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5 Troubleshooting

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Contents Reference Manual This page intentionally left blank Table Of Contents Chapter Four Applications Introduction WelcomeDEQ830 Key Features How to Use This Manual This page intentionally left blank Safety symbols used in this product Important Safety InstructionsImportant Safety Instructions English Please follow these precautions when using this productPage Symboles utilisés dans ce produit Instructions de Sécurité Importantes FrenchPage Sicherheit Symbole verwendet in diesem Produkt Lesen Sie bitte die folgende Sicherheitshinweise GermanPage CE Declaration of Conformity FCC Compliance StatementThis page intentionally left blank Quick Start Guide If you can’t wait to get started…Hook it up to a mixer Play some signal into the unit Try some equalizationStore the Program Save an EQ Curve DEQ830 Diagram Unpacking and Inspection Installing in a RackConnections Thermal Considerations in Rack MountingAC Power Hookup Using the DEQ830 in another countryConnecting Inputs and Outputs Unbalanced I/OMono connections Balanced I/OOperating Levels Stereo connectionsConnecting to the inserts on an instrument amplifier Connecting to equipment with XLR inputs and outputsAnalog Signal In, Digital Signal Out Digital Signal In, Analog Signal OutDigital Signal In, Digital Signal Out About Audio Cables This page intentionally left blank What is equalization? Basics of EqualizationDescription of the Front Panel Store Bypass All ALLLink Push to Link CompareProgram Value Encoder ValueNumerical LED Display Store mode Program modeEdit mode Save Curve modeRetrieve Curve mode Bypass modeChannel Level mode Link mode Utility modeReal Time Analyzer mode Basic operation Program mode Basic operation Edit modeSingle Band Edit Band Solo Band Gain Cut/Boost RangesLED Relative Gain display Multiple Band EditSelecting an Edit Group Proportional Gain MemoryBasics of Equalization Limits of Relative Gain Release Edit Group function Basic operation Store mode Basic operation Save Curve modeBasic operation Channel Level mode Basic operation Link modeCopying settings between channels Basic operation Real Time Analyzer mode Using the Value encoder in RTA modeSetting Metering modesBasic operation Utility mode Master Level +/- 6 dBRelease Edit Group On/Off Midi Program Change On/Off Edit Time Out On/OffMidi Channel ALL Midi Out/Thru Select Out/ThruForce Analog Input Auto/Analog Peak Mode 0, 1, 2, InfInternal Clock Sample Rate Select 44.1/48 Fast Program Select On/OffReceiving System Exclusive bulk dumps Demonstration mode Lock modeHidden Modes Noise Equalization ArtifactsDistortion PhasingConstant Q vs. Variable Q What makes the DEQ830 unique?Variable Q Constant QMulti-band application and results Basics of Equalization This page intentionally left blank Rock Kick Drum ApplicationsGeneral EQ tips Vocal AirFiltering effects Eliminating FeedbackAnswering machine Settings chart Comb filteringApplications Cleaning TroubleshootingCare and Maintenance Line Conditioners and ProtectorsTroubleshooting Troubleshooting IndexCustomers in the USA and Canada Obtaining Repair ServiceRefer All Servicing to Alesis Customers outside the USA and CanadaThis page intentionally left blank Specifications Audio PerformanceMechanical This page intentionally left blank Warranty / Contact Alesis Limited WarrantyAlesis Contact Information