Lexicon DC-2 owner manual Troubleshooting

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Troubleshooting

Lexicon

Problem

Possible Cause and Solution

Hum

Interference with Radio or TV

Erratic recall of modes

If all else failsÉ

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 75Ω wire, is to attach a 75-300Ω transformer to the end, then attach a 300-75Ω transformer to that, so that the end is back to a round 75Ω wire. There are commercially available antenna lead isolators which may provide additional insula- tion from electrical surges.

The DC-2 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-2 and reorient them as necessary. Use shielded cable for FM and TV antenna feeds.

Severe power surges or sags can confuse the DC-2 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-2 rear panel OFF, wait 10 seconds, then turn it ON again. This causes the unit to run a diagnostic self-test routine which takes a couple of seconds. If the DC-2 LCD displays normally at the end of this test, no problems have been found with the DC-2 circuitry. If the internal tests fail, the LCD may display an error message, or no message at all. If this happens, contact your dealer or Lexicon Customer Service.

If you find that your custom settings are routinely being corrupted, the lithium battery in the DC-2 may need replacing. This part is not field- replaceable Ñ contact your dealer or Lexicon Customer Service.

If the unit is still behaving erratically, perform the Restore Defaults procedure described on the following page.

Lexicon maintains a knowledge base on its website (www.lexicon.com) where you can find answers to frequently-asked questions and addi- tional troubleshooting information.

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Contents DC-2 Communications Notice Important Safety InstructionsAcknowledgements Vigtig information om sikkerhed Wichtige Sicherheitsanweisungen Contents Troubleshooting Specifications Installation WorksheetPCM Effects and Parameters AC-3 Effects and ParametersIntroduction Using the Documentation Glossary of TermsPage Controls Indicators Front PanelInstallation Rear PanelInstallation Remote ControlAlternate Remote Control Functions Using the ShiftPress and hold with buttons shown to access these remote Record/Zone 2 buttonsPress and hold with Connection Location Considerations AC ConnectionsWiring Considerations Wire Lengths AWG SizeAudio/Video Connections Audio/Video CablesVideo Disc Player AC-3 RF Video Connections Digital Audio ConnectionsAC-3 Ready Laser Disc LD/DVD PlayersRestore Factory Defaults Adjust with orEqualization +0.0dBTilt LoudnessDisplay Adjustment Video On-Screen DisplayDisplay Adjust Menu ON-SCREEN Display Input Gain Input ConfigurationAnalog Inputs Only Restore Input Name Input Level MetersInput Name Input Effect FX AssignmentAutomatic AC-3 FXSystem Configuration PCM Only AC-3 Only DTS OnlyCoax 1-5 VideoDigital Audio Inputs Record/Zone Record/Zone 2 ControlsOFF Speaker Configuration Custom ConfigurationPGM Trigger Assignment Front L/RCenter Sides RearsSetting Output Levels THX ConfigurationConfiguration Subwoofer OutputOutput Levels Menu Subwoofer Peak Limiter LimiterMute Level Power On Volume Zone 2 Power On Volume Speaker DistanceSync Delay Calibrate Panorama OFF Sync DLY Balance Zone 2 Balance Locking Settings Assign Custom NameComparing a modified Effect to the factory preset version Using DC-2 EffectsCustomizing Effects Restoring the original parameter values of an Effect Listening to only the DC-2 Effect Front/Back FaderPanorama NightclubPCM Effects and Parameters Channel PartyMusic Surround Music Logic LogicTV Matrix Pro LogicMono Logic Dialog in the centerPCM Effects and Parameters PCM Effects and Parameters PCM Effects and Parameters PCM Effects and Parameters Data Rate 384 kb/sec AC-3 Status Display4dB AC-3 Effects and Parameters MusicDolby Digital THX Including Surround EXAC-3 Effects and Parameters AC-3 Effects and Parameters DTS 2-Channel DTS MusicDTS Logic DTS FilmDTS THX DTS Effect ParametersDTS Effects and Parameters Troubleshooting Problem Possible Cause and SolutionTroubleshooting Routine Maintenance Restoring Defaults ExitSpecifications Speaker Configuration circle selection Inputs

DC-2 specifications

The Lexicon DC-2 is a renowned digital surround sound processor that has garnered appreciation for its advanced technology and superior audio performance. Designed specifically for home theater systems and high-end audio setups, the DC-2 is a versatile unit that can provide high-quality sound reproduction in a variety of environments.

One of the standout features of the Lexicon DC-2 is its dual DSP architecture. This advanced processing technology enables the processor to handle complex audio formats with ease, delivering immersive soundscapes for both music and movies. The DC-2 supports formats such as Dolby Digital, DTS, and other surround sound technologies, ensuring compatibility with a wide range of media sources.

Another key characteristic of the DC-2 is its extensive connectivity options. It is equipped with multiple inputs and outputs, including analog and digital connections, which allow for seamless integration with various audio and video components. This flexibility makes it an ideal choice for those seeking to create a custom audio setup tailored to their specific needs.

The Lexicon DC-2 also features sophisticated room correction capabilities. Using the proprietary Lexicon Room Correction (LRC) technology, it analyzes the acoustic characteristics of your listening space and adjusts the audio output accordingly. This ensures optimal sound quality regardless of the room's shape or size, enhancing the overall listening experience.

Moreover, its user-friendly interface and remote control functionality offer intuitive operation, making it easy for users to navigate through different settings and modes. The LCD screen displays vital information, allowing for quick adjustments on the fly.

In terms of audio quality, the DC-2 is known for its pristine sound clarity and dynamic range. With a robust signal-to-noise ratio, it minimizes distortion and delivers a clean, accurate audio signal. Audiophiles appreciate the fidelity with which it reproduces music, bringing studio-quality sound to the home environment.

In summary, the Lexicon DC-2 is a powerful digital surround sound processor that combines advanced technologies and innovative features to provide a premier audio experience. Suitable for both casual listeners and serious audiophiles, it stands as a testament to Lexicon’s dedication to audio excellence. Its versatility, connectivity, room correction, and exceptional sound quality make the DC-2 an outstanding choice for any modern home theater system.
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