The amount of compression increases proportionately as volume is decreased This is quite useful when listening to Dolby Digital soundtracks at low output levels When set to ON full compression is applied regardless of volume 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 LFE MIX LEVEL allows separate level attenuation of the LFE channel which is ultimately mixed to the subwoofer output As the bass from as many as five other channels is added to the LFE it can significantly raise subwoofer output levels and create the risk of damage to a system Careful adjustment of this parameter will allow you to ac
99. te Potrebbe essere necessario l uso di cavi di rete e o di spine diverse a seconda della tensione utilizzata Non installare l unit in uno scaffale privo di ventilazione oppure direttamente sopra una fonte di calore come ad esempio un amplificatore Non superare la temperatura ambientale massima di funzionamento riportata nei dati tecnici del prodotto Le fessure e le altre aperture nella scatola servono alla ventilazione Per un funzionamento affidabile e per evitare un eventuale surriscaldamento queste aperture non vanno ostruite o coperte in nessun modo Evitare in tutti icasidi inserire oggetti di qualsiasi genere attraverso le fessure di ventilazione Non versare mai del liquido di nessun tipo sull unit Evitare sempre di collegare le uscite dell amplificatore audio direttamente ai connettori dell unita Per prevenire il pericolo di folgorazione e di incendio non esporre l unit alla pioggia o ad un umidit eccessiva evitare di adoperare l unit dove potrebbe entrare in contatto con acqua Evitare di adoperare l unit se la stessa stata urtata violentemente se ha subito un danno se stata esposta ad un liquido o in caso di un evidente cambiamento delle prestazioni che indichi la necessit di un intervento di assistenza tecnica Ogni intervento sull unit vaeseguito esclusivamente da personale qualificato La rimozione della copertura comporta l esposizione al pericolo di folgorazione Il presente triango
100. th 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 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 The strength of the Panorama effect drops off as you move away from the prime listening position especially to the sides Video systems with the main loudspeakers spaced closely on either side of a TV screen will produce a usable effect over a somewhat wider area than set ups with a large included angle between the speakers Parameter Initial Value INPUT BALANCE Centered Full Left Full Right LOW FREQ WIDTH 0 25 to 25 REAR LEVEL 25 0 32 REAR ROLLOFF 4 9kHz 453Hz 20 0kHz 0 32ms REAR DELAY 10ms CENTER LEVEL 0 15 BASS CONTENT STEREO MONO BINAURAL SUBWOOFER LVL 05 to 05dB EFFECT LEVEL 0 62 CUSTOM INPUT BALANCE allows you to compensate for the occasional source with audible channel imbalance When selected screen graphics indicate the relative left right position LOW FREQ WIDTH allows you to apply low frequency spatial correction to the signal Positive values of LOW FREQ Width indicate that the difference signal L R has additional energy below 500Hz while
101. 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 Party Party Parameters Two Channel Two Channel Parameters 57 DC 1 Effects Lexicon AC 3 Status Display Dolby Digital version Moza STATUS MATRIX ENG ODED 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 en coded No indicates it is not DOWNMIX YES indicates material is being downmixed for speaker con figuration or because a two channel effect is being utilized NO indicates no downmixing is taking place DATA RATE 32 640kb depending on the data rate of the incoming signal SAMPLE RATE 44 1kHz or 48kHz depending on the incoming signal PGM CONTENT shows you the actual spatial characteristics of the incom ing soundtrack The information appears as F S LFE where F the number of front channels and S the number of surround channels LFE 1 if the LFE channel is on For example a given source may display 3 2 1 indicating that the source was recorded with 3 front channels 2 surround channels and the LFE channel When the designation 1 indicates that the LFE channel is on as in
102. them The object is to generate signals for the sides and rear speakers which recreate the lateral sound missing in conventional stereo The most basic approach to this is to analyze the incoming material and extract from it the information which should be reproduced from the sides and the rear As this is also the object of any standard matrix film decoder one might think the technology for doing this was well understood but it is not so easy Matrix film decoders evolved from early Quad decoders and are limited to four decoded channels front left front center front right and rear When the single rear channel is reproduced from multiple speakers in a small playback room the sound from the different speakers interferes with itself creating a non enveloping soundfield with an unpleasant timbre Although there have been decoders in the past with the ability to separate directionally encoded effects into more than four directions they have all suffered from reduced separation of the rear channels during playback of music The DC 1 solves this basic problem with a new idea a 5 or 7 channel decoder which is completely compatible with a standard decoder for any directionally encoded effect but which maintains the maximum difference between the left and right side rear channels at all times This new technology is available in the THX and Dolby Digital versions of the DC 1 in several effects The basic effect for films is Logic 7 and the basic e
