Crown IQ-USM 810 Service Manual
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Crown IQ-USM 810 Service Manual

Ultra series digital processor / digital mixer
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Digital Processor / Digital Mixer
SERVICE MANUAL
Models:
IQ-USM 810
Some models may be exported under the name Amcron.
®
©2000 by Crown International, Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.S.A.
Telephone: 219-294-8000. Trademark Notice: Distributed Intelligence™ and IQ for Windows™
are trademarks and Crown
, IQ
, and IQ System
are registered trademarks of Crown
®
®
®
International, Inc. Other trademarks are the property of their respective owners.
130447-1
04-00
Rev. A

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Summary of Contents for Crown IQ-USM 810

  • Page 1 Digital Processor / Digital Mixer SERVICE MANUAL Models: IQ-USM 810 Some models may be exported under the name Amcron. ® ©2000 by Crown International, Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.S.A. Telephone: 219-294-8000. Trademark Notice: Distributed Intelligence™ and IQ for Windows™...
  • Page 2 IQ-USM 810 Service Manual The information furnished in this manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible situation which may arise during installation, operation or maintenance. If you need special assistance beyond the scope of this manual, please contact the Crown Technical Support Group.

  • Page 3: Revision History

    IQ-USM 810 Service Manual 130447-1 Rev. A Revision History Comments Revision Number Date Rev. A 04-2000 Initial Printing ©2000 Crown International, Inc.
  • Page 4 130447-1 Rev. A IQ-USM 810 Service Manual This page intentionally left blank ©2000 Crown International, Inc.

  • Page 5: Table Of Contents

    130447-1 Rev. A 1 Introduction ... 1-1 1.1 Introduction ... 1-1 1.2 The IQ-USM 810 ... 1-1 1.3 Warranty ... 1-1 2 Specifications ... 2-1 3 Circuit Theory ... 3-1 3.1 Overview ... 3-1 3.2 Power Supply ... 3-1 3.3 Input ... 3-1 3.3.1 Input Analog Processing ...
  • Page 6 IQ-USM 810 Service Manual 4.5 Standard Initial Conditions ... 4-2 4.6 Test Procedures ... 4-2 4.7 Typical Measurements ... 4-7 4.8 Test/Debug Objects ... 4-7 4.9 Display Test Patterns ... 4-8 4.10 Error Codes ... 4-9 4.11 Troubleshooting FAQs ... 4-9 5 Parts Information...

  • Page 7: Introduction

    , and with its distributed intelligence ® continue to operate even when an IQ System is not connected. The IQ-USM 810 can also act as a sys- tem interface to other IQ components. The IQ-USM 810 features high-quality 24-bit A/D and D/A converters along with 240MIPS of full 32-bit float- ing point DSP for optimum dynamic range.
  • Page 8 130447-1 Rev. A IQ-USM 810 Service Manual Figure 1.1 IQ-USM 810 Front and Rear Views 1-2 Introduction ©2000 Crown International, Inc.

  • Page 9: Specifications

    AC power is being supplied. An amber front-panel Data Signal Presence Indicator (DATA) flashes whenever commands ad- dressed to the IQ-USM 810 are received. A green front-panel Interface indicator lights when the IQ-USM 810 is being used as system interface. A three-digit digital display indicates the IQ-USM 810’s initialization...
  • Page 10 130447-1 Rev. A IQ-USM 810 Service Manual This page intentionally left blank 2-2 Specifications ©2000 Crown International, Inc.

  • Page 11: Circuit Theory

    130447-1 Rev. A 3 Circuit Theory 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.

  • Page 12: Clock Signals

    IQ-USM 810 Service Manual • Line: In Line mode, both the coupling capacitors (C104 & C105) and the series resistors (R103 & R104) are in the signal path. The capacitors block the phantom voltage from the input while the se- ries resistors work as a voltage divider with R105 &...
  • Page 13 130447-1 Rev. A IQ-USM 810 Service Manual Figure 3.3 Input Analog Processing Circuitry (one channel) Circuit Theory 3-3 ©2000 Crown International, Inc.

