Manuale d’uso / di manutenzione del prodotto IQ-USM 810 del fabbricante Crown Audio
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Digital Pr ocessor / Digital Mixer SER VICE MANU AL 130447-1 04-00 Rev. A ©2000 by Crown International, Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.
IQ-USM 810 Ser vice Manual II 130447-1 Re v . A ©2000 Crown International, Inc. À PRÉVENIR LE CHOC ÉLECTRIQUE N’ENLEVEZ PAS LES COUVERTURES. RIEN DES PARTIES UTILES À L’INTÉRIEUR. DÉBRANCHER LA BORNE AVANT D’OUVRIR LA MODULE EN ARRIÈRE. TO PREVENT ELECTRIC SHOCK DO NOT REMOVE TOP OR BOTTOM COVERS.
III 130447-1 Rev . A IQ-USM 810 Service Manual ©2000 Crown International, Inc. Revision Histor y Revision Number Date Comments Rev. A 04-2000 Initial Printing.
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V 130447-1 Rev . A IQ-USM 810 Service Manual ©2000 Crown International, Inc. T able of Contents 1 Introduction ............................................................................ 1-1 1.1 Introduction .........................................
IQ-USM 810 Ser vice Manual VI 130447-1 Re v . A ©2000 Crown International, Inc. 4.5 Standard Initial Conditions ........................................................ 4-2 4.6 Test Procedures .........................................................
Introduction 1-1 130447-1 Re v . A IQ-USM 810 Service Manual ©2000 Crown International, Inc. 1.1 Introduction This manual contains complete service infor mation on the Crown ® IQ-USM 810 Digital Processor/Digital Mixer .
IQ-USM 810 Service Manual 1-2 Introduction 130447-1 Re v . A ©2000 Crown International, Inc. Figure 1.1 IQ-USM 810 Front and Rear Views.
Specifications 2-1 130447-1 Rev . A IQ-USM 810 Service Manual ©2000 Crown International, Inc. 2 Specifications General Front P anel Controls: Front-panel switches select IQ Address, Baud Rate, factory default preset (P00), and any of 32 user -defined presets (P01–P32).
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©2000 Crown International, Inc. Circuit Theory 3-1 130447-1 Rev . A IQ-USM 810 Service Manual 3 Circuit Theor y 3.1 Overview This section explains operation of the IQ-USM 810 cir - cuitry . Please refer to the IQ-USM 810 Reference Manual and IQ for Windows help files for information about the IQ-USM 810 features and operation.
©2000 Crown International, Inc. IQ-USM 810 Ser vice Manual 3-2 Circuit Theor y 130447-1 Re v . A • Line: In Line mode, both the coupling capacitors (C104 & C105) and the series resistors (R103 & R104) are in the signal path.
©2000 Crown International, Inc. Circuit Theory 3-3 130447-1 Rev . A IQ-USM 810 Service Manual Figure 3.3 Input Analog Processing Circuitry (one channel).
©2000 Crown International, Inc. IQ-USM 810 Ser vice Manual 3-4 Circuit Theor y 130447-1 Re v . A Each DAC takes a 2 channel I 2 S 32-bit time-division multiplexed data audio stream fr om the SHARC PWA and conver ts it at a 24-bit, 48-kHz rate (Figur e 3.
©2000 Crown International, Inc. Circuit Theory 3-5 130447-1 Rev . A IQ-USM 810 Service Manual 3.5 SHARC Processing The SHARC PW A sits in the center of the chassis and is the DSP engine that provides all of the signal pr ocess- ing for the unit.
©2000 Crown International, Inc. IQ-USM 810 Ser vice Manual 3-6 Circuit Theor y 130447-1 Re v . A Figure 3.8 SHARC PWA Block Diagram The System Controller will display the er ror code, then begin the boot process again.
©2000 Crown International, Inc. Circuit Theory 3-7 130447-1 Rev . A IQ-USM 810 Service Manual The time allotted for the SHARC to process this audio data is 330us (16 samples x 48-kHz). At that point the next audio brick has been collected and is ready for processing.
