LexiconメーカーDC-2の使用説明書/サービス説明書
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Owner's Manual DC-2 Digital Controller.
Lexicon Part #070-13227 Rev 1 Printed in the United States of America 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.
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Contents DC-2 Digital Controller Introduction 1 Installation Controls and Indicators ..................................................... 1 The Front Panel ........................................................... 1 The Rear Panel .................
Lexicon Using DC-2 Effects .......................................................... 33 Restoring the original parameter values of an Effect Naming your custom Effect • Restoring the original Effect Name • Listening to only the DC-2 Effect Front/Back Fader 3 PCM Effects and Parameters Panorama .
Introduction The DC-2 can be thought of as four units in one. At its heart is a reference- quality 8-channel music and film digital audio computer capable of creating or recreating a limitless amount of listening environments.
Lexicon Using the Documentation Because the DC-2 is designed to be customized for your system and your listening space, the information required for installation is extensive. The Owner's Manual is designed to assist you in installing, calibrating and operating the DC-2.
Effect An effect is a configuration that determines how the DC-2 will process an input signal. The DC-2 can contain as many as 24 effects: Panorama, Nightclub, Concert Hall, Church, Cathedral, Party, 2-Channel, Music Surround, Music Logic, Logic 7, TV Matrix, Pro Logic, THX Cinema, Mono Logic, 5.
1 DC-2 Digital Controller Installation 1 Controls and Indicators The Front Panel 1. ON/OFF ON/OFF alternately puts the DC-2 into and out of standby. Turning the DC-2 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 tem- perature.
Lexicon 2 Installation The Rear Panel CAUTION: Never make or break any connections to the DC-2 with the rear-panel power ON. Make sure any associated amplifiers are turned off before turning this master power switch on or off.
3 DC-2 Digital Controller Installation The Remote Control Shift Digital Controller EFFECTS Record Zone 2 FP FP OSD OSD OFF ON DONE SELECT Mute Light V O L F X 2 CH Party TV M Music VCR DVD VDisc TV AU.
Lexicon 4 Installation Alternate Remote Control Functions Using the Shift and Record/Zone 2 buttons Shift Digital Controller EFFECTS Record Zone 2 FP FP OSD OSD OFF ON DONE SELECT Mute Light V O L F X.
5 DC-2 Digital Controller Installation Shift Digital Controller EFFECTS Record Zone 2 FP FP OSD OSD OFF ON DONE SELECT Mute Light V O L F X 2 CH Party TV M Music VCR DVD VDisc TV AUX CD Tuner Tape Zon.
Lexicon 6 Installation Connection Location Considerations The DC-2 is a highly specialized signal processing computer and requires special care during installation to ensure optimum performance. The DC-2 may be installed on a shelf or in a standard 19" equipment rack, using an optional rack-mount kit available from Lexicon dealers.
7 DC-2 Digital Controller Installation Wiring Considerations There is debate over the audible effects of different types of interconnects. Good engineering practices have minimized the effect that cables might have on the inputs and outputs of the DC-2 — but feel free to evaluate different interconnects in your system.
Lexicon 8 Installation Input sources should be connected directly to the DC-2 inputs. Since TAPE, TUNER and CD are audio only, the video output will default to the video signal from VCR. This allows TV or other video source viewing while different audio is playing, but can be changed in the INPUT CONFIG menu.
9 DC-2 Digital Controller Installation The DC-2 has five composite and S-Video inputs. 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.
11 DC-2 Digital Controller System Configuration 2 System Configuration Restore Factory Defaults Although the DC-2 memory is cleared before it leaves the factory, it is good practice to restore the factory defaults with the following procedure before system configuration.
Lexicon 12 System Configuration 20 100 1k 10k (Hz) (dB) 9.0000 7.0000 5.0000 3.0000 1.0000 -1.000 -3.000 -5.000 -7.000 -9.000 20k 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.
13 DC-2 Digital Controller System Configuration DISPLAY ADJUST MENU ON-SCREEN DISPLAY FRONT PANEL DISPLAY Display Adjustment To adjust contrast, use SELECT to highlight CONTRAST ADJUSTMENT, and ▲ or ▼ to set the contrast of the display to its maximum as seen from your listening position.
Lexicon 14 System Configuration Video Input Selection and the On-Screen Display When using the Video Monitor output with the On-Screen Dis- play, the DC-2 automatically puts up a blue or grey background when no video signal is present.
15 DC-2 Digital Controller System Configuration INPUT CONFIG V-DISC GAIN NAME PCM FX AC-3 FX DTS FX FX FORMAT AUDIO IN VIDEO IN REC/ZONE2 TRIGGER ▲▼ Adjust with or OFF V-DISC LOGIC 7 5.
Lexicon 16 System Configuration The input level meters are displayed when you select the GAIN parameter for an active input which has been selected in the Setup menu. When GAIN is selected, two on-screen horizontal bar meters display peak incoming signal level.