103. tion 810 of the Antenna Dischame National Electrical Code ANSI NFPA No 70 1984 provides information with respect to proper aaa Section grounding of the mast and supporting structure grounding of the lead in wire to an antenna discharge note unit size of grounding conductors location of antenna discharge unit connection to grounding Service Bowral int Equipment arap eii electrodes and requirements for the grounding electrode See figure below Ground Clamps Power Lines An outside antenna should be located away from power lines Power Service Grounding Electrode System NEC National Electrical Code NEC Art 250 Part H 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 Logic 7 Auto Azimuth and the A Z logo Az auto AZIMUTH are trademarks of Lexicon Inc Copyright 1996 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 USA Tel 781 280 0300 e Fax 781 280 0490 www lexicon com Lexicon Part 070 11787 Rev 1 Printed in the United States
104. to the input to the DC 1 s 20 bit Digital to Analog D A converters After conversion the signal is sent to the Record and Zone 2 outputs As this setup bypasses the D A convert ers in the source component and utilizes the 20 bit D A converters in the DC 1 sound quality can be dramatically improved when recording or listening in Zone 2 This setup automatically engages Effect Bypass BLOCKED simply blocks the input from being sent to the Record and Zone 2 outputs This prevents feedback from occurring with devices that have both an input and output attached to the DC 1 Tape VCR etc This menu item assigns the status for the remote trigger 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 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 26 DC 1 Digital Controller Installation and Calibration 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 An adjustable crossover is provided f
105. ton The display should show EFFECT AS SIGNMENT CLEARED Assign the effect to the input button by scrolling to the desired effect pressing and holding ACCY then pressing the input button 12 Installation and Calibration DC 1 Digital Controller Connection The DC 1 is a highly specialized signal processing computer and requires Location E special care during installation to ensure optimum performance 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 e Select a dry well ventilated location out of direct sunlight Do not stack the DC 1 directly above heat producing equipment such as power amplifiers e Avoid placing the DC 1 near unshielded TV or FM antennas cable TV decoders or other receivers The DC 1 may interfere with some FM tuners if it is placed immediately above or below them Some products particularly power amplifiers may cause hum in the DC 1 if they are in close proximity e Make sure the DC 1 front panel IR receiver window is unobstructed The remote control must be in line of sight to this receiver for proper operation If line of sight is impractical an infrared remote repeater can be used with the rear panel IR connector The DC 1 may be placed in a glass doored cabinet but smoked glass will make the front panel Liquid Crystal Display LCD difficult to read and w
106. tor the input signal and adjust both the relative level and time offset of the two channels to keep the dialog properly centered and special effects properly localized This automatic feature is the reason the unit does not need an input balance control for Dolby Surround decoding FRONT STEERING The essence of the TV MATRIX Effect is that dialog music and surround effects are dynamically directed to the output chan nels 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 At 1 2 steering is reduced to accommodate the wide range of television programming Select ing OFF will steer the center signal to both the left and right channels This parameter is automatically set to OFF for systems configured without a center speaker REAR ROLLOFF sets the cutoff frequency of a low pass filter in the rear channel Frequencies above this setting are attenuated This control 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 out puts DOLBY B NR is used in Pro Logic and THA effects for the surround channels according to Dolby specifications Because Dolby Surround encoded pro gram material is generally listened to with the unit set f
107. types of operating controls we have provided be adapted into the universal remote We have found these controls enhance the listening viewing experience while keeping the technology transparent Introduction to the DC DC 1 Digital Controller DC 1 Block Diagram Stereo Analog Inpute Left only Analog Outputs VERI p 9 Len OLER Geri rel ke Right 6 Cantor HE Contra je 6 Subwootet je 1 Side gt ar Cortral he 6 A B de gt Aor Dagi Contra ES 6 A Rear SPDIF Digitel Inputs seama ES Host Processor Coaxal 2 Roa pete Mudo q ic 2 ca Front Panel Aida Vi dec Cofirote Sal ect Free Pare LEDs 5 Composite 3 5 Video Inputs Front Paret Disp be DLO video Moritor Out Video Record Out Installation and Calibration DIGITAL CONTROLLER 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 2 Input Selection Pressing any of these but tons VCR1 VCR2 V DISC TV AUX CD TUNER TAPE selects the input atthe corre sponding rear panel connec tor as the current input selec tion and lights a green LED 3 REC ZONE 2 Selects and deselects the