©2000 Crown International, Inc. IQ-USM 810 Ser vice Manual 3-8 Circuit Theor y 130447-1 Re v . A bus and accesses SDRAM when it is available. The SHARC blocks access to the bus through the use of the SDLOCK pin during SDRAM transfers. SDRAM is utilized only for audio delay processing and has no firm- ware.
©2000 Crown International, Inc. Circuit Theory 3-9 130447-1 Rev . A IQ-USM 810 Service Manual 3.6.1 Control Processing The brain of the System Controller PW A is the Motor ola 68HC12 microcontr oller , U15. The 112pin QFP pinout is shown in Figure 3.
©2000 Crown International, Inc. IQ-USM 810 Ser vice Manual 3-10 Circuit Theor y 130447-1 Re v . A The HC12 fir mware uses a r eal time operating system (RTOS) to make ef ficient use of the HC12's processing capability .
©2000 Crown International, Inc. Maintenance 4-1 130447-1 Re v . A IQ-USM 810 Service Manual 4 Maintenance 4.1 General Information This chapter provides test pr ocedures to be used to verify operation of this IQ component. Minimum speci- fications for proof of performance are given with each procedur e.
©2000 Crown International, Inc. IQ-USM 810 Service Manual 4-2 Maintenance 130447-1 Re v . A 4.4 IQ Message String Syntax 4.4.1 Host to Device Messages The following syntax is used for host to device mes- sages: Send: XX XX XX XX XX ; Description XX: A byte of the message explicitly given in hexadeci- mal.
©2000 Crown International, Inc. Maintenance 4-3 130447-1 Re v . A IQ-USM 810 Service Manual . 4.6.6 HEAD ROOM / INPUT CLIP LEVEL Spec: < 1 % THD+N, with a +19.9 dBu input signal. Initial Conditions: Input signal: 1 KHz, +19.9 dBu. Procedure: V erify each main and AUX output meets spec.
©2000 Crown International, Inc. IQ-USM 810 Service Manual 4-4 Maintenance 130447-1 Re v . A tal Output 8 Off. Send: DA DT CT 80 5C 09 01 CS; Set Control Port Digi- tal Output 9 On. Send: DA DT CT C0 5C 09 00 CS; Set Control Port Digi- tal Output 10 Off.
©2000 Crown International, Inc. Maintenance 4-5 130447-1 Re v . A IQ-USM 810 Service Manual Send: DA DT CT C1 55 0A CS; Get Control Port Analog Input 12 Retur n String: DA DT AK CT C1 55 0C IN12 CS S.
©2000 Crown International, Inc. IQ-USM 810 Service Manual 4-6 Maintenance 130447-1 Re v . A Procedure: Set the clock to the current time with the clock write command. Send: DA DT CT 80 03 09 CK4 CK3 CK2 CK1 CS; Set real time clock Where CK1, CK2, CK3, and CK4 ar e the four bytes of the time code.
©2000 Crown International, Inc. Maintenance 4-7 130447-1 Re v . A IQ-USM 810 Service Manual 4.6.20 CHASSIS GROUND Spec: Ground conductor of the power inlet is connected to chassis ground. Note: This test to be completed after the complete product assembly .
©2000 Crown International, Inc. IQ-USM 810 Service Manual 4-8 Maintenance 130447-1 Re v . A 4.9 Display T est Patterns Figure 4.1 Display Test Patterns LED Display Enable/Data/Interface Input Gate Status Figure 4.1 shows display test patterns for the IQ-USM 810.
©2000 Crown International, Inc. Maintenance 4-9 130447-1 Re v . A IQ-USM 810 Service Manual 4.10 Error Codes Figure 4.2 IQ-USM 810 Error Codes E01 UART failed system contr oller power -on self test E.
©2000 Crown International, Inc. IQ-USM 810 Service Manual 4-10 Maintenance 130447-1 Re v . A will cause the IQ-USM 810 to automatically reboot. If the top cover is off the unit, switch S1 on the System Controller boar d (the long board with the rear panel DB9F and DB37M connectors) will reboot the unit.
