Manuals / Crown Audio / Musical Instruments & Equipment / Music Mixer

Crown Audio IQ-USM 810 service manual Input Analog Processing Circuitry one channel

Models: IQ-USM 810

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Troubleshooting Specs Schematic Diagrams Clock Signals Warranty Maintenance Reset Chassis Assembly Test Procedures Power Supply

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130447-1 Rev. A

IQ-USM 810 Service Manual

Figure 3.3 Input Analog Processing Circuitry (one channel)

©2000 Crown International, Inc.

Circuit Theory 3-3

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Crown Audio IQ-USM 810 service manual Input Analog Processing Circuitry one channel

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Contents

Digital Processor / Digital Mixer Avis Date Revision History This page intentionally left blank Table of Contents Parts Information Crown Customer Service WarrantyIntroduction Introduction IQ-USM IQ-USM 810 Front and Rear Views Introduction Mechanical Specifications This page intentionally left blank Circuit Theory Power SupplyOverview Input 3 A/D Conversion Clock Signals Input Analog Processing Circuitry one channel DC Voltages OutputOutput Analog Processing Clock Buffers Reset 1 +3.3V Power SupplySharc Processing Clocks Bus Arbitration PLDsBus Utilization DSP Processing Sharc Pinout Audio Routing System Controller 11 68HC12 microcontroller Pinout Control Processing 2 RS232 Front DisplayCrown Bus Loop Real Time Clock General Information MaintenanceDefinitions Required Test Equipment IQ Message String Syntax Test ProceduresStandard Initial Conditions Head Room / Input Clip Level Control Port Analog Inputs Display Test IQ BUS Master Control Test/Debug Objects Typical MeasurementsHI-POT Display Test Patterns Display Test Patterns Maintenance Troubleshooting FAQs Error Codes What is preset P00? Ordering and Receiving Parts PartsTerms Shipment This page intentionally left blank Exploded View Parts Chassis Assembly Exploded View Parts Quantity Description CPN Chassis Assembly This page intentionally left blank IQ-USM 810 Modules Schematic Diagrams Module and Schematic Information Module Parts Module Parts PWA #126451-3 PWB #126346-5 Schematic #126451-3 Rev. aSystem Controller Module Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a PWA #126451-3 Component Map Component Side Module Parts PWA #126690-3 PWB #126689-3 Schematic #126690-3 Rev. aInput Module Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a This page intentionally left blank PWA #126690-3 Component Map Component Side This Page Intentionally Left Blank PWA #126693-4 PWB #126692-4 Schematic #126693-4 Rev. aOutput Module 130447-1 Rev. a 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a This page intentionally left blank PWA #126693-4 Component Map Component Side This Page Intentionally Left Blank PWA #126744-3 PWB #126743-4 Schematic #126744-3 Rev. aSharc Module 130447-1 Rev. a 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a PWA #126744-3 Component Map Component Side Module Parts PWA #126747-3 PWB #126746-3 Schematic #126745 Rev. aFront Display Module Module Parts 130447-1 Rev. a This page intentionally left blank PWA #126747-3 Component Map Component Side This Page Intentionally Left Blank PWA #128045-1 PWB #126346-5 Schematic #126323 Rev. a 130447-1 Rev. a 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a PWA #128045-1 Component Map Component Side Module Parts PWA #128047-3 PWB #126743-4 Schematic #126742 Rev. C Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a PWA #128047-3 Component Map Component Side Module Parts PWA #128047-4 PWB #126743-4 Schematic #126742 Rev. D Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a PWA #128047-4 Component Map Component Side Module Parts PWA #128049-1 PWB #126689-3 Schematic #126688 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a This page intentionally left blank PWA #128049-1 Component Map Component Side This Page Intentionally Left Blank PWA #128051-3 PWB #126692-4 Schematic #126691 Rev. C 130447-1 Rev. a 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a Module Parts 130447-1 Rev. a This page intentionally left blank PWA #128051-3 Component Map Component Side This Page Intentionally Left Blank Schematic Diagrams This page intentionally left blank

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