17 DC-2 Digital Controller System Configuration The DC-2 can also be set up to automatically switch to an appropriate effect whenever PCM, AC-3 or DTS encoded material is detected at the input.
Lexicon 18 System Configuration * As the DC-2 is in AUTOMATIC mode, there may be a brief burst of noise before normal playback begins. The DC-2 V-DISC input is selected. A movie encoded in Dolby Surround is put in the laser disc player and starts to play.
19 DC-2 Digital Controller System Configuration PCM Only NOTE: PCM ONLY is automati- cally selected for an input when- ever ANALOG is selected as the AUDIO IN setting, as AC-3 and DTS effects are incompat- ible with analog inputs. If PCM ONLY is selected as the FX FORMAT for a given input, only PCM effects in the DC-2 can be used.
Lexicon 20 System Configuration 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 displayed.
21 DC-2 Digital Controller System Configuration Record/Zone 2 The DC-2 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 an additional “zone” in multi-room installations.
Lexicon 22 System Configuration Zone 2 volume on to the value selected in the OUTPUT LEVELS menu and engages full mute in the main zone. OFF Turns off the Zone 2 outputs, and the associated front panel LEDs. OSD (ON) Displays a STATUS menu for the current input.
23 DC-2 Digital Controller System Configuration Speaker Configuration Select LARGE for full-range front speakers to deliver full frequency re- sponse to the front left and right outputs. Selecting SMALL activates a 12dB per octave highpass filter and automatically routes low frequency informa- tion to the subwoofer output.
Lexicon 24 System Configuration Sides Rears Center 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 left and right front speakers.
25 DC-2 Digital Controller System Configuration 10 100 50 20 1k 500 200 dBr Hz +1.000 0.0 -1.000 -2.000 -3.000 -4.000 -5.000 -6.000 -7.000 -8.000 -9.000 -10.00 -11.00 -12.00 -13.00 -14.00 -15.00 -16.00 -17.00 -18.00 Subwoofer Frequency Response The low pass filter attenuates high fre- quencies at 24dB per octave.
Lexicon 26 System Configuration Note on External Noise Calibration Select INTERNAL NOISE TEST or EXTERNAL NOISE TEST from the Output Levels menu. The INTERNAL NOISE TEST automatically disconnects all audio and video inputs, disables any EQ functions, centers the Balance controls, and sets the system volume to +00dB.
27 DC-2 Digital Controller System Configuration Subwoofer Peak Limiter The DC-2 provides a Subwoofer Peak Limiter that prevents the subwoofer signal level from exceeding a preset value.
Lexicon 28 System Configuration Speaker Distance The Listener Position menu is used for setting the surround and center delays and calibrating the Panorama effect.
29 DC-2 Digital Controller System Configuration Once you have entered the distance to the nearest speaker, the DC-2 will automatically calculate the maximum allowable distance. The display will show all of the speakers, each with a default distance setting equal to your nearest speaker.
Lexicon 30 System Configuration 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 too far apart, raise the Speaker Angle.
31 DC-2 Digital Controller System Configuration This control allows you to adjust the left/right balance of the front, side and rear main outputs. This control can also be accessed on the remote by pressing and holding the Shift button and using DONE to move to the left, and SELECT to move to the right.
Lexicon 32 System Configuration Customization After you have calibrated and customized the DC-2, 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.
33 DC-2 Digital Controller System Configuration Using DC-2 Effects Customizing 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.
Lexicon 34 System Configuration 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.
35 DC-2 Digital Controller PCM Effects and Parameters 3 Panorama PCM Effects and Parameters Parameter Initial Value Range INPUT BALANCE (Centered) Full Left-Full Right CENTER LEVEL 4 0-15 REAR ROLLOFF 4.
36 Lexicon PCM Effects and Parameters The Church Effect uses a reverberation algorithm, which differs from ambience in that it does not simulate the reflections of specific halls, but emphasizes rich, smooth reverberant decay in small and medium spaces.
37 DC-2 Digital Controller PCM Effects and Parameters Party The Party effect allows unprocessed stereo signals to be played over all speakers for background music or for maximum acoustical output of the system.
38 Lexicon PCM Effects and Parameters Music Logic 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 and provides a slight amount of steering for the front channels.
39 DC-2 Digital Controller PCM Effects and Parameters The TV Matrix effect provides surround effects for television viewing of monaural, stereo, and stereo synthesized programs. Parameter Initial Value Range AUTO AZIMUTH ON ON/OFF VOCAL ENHANCE +3.0dB 0.
40 Lexicon PCM Effects and Parameters 5 SPEAKER ENHANCE simulates 7 speaker playback through a 5 speaker system, providing a heightened sense of spaciousness and envelopment without extra speakers.