©2000 Crown International, Inc. Parts 5-1 130447-1 Re v . A IQ-USM 810 Service Manual 5.1 General Information This chapter includes both a mechanical and electrical par ts list for this pr oduct. All serviceable parts and as- semblies will have a Crown Part Number (CPN) listed in this chapter .
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©2000 Crown International, Inc. Exploded View Parts 6-1 130447-1 Re v . A IQ-USM 810 Service Manual 6 Exploded View Parts 6.1 General Information This chapter includes a mechanical part list for this product. All serviceable parts and assemblies will have a Crown Part Number (CPN) listed in this chap- ter .
©2000 Crown International, Inc. IQ-USM 810 Service Manual 6-2 Exploded View P ar ts 130447-1 Re v . A Figure 6.1 Chassis Assembly.
©2000 Crown International, Inc. Exploded View Parts 6-3 130447-1 Re v . A IQ-USM 810 Service Manual Item Quantity Description Part # (CPN) 6.2 Chassis Assembly Refer to figure 6.
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Module and Schematic Information 7-1 130447-1 Re v . A IQ-USM 810 Service Manual ©2000 Crown International, Inc. 7.1 General Information The schematics refer enced and provided ar e repr e- sentative only . There may be slight variations between component to component.
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Module Parts 8-1 130447-1 Re v . A IQ-USM 810 Service Manual ©2000 Crown International, Inc 8 Module Parts 8.1 General Information This chapter includes electrical parts lists for this prod- uct. All serviceable par ts and assemblies will have a Crown Part Number (CPN) listed in this chapter .
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Module Parts 8-3 130447-1 Re v . A IQ-USM 810 Service Manual ©2000 Crown International, Inc PW A #126451-3 System Controller Module PWB #126346-5 Schematic #126451-3 Rev.
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IQ-USM 810 Service Manual 8-12 Module P ar t s 130447-1 Re v . A ©2000 Crown International, Inc. PWA #126451-3 Component Map (Component Side).
Module Parts 8-13 130447-1 Re v . A IQ-USM 810 Service Manual ©2000 Crown International, Inc PW A #126690-3 Input Module PWB #126689-3 Schematic #126690-3 Rev.
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Module Parts 8-31 130447-1 Re v . A IQ-USM 810 Service Manual ©2000 Crown International, Inc PW A #126693-4 Output Module PWB #126692-4 Schematic #126693-4 Rev.
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Module Parts 8-47 130447-1 Re v . A IQ-USM 810 Service Manual ©2000 Crown International, Inc PW A #126744-3 SHARC Module PWB #126743-4 Schematic #126744-3 Rev.
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Module Parts 8-59 130447-1 Re v . A IQ-USM 810 Service Manual ©2000 Crown International, Inc PW A #126747-3 Front Display Module PWB #126746-3 Schematic #126745 Rev.
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Module Parts 8-65 130447-1 Re v . A IQ-USM 810 Service Manual ©2000 Crown International, Inc PW A #128045-1 System Controller Module PWB #126346-5 Schematic #126323 Rev.
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Module Parts 8-87 130447-1 Re v . A IQ-USM 810 Service Manual ©2000 Crown International, Inc PW A #128047-4 SHARC Module PWB #126743-4 Schematic #126742 Rev.
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Module Parts 8-99 130447-1 Re v . A IQ-USM 810 Service Manual ©2000 Crown International, Inc PW A #128049-1 Input Module PWB #126689-3 Schematic #126688 Rev.
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©2000 Crown International, Inc. Schematic Diagrams 9-1 130447-1 Re v . A IQ-USM 810 Service Manual 9 Schematic Diagrams The schematics provided ar e repr esentative only . There may be slight variations between amplifier to amplifier . These schematics are intended to be used for troubleshooting purposes only .
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Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Crown Audio IQ-USM 810 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Crown Audio IQ-USM 810 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Crown Audio IQ-USM 810 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Crown Audio IQ-USM 810 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Crown Audio IQ-USM 810, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Crown Audio IQ-USM 810.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Crown Audio IQ-USM 810. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Crown Audio IQ-USM 810 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.