108. u to display the Setup menu Use MENU A and Y to step the cursor through the Setup menu selections Once an item is highlighted pressing SELECT will display a sub menu for that item With the sub menu displayed MENU A and Y once again highlight menu items Press SELECT then use MENU A and Y to adjust the settings of any item over its available range Press DONE to exit any sub menu press DONE again to return to the Setup menu The DC 1 has eight analog stereo audio 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 VCR 1 is shown below as an example Pe gem ee Adust w MENU amp och RESTORE DEFAULT or B5ET HANE USE LEST EFFECT aran nor AC Bimi For optimal performance the unit must be driven to its full input level without overloading Despite industry attempts at standardization differ ent 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 and consistent volume 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 has an auto level function which monitors t
109. ude 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 The inputs labeled VCR1 VCR2 V DISC TV and AUX normally have corresponding video inputs The inputs labeled CD TUNER and TAPE do not have associated video inputs and default to the video input VCR1 For maximum configuration flexibility each of the five video inputs can be assigned to a different source selector If the assigned video input has both S Video and composite jacks the S video signal takes priority whenever a cable is plugged into the appropriate S video connector This feature provides feedback protection when selecting a record source BLOCKED input sources cannot be selected for the record outputs thus disabling the record function Normally the record outputs are disabled for only the TAPE and VCR inputs This sub menu allows you to alter these defaults for other configurations ANALOG allows maximum flexibility by utilizing both the digital and analog connections of a digital source component provided both are attached The DC 1 processes the digital input signal for the main zone and simultaneously routes the analog input signal to the Record and Zone 2 outputs Since no D A converters are necessary for the analog input signal the functionality in the Main zone is not compromised DIGITAL routes the digital signal assigned
110. und 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 Parameter Initial Value CENTER LEVEL SURROUND LEVEL SIDE ROLLOFF 5 to 5dB 453Hz20 OkHz 0 20ms 453Hz20 OkHz 5 to 5dB 30 to 05dB REAR DELAY OFFSET REAR ROLLOFF SUBWOOFER LVL EFFECT LEVEL CUSTOM CENTER LEVEL attenuates the level of the center channel and can turn it off completely 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 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 REAR ROLLOFF sets the cutoff frequency of a low pass filter in the rear channel Frequencies above this setting are attenuated This control should be set high enough to give presence and airiness to the rear sound without placing
111. und Delay parameter is described below When presented with several similar sounds as in the case of surround sound we tend to localize on the first sound we hear Because surround speakers are often closer to the listening area than the main speakers occasional leakage of the front channel sound into the surround speakers can be audible and distracting Delaying the sound from the surround speakers gives the sound from the front speakers a chance to reach the listener before the surrounds kick in The SURROUND DELAY control in the Listener Position menu allows the user to set the surround delay between 15 and 30 milliseconds in one millisecond increments The best setting will depend on the distance between the main listening area and the front speakers as well as the distance between the main listening area and the surround speakers This global surround delay setting is used by surround effects that do not have their own surround delay setting In the Dolby Digital version of the DC 1 the Time Alignment control electronically aligns all of the loudspeakers in a system Although this adjustment is not a substitute for proper speaker placement it will help to ensure accurate signal arrival times at the listening position To set up Time Alignment you must physically measure the distance from the primary listening position to the front baffle of each individual speaker in your system An easy and accurate way to accomplish this is to ha
112. utput to the same relative level AS A Aest vet MERU amp ov Select INTERNAL NOISE TEST or EXTERNAL NOISE TEST from the Output Levels menu The INTERNAL NOISE TEST automatically discon nects all audio and video inputs disables any EQ functions centers the Balance controls loads the Pro Logic effect and sets the system volume to OdB The test signal circles the room according to the speaker configuration you have defined in the Speaker Configuration menu For a full comple ment of speakers the order is Left Front Center Right Front Right Side Left Side Subwoofer Right Rear Left Rear The EXTERNAL NOISE TEST loads the Pro Logic or Dolby Digital effect and uses the signal from the currently selected input for calibration Once a test source is selected a sub menu showing each output level is displayed Use the MENU A and Y buttons to highlight an output for adjustment Press SELECT to stop the cycling of the noise signal then use MENU A and W to adjust the selected output level in precise 0 5dB increments from 10dB to 10dB OUTPUT LEVELS MENU Agust wii MENU Y These coletas a BI act be actors ji MORE la weled ei ihe Speaker Kur ya rai ni meng id ta 1948 Using a Sound Pressure Level Meter such as Radio Shack model 33 2050 or 33 2055 set the weighting to C and the response to Slow Adjust all output levels to achieve 75dB at the listening position Setting Output Levels SETUP MENU OUTPUT LEVELS