  • Page 14: Dc Voltages

    IQ-USM 810 Service Manual used. This data is routed to the SHARC PWA for pro- cessing (ADC1-4). Figure 3.4 shows the audio data and its relationship to the clock signals. 3.3.4 DC Voltages The Input PWA receives +/–15V and +5V from the Sys- tem Controller.

  • Page 15: Sharc Processing

    SHARC processors occurs through a series of latches (U12-22) that provide address and data. PLD U23 re- ©2000 Crown International, Inc. IQ-USM 810 Service Manual ceives commands from the System Controller (SH_A0- 2, \HCS, HR/W) to load data and addresses into these latches.

  • Page 16: Plds

    IQ-USM 810 Service Manual The System Controller will display the error code, then begin the boot process again. By watching the boot process on the front display, the error code can be read at the end of the boot process before the next boot be- gins.
  • Page 17 SDRAM provides a high speed synchronous memory resource. Only the four SHARC processors have ac- cess to SDRAM and they are responsible for the ac- cess and maintenance of it. Each SHARC monitors the IQ-USM 810 Service Manual 667us 1667us 520us...

  • Page 18: Audio Routing

    IQ-USM 810 Service Manual 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.

  • Page 19: Control Processing

    NORM position. The HC12 provides all of the processing for the control of the IQ-USM 810. U16 provides sensing of the +5V power supply and brings the HC12 out of reset once the supply is stable. Switch S1 allows resetting of the controller externally.

  • Page 20: Rs232

    Crown Bus loop via U19A. Relay K1 provides paths to the I/O circuitry while the IQ-USM 810 is powered. When the unit is turned off, the relay allows the Crown Bus loop to pass through the unit to prevent Crown Bus loop communication from being interrupted.

  • Page 21: Maintenance

    • DA: IQ Ucode Device Address. A part of the Ucode string that identifies it as pertaining to a particular device. The DA for the IQ-USM 810 is set by the front panel controls. At first power up the IQ-USM 810 defaults to address $01.

  • Page 22: Message String Syntax

    IQ-USM 810 Service Manual 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.
  • Page 23 Input 1 Return String: DA DT AK CT 80 50 0C IN1 CS ©2000 Crown International, Inc. IQ-USM 810 Service Manual Send: DA DT CT C0 50 0A CS; Get Control Port Digital Input 2 Return String: DA DT AK CT C0 50 0C IN2 CS Send: DA DT CT 80 51 0A CS;...
  • Page 24 IQ-USM 810 Service Manual 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.
  • Page 25 Use one of the following two methods to test the three front panel pushbuttons: Method 1 (Manual Verification) Hold in the “SEL” button and verify the IQ-USM 810 display cycles between the three display modes (pre- set, address, and baud rate).
  • Page 26 IQ response. 4.6.19 SHIPPING STATE RESTORATION Spec: The IQ-USM 810 is returned to the factory de- faults. Note: This section may be skipped when testing a service unit if it is known that the customer wishes to retain the mixers settings and presets.

  • Page 27: Typical Measurements

    Ucode protocol). With this object set, no IQ bus, communication passes through $C0 $05 the IQ-USM 810 Crown bus port. Send: DA DT CT C0 05 09 01 CS; to master the IQ Bus, open the loop Response: None Send: DA DT CT C0 05 00 CS;...

  • Page 28: Display Test Patterns

    130447-1 Rev. A IQ-USM 810 Service Manual 4.9 Display Test Patterns Figure 4.1 shows display test patterns for the IQ-USM 810. For each display section, the sequence starts at the top and cycles to the bottom, and then repeats. LED Display...

  • Page 29: Error Codes

    After the System Controller processor successfully boots all four DSP processors, audio processing is allowed to begin. Q. When I power up the IQ-USM 810, it continues to boot. What's up? A. If the System Controller processor encounters an error ©2000 Crown International, Inc.
  • Page 30 Q. How should I set the baud rate on the IQ-USM 810? A. The baud rate for the RS232 interface is adjustable and is accessed by the front panel (see the Reference Manual for information on settng the baud rate).

