Lexicon DD-8 manual Troubleshooting and Maintenance

Page 13

DD-8Power Amplifiers

Troubleshooting and Maintenance

Troubleshooting

The amplifier does not power on.

1.Attempt to power on the amplifier with the front panel Standby/On button.

2.Examine the power cord to ensure a good connection between the rear panel AC input connector and the wall outlet.

3.Check the wall outlet.

The Trigger Input is connected to an external device, but the amplifier does not power on and off with the external device.

1.Verify the trigger cable is connected at both ends and verify that the trigger cable is connected to the right device. Also re-verify the trigger installation instructions as instructed in the Basic Operation section of this user guide.

2.Verify the trigger level of the output source device. The DD-8 accepts a range of 5-15VDC.

Source signals are present and the system is at a suitable volume level but one or more channels are not passing audio.

1.Reduce system volume level.

2.Power the DD-8 into standby mode.

3.Check input connections.

4.Check speaker connections.

5.Allow the amplifier to cool before powering it on again.

Audio sounds “thin” and is lacking proper bass response.

Check to ensure proper polarity of the speaker cables and connections.

Audio Levels differ between channels.

1.Check the level settings of the DD-8 Output Level Controls.

2.Check the settings on your preamp, processor or controller.

Audio plays and then cuts off.

Check input and speaker connections for short circuits or loose connections at the amplifier and speaker.

Operation Manual

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Contents DD-8 Power Amplifier Watch for These Symbols Important Safety InstructionsDeclaration of Conformity Documentation Conventions Following symbols are used in this documentHighlights Getting StartedInstallation Options Installation ConsiderationsBasic Operation Channel Status Indicator LED’sFront Panel Standby ButtonBus Output Back PanelBus Input Output Level Controls Local InputsStereo/Mono Selection Local/Bus SelectionSignal Sense On/Off Power Save On/OffSpeaker Outputs Trigger In/Out To install a trigger cableAC Main Power Connector Troubleshooting Troubleshooting and MaintenanceHumming sound is present in the audio MaintenanceIf all else fails… Specifications This page Intentionally Left Blank DD-8 Leistungsverstärker Bedienungsanleitung Dokumentationskonventionen Diesem Dokument werden die folgenden Symbole verwendetBesondere Merkmale Erste SchritteInstallationsmöglichkeiten InstallationsvoraussetzungenVorderseite BetriebStandby-Taste LED-Anzeigen für den Status der KanäleBus-Ausgang RückseiteBus-Eingang Ausgangspegelsteuerung Lokale EingängeStereo-Mono-Auswahl Lautsprecherausgänge Lokal-Bus-AuswahlEnergiesparzustand ein/aus Trigger-Eingang und -Ausgang Signalsensor ein/ausNetzstromanschluss So installieren Sie ein Trigger-KabelFehlerbehebung Fehlerbehebung und WartungDer Verstärker lässt sich nicht einschalten Die Tonwiedergabe wird plötzlich unterbrochenDie Tonwiedergabe enthält ein summendes Geräusch WartungWenn das alles nicht hilft … Spezifikationen Amplificador de potencia DD-8 Manual de funcionamiento En este documento se utilizan los siguientes símbolos Convenciones de la documentaciónCaracterísticas destacables IntroducciónOpciones de instalación Consideraciones sobre la instalaciónPanel frontal Funcionamiento básicoBotón de espera Indicadores LED del estado del canalSalida de bus Panel posteriorEntrada de bus Controles del nivel de salida Entradas localesSelección Estéreo/Mono Salidas de altavoz Selección Local/BusAhorro de energía On/Off Entrada/salida de disparador Detección de señal On/OffConector principal de alimentación de CA Para instalar un cable de disparadorResolución de problemas Resolución de problemas y mantenimientoEl amplificador no se enciende Los niveles de audio difieren entre los canalesEl audio presenta un zumbido MantenimientoSi todo lo demás falla… Especificaciones Amplificateur de puissance DD-8 Mode demploi Conventions utilisées dans le présent document Les symboles suivants sont utilisés dans ce documentPoints essentiels DémarrageOptions d’installation Considérations relatives à l’installationFaçade avant Fonctionnement de baseBouton de mise en veille DEL indiquant l’état des canauxSortie Bus Panneau arrièreEntrée Bus Contrôles du niveau de sortie Entrées localesSélection Stéréo/Mono Sélection Local/BusSorties de haut-parleurs Activation/désactivation de la détection de signal10. Déclencheur activé/désactivé Pour installer un câble de déclencheurConnecteur d’alimentation principale secteur Dépannage Dépannage et maintenance’amplificateur ne se met pas sous tension Les niveaux audio varient selon les canauxSi le problème persiste… Un bourdonnement se fait entendre sur l’audioCaractéristiques Rapport signal/bruitPuissance de sortie Réponse en fréquenceWhat is Covered? What is the Duration of this Warranty?How is Service Obtained? How do State Laws Relate to this Warranty?This page Intentionally Left Blank Product Registration This page Intentionally Left Blank DD-8Power Amplifiers
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DD-8 specifications

The Lexicon DD-8 is a powerful digital delay processor that has gained recognition among audio engineers and musicians for its versatility and high-quality sound processing capabilities. Renowned for its advanced features and technologies, the DD-8 offers unmatched performance in both studio and live settings.

One of the main features of the Lexicon DD-8 is its ability to deliver studio-quality delays with unprecedented precision. The device is equipped with multiple delay algorithms that cater to various audio applications, including classic analog-style delays, digital delays, and more complex modulation effects. Each algorithm is designed to produce a richness of sound that enhances any audio mix, making it an essential tool for creative sound design.

The DD-8 stands out with its comprehensive user interface. It incorporates a bright, easy-to-read display and intuitive controls, which allow users to navigate through parameters effortlessly. This includes the ability to adjust delay times, feedback settings, and modulation depths in real time. Additionally, the DD-8 features a dual-path design, enabling users to apply different delay settings to two separate channels simultaneously, providing greater flexibility for stereo effects.

In terms of connectivity, the DD-8 excels with its robust input and output options. It supports both analog and digital connections, including S/PDIF and AES/EBU formats, ensuring compatibility with a wide range of audio equipment. This makes it an ideal choice for both professional studios and live performance environments.

One of the standout technologies in the DD-8 is its sophisticated DSP (Digital Signal Processing) engine. This powerful processing unit allows for a high degree of customization and control over the audio signal, enabling users to achieve complex soundscapes. The engine also ensures minimal latency, making it suitable for real-time applications without compromising sound quality.

Furthermore, the Lexicon DD-8 is built with high-quality components that contribute to its reliability and durability. Whether used in a studio or on stage, the unit's rugged construction ensures it can withstand the rigors of frequent transport and use.

In summary, the Lexicon DD-8 is a versatile and powerful digital delay processor that combines advanced sound processing capabilities with an intuitive user interface. Its rich feature set, combined with high-quality sound and dependable performance, makes it a valuable asset for any audio professional seeking to elevate their audio productions. Whether for music production, live sound, or creative sound exploration, the DD-8 remains a top choice in the realm of audio processing technology.