Lexicon CP-3 owner manual Problem, Possible Cause and Solution

Page 53

Troubleshooting

Lexicon

Problem

Possible Cause and Solution

Hum

Clicking in audio

Interference with AM, FM,TV or Cable TV

Erratic recall of modes

Rear speaker off in THX mode 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 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 insulation from electrical surges.

In some systems a very slight clicking may be audible with sources that are at a consistently low level. This is an artifact of the CP-3's

S/N Optimization system. To prevent this, the S/N Optimizer for each input this is observed on should be turned OFF, although defeating it will result in an increase in background noise. As always, be sure to set the input level as high as possible.

The CP-3 does generate minimal amounts of RF energy and is in compliance with FCC rules. If some interfering noise is noted, move AM loop and FM "T" type antennas away from the CP-3 and reorient them as necessary. Use shielded cable for FM and TV antenna feeds.

Severe power surges or sags can confuse the CP-3 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.

See note on side speakers, page 21.

Turn off all amplifiers. Turn the master power switch on the CP-3 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 CP-3 LCD displays normally at the end of this test, no problems have been found with the CP-3 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 when the rear-panel master POWER switch is turned ON, the CP-3 routinely displays the message "INITIALIZING", or if you find that User settings are being replaced with factory defaults after power OFF, the lithium battery in the CP-3 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.

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Contents CP-3 Acknowledgements PrecautionsUnpacking and Inspection Safety Suggestions CP-3 Digital Surround Processor Contents Introduction Introduction to the CP-3 Using the Documentation Glossary of Terms Finding your way around System OverviewIntroduction to the CP-3 Input Controls Indicators Front PanelRear Panel Power On/OffOn/Off Standard RemoteModes Expanded RemoteRefer to the Expanded Remote AC Connections ConnectionWire Lengths Wiring ConsiderationsLength AWG Size & Stranding Audio/Video Cables Speaker ConnectionsAudio/Video Connections Connecting the CP-3 as a preamp Connecting the CP-3 in a Tape Monitor Loop Video Connections P U T S Calibration LCD AdjustmentS P L a Y M E N U O S D P O S I T I O N D C O N T R a S TVideo On-Screen Display Calibration Setting the Speaker Configuration Adjusting Input Parameters Setting Input Levels+ , . / 0-9 A-Z Signal-to-Noise Optimization Automatic Input ModeAuto-Mode Load LoadingPAL and Secam Setting Output LevelsCalibration Calibrating the Listener Position Calibrate Noise Calibrate Left only Setting Rear Delay Settings Lock OFF Customization Locking In Settings Custom NameCustom Modes Mode Loads register Default presetStore Menu Store this Mode SET Mode Name Renaming a mode Presets and User Registers Using the ModesPanorama Parameters Using CP-3Using CP-3 Ambience Parameters AmbienceUsing CP-3 Reverb Parameters Using CP-3 Surround Parameters Television SurroundUsing CP-3 Music Full Range Mono Logic Pro Logic THX Cinema Problem Possible Cause and Solution TroubleshootingPossible Cause and Solution ProblemRestore Mode Setup to Exit Routine Maintenance Restoring DefaultsInstallation Documentation Lexicon Input AC Power wiring notesOSD Position Display TimeSpecifications Lexicon, Inc Oak Park Bedford, MA Tel Fax

CP-3 specifications

The Lexicon CP-3 is a high-performance audio processor known for its exceptional sound quality and advanced features, making it a preferred choice for audiophiles and sound professionals alike. This preamplifier and audio processor delivers a remarkable listening experience, incorporating cutting-edge technologies and sophisticated design.

One of the standout features of the CP-3 is its multi-channel processing capability. With support for various audio formats, it provides an immersive surround sound experience, making it a perfect fit for home theaters and high-end audio setups. The processor boasts a robust array of inputs and outputs, ensuring compatibility with a wide range of audio equipment and allowing seamless integration into existing systems.

The Lexicon CP-3 employs proprietary technologies, such as the acclaimed Lexicon Digital Signal Processing (DSP), which delivers pristine audio reproduction with minimal distortion. This technology, combined with high-resolution audio processing, ensures that every nuance of the source material is preserved. The processor also supports various audio formats, including Dolby Atmos and DTS:X, which enhances the spatial dimension of audio playback.

Another significant aspect of the CP-3 is its user-friendly interface. The processor features an intuitive control panel and a well-organized menu system, allowing users to access and configure settings with ease. Additionally, it is equipped with a remote control for convenient operation, providing flexibility for users who prefer to adjust settings from a distance.

The build quality of the Lexicon CP-3 is impressive, reflecting the brand's commitment to durability and longevity. The chassis is designed to minimize interference and provide optimal shielding against electromagnetic noise. This attention to detail contributes to the overall sound quality, ensuring that users receive the best possible audio experience.

Furthermore, the CP-3 includes advanced room correction technologies that help calibrate the sound output based on the characteristics of the listening environment. This feature optimizes the audio performance, eliminating potential issues caused by room acoustics and providing listeners with a balanced and natural sound.

In conclusion, the Lexicon CP-3 is a versatile and powerful audio processor that excels in delivering high-fidelity sound. With its multi-channel processing capabilities, innovative technologies, user-friendly design, and commitment to quality, it stands as a formidable choice for both casual listeners and discerning audiophiles, enhancing any audio setup to new heights.
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