41 DC-2 Digital Controller PCM Effects and Parameters Note that results will vary depending on room acoustics and the low frequency capacity of the surround speakers. As side and/or rear speakers are used for bass enhancement, the effectiveness is improved with speakers capable of reproducing reproducing low frequencies (LARGE).
42 Lexicon PCM Effects and Parameters INPUT BALANCE allows you to compensate for the occasional source with audible channel imbalance. When selected, screen graphics indicate the relative left/right position. LIVENESS adjusts the amount of recirculation within the effect.
43 DC-2 Digital Controller PCM Effects and Parameters 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.
44 Lexicon PCM Effects and Parameters component of the input to the effect is reduced while the stereo component is increased. If the input signal is pure monaural speech the reverb is almost entirely attenuated.
45 DC-2 Digital Controller AC-3 Effects and Parameters 4 AC-3 Status Display AC-3 Effects and Parameters AC-3 Effects are compatible with Dolby Digital input signals. These effects, along with the PCM Effects described in Chapter 3, are included in the AC- 3 and DTS versions of the DC-2.
46 Lexicon AC-3 Effects and Parameters Parameter Initial Value Range AC-3 STATUS (display only — not user adjustable) COMPRESSION OFF AUTO, ON, OFF RE-EQUALIZER OFF ON, OFF BASS ENHANCE OFF ON, OFF REAR DLY OFFSET 5ms 0-20ms SIDE LEVEL +00dB OFF, -30dB to +05dB REAR LEVEL +00dB OFF, -30dB to +05dB LFE MIX LEVEL +0.
47 DC-2 Digital Controller AC-3 Effects and Parameters 5.1 Logic 7 5.1 Logic 7 combines all the features of Dolby Digital AC-3 with enhance- ments by Lexicon and LucasFilm.
48 Lexicon AC-3 Effects and Parameters AC-3 STATUS displays the current status of incoming AC-3 data. The displayed items are not user adjustable. BASS ENHANCE derives stereo bass to provide low frequencies that are noticeably less localizable and more spacious in the playback room.
49 DC-2 Digital Controller AC-3 Effects and Parameters 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.
50 Lexicon AC-3 Effects and Parameters 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.
51 DC-2 Digital Controller DTS Effects and Parameters 5 DTS Effects and Parameters Parameter Initial Value Range CENTER MIX 16 0-30 SURROUND MIX +2dB -5 to +5dB CENTER DLY SAMPLES +0 -127 to +127 MASTER LEVEL +5dB -5dB to +5dB LFE MIX LEVEL +0.0dB -20.
52 Lexicon DTS Effects and Parameters DTS Logic 7 DTS Logic 7 combines all the features of DTS Digital with enhancements by Lexicon and LucasFilm. This effect uses Logic 7 matrix technology to enhance the steering between the side speakers and the rear speakers, so sounds intended to come from behind the listener actually do come from behind.
53 DC-2 Digital Controller DTS Effects and Parameters Parameter Initial Value Range SURROUND EX ON ON, OFF RE-EQUALIZER ON ON, OFF LFE MIX LEVEL +0.0dB -20.0dB to 0.0dB SUBWOOFER LVL +00dB OFF, -30dB to +5dB CUSTOM This Effect provides THX 5.1 Cinema enhancements for film soundtracks recorded in the DTS format.
54 Lexicon DTS Effects and Parameters 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.
55 DC-2 Digital Controller Troubleshooting Troubleshooting 6 T roubleshooting If you encounter a problem, please review the items in the following checklist. Also be sure to thoroughly check all other connected components such as speakers, receiver/amplifier/preamp, VCR, TV, CD player, etc.
56 Lexicon Troubleshooting Problem Possible Cause and Solution Hum Finding and eliminating audio hum in a complex installation can be a very frustrating task. Often, the easiest way to identify the culprit(s) is to systematically eliminate devices from the audio chain.
57 DC-2 Digital Controller Troubleshooting Routine Maintenance Other than occasional replacement of the batteries in the remote control, the DC-2 requires minimal maintenance. Use a soft, lint-free cloth slightly dampened with warm water to clean the exterior surfaces of the unit.
59 DC-2 Digital Controller Specifications 7 Specifications S pecifications Inputs: Audio: 8 stereo (RCA) pairs Video: 5 composite (RCA), 5 S-video, Digital: 8: 5 coaxial (RCA), 3 optical (TosLink), co.
Installation Worksheet Model/Serial #________/____________ Installed by________________________________Phone____________________Date______________ OSD Position: ■ bottom ■ center ■ top Status: ■ always on ■ 2 sec.
デバイスLexicon DC-2の購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Lexicon DC-2をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはLexicon DC-2の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Lexicon DC-2の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Lexicon DC-2で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Lexicon DC-2を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はLexicon DC-2の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Lexicon DC-2に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちLexicon DC-2デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