113. ve a person sit in the primary listening position holding the end of a measuring tape while a second person extends the tape measure to the front baffle of each speaker in turn To enter these values select TIME ALIGNMENT in the Listener Position menu and press SELECT Use MENU A and W to highlight feet or meters and press SELECT The display will change to show the Speaker Range menu Use SELECT to highlight NEAREST SPKR and use MENU A and W to enter the actual distance Press DONE 32 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 ALIGN MENT 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 A and V to highlight and enter actual distances for each speaker The DC 1 rounds off distance settings into discrete steps choose the closest step to the actual distance in these cases If a speaker distance is further than the DC 1 can accommodate set it to the maximum allowable distance This will vary depending on your intial entry Note that the Time Alignment parameter replaced the Center Delay Center Delay parameter in Base and THX versions of the DC 1 which allowed Base and THX versions electronic alignment of the cent
114. very easily and rapidly The Owner s Manual is designed to assist you in installing calibrating and operating the DC 1 It should be used in conjunction with the remote control when configuring the system to perform optimally in your environ ment This manual was written with the underlying assumption that the installer is familiar with audio video system installation An Installation Worksheet is provided at the end of this manual for documentation of the settings arrived at during the calibration procedure Introduction to the DC Lexicon System Overview Glossary of Terms 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 Effect An effect is a configuration that determines how the DC 1 will process an input signal The base unit contains 11 effects Pro Logic TV Matrix Mono Logic Panorama Nightclub Concert Hall Church Cathedral Music Logic Party and Two Channel The THX version of the DC 1 contains these effects as well as Music Surround THX Cinema and Logic 7 The Dolby Digital version contains all of the above effects as well as 5 1 Music Dolby Digital THX 5 1 5 1 Logic 7 and 5 1 Two Channel Parameter Each Effect has a set of parameters controls that uniquel
115. ws you to set the level of attenuation used whenever the DC 1 MUTE function is engaged In the Output Levels menu attenuation levels of 10dB 20dB 30dB 40dB and FULL are available 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 last level used LAST LVL This control in the Output Levels menu allows you to select the initial volume level for Zone 2 You can choose from a range of 80 to 12dB or elect to have Zone 2 power on at the last level used LAST LVL Keep in mind that the Sub Peak Limiter is separate from the Subwoofer level controlinthe Effect Adjust menus one setting does not affect the other Mute Level Power On Volume Zone 2 Volume 31 Installation and Calibration Lexicon Setting Listener Position SETUP MENU LISTENER POS Surround Delay Base and THX Versions Distanca fin kant From Front Speskor amp PFrekratle Accsplable Surround Delay Settings Time Alignment Dolby Digital version The Listener Position menu is used for setting the surround and center delays and calibrating the Panorama effect LISTENER POS TION EN XEN CAL RISE OF LEFT ONLY LEH AMO emeh we e ava O Li ENER POS Note that the Time Alignment parameter replaced the Surround Delay parameter in Base and THX versions of the DC 1 The Surro
116. y characterize it The settings of the parameters can be changed to custom ize each Effect Effect Parameter values are stored recalled with each Effect Some ex amples are Rolloff Subwoofer Level etc System parameter values are not associated with a particular Effect and their values do not change when a new Effect is loaded Examples are display contrast volume etc Presets The DC 1 contains a set of Effects with factory set parameters You can use these Effects as is or make changes to the parameters to suit your own needs The factory parameter settings are permanently stored in memory where they can be accessed for comparison with your own versions or restored Essentially the DC 1 can be thought of as a line level preamp D A converter with three audio only five audio video and four digital inputs It behaves as the master processor for your system controlling system volume bal ance source selections output selections for audio and video and acousti cal environments specifically designed for music and movies The remote control provided with the DC 1 is designed for simple daily use as well as for use in configuring the DC 1 to work optimally with your system The remote gives you access to setup controls and parameter menus for all of the DC 1 Effects In many systems a learning remote such as the Lexicon 500T may take the place of the DC 1 remote If you are using one of these we strongly suggest that the

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