  • Page 31: General Information

    Crown Customer Service Technical Support Group Factory Service Parts Department Shipping Address: Plant 2 S. W. 1718 W. Mishawaka Rd., Elkhart IN 46517 Phone: (219) 294-8200 Toll Free: (800) 342-6939 Fax: (219) 294-8301 http://www.crownaudio.com IQ-USM 810 Service Manual Parts 5-1...
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  • Page 33: Exploded View Parts

    IQ-USM 810 Service Manual 130447-1 Rev. A 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.
  • Page 34 130447-1 Rev. A IQ-USM 810 Service Manual Figure 6.1 Chassis Assembly 6-2 Exploded View Parts ©2000 Crown International, Inc.

  • Page 35: Chassis Assembly

    4-40 x .37 PLTHD PH MSCR BZ 4-40 x .312 TAPTITE PH PN BZ COVER, USM810 CNET PC FILTER, RFI W/IEC SOCKET 3A BACK PANEL, USM810 PC/PP LABEL, USM810 FUSE IQ-USM 810 Service Manual Part # (CPN) 126726-1 127226-1 126725-6 A11410-E025N...
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  • Page 37: Module And Schematic Information

    PWA stands for Printed Wire Assembly. This is the com- pleted circuit board with all components assembled. PWB stands for Printed Wire Board. This is the circuit board only, without components. 7.2 IQ-USM 810 Modules 7.2.1 Front Panel Display PWA: 126747-3 Display PWA on 126746-3 PWB.
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  • Page 39: Module Parts

    IQ-USM 810 Service Manual 130447-1 Rev. A 8 Module Parts 8.1 General Information This chapter includes electrical parts lists for this prod- uct. All serviceable parts and assemblies will have a Crown Part Number (CPN) listed in this chapter. The parts listed are current as of the date printed.
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  • Page 41: Pwa 126451-3

    IQ-USM 810 Service Manual 130447-1 Rev. A PWA #126451-3 System Controller Module PWB #126346-5 Schematic #126451-3 Rev. A Module Parts 8-3 ©2000 Crown International, Inc...
  • Page 42 130447-1 Rev. A IQ-USM 810 Service Manual 8-4 Module Parts ©2000 Crown International, Inc.
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  • Page 50 130447-1 Rev. A IQ-USM 810 Service Manual PWA #126451-3 Component Map (Component Side) 8-12 Module Parts ©2000 Crown International, Inc.

  • Page 51: Pwa 126690-3

    130447-1 Rev. A ©2000 Crown International, Inc PWA #126690-3 Input Module PWB #126689-3 Schematic #126690-3 Rev. A IQ-USM 810 Service Manual Module Parts 8-13...
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  • Page 69: Output Module

    IQ-USM 810 Service Manual 130447-1 Rev. A PWA #126693-4 Output Module PWB #126692-4 Schematic #126693-4 Rev. A Module Parts 8-31 ©2000 Crown International, Inc...
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  • Page 85: Pwa 126744-3

    IQ-USM 810 Service Manual 130447-1 Rev. A PWA #126744-3 SHARC Module PWB #126743-4 Schematic #126744-3 Rev. A Module Parts 8-47 ©2000 Crown International, Inc...
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  • Page 97 IQ-USM 810 Service Manual 130447-1 Rev. A PWA #126747-3 Front Display Module PWB #126746-3 Schematic #126745 Rev. A Module Parts 8-59 ©2000 Crown International, Inc...
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  • Page 103: Pwa 128045-1

    IQ-USM 810 Service Manual 130447-1 Rev. A PWA #128045-1 System Controller Module PWB #126346-5 Schematic #126323 Rev. A Module Parts 8-65 ©2000 Crown International, Inc...
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  • Page 113: Pwa 128047-3

    IQ-USM 810 Service Manual 130447-1 Rev. A PWA #128047-3 SHARC Module PWB #126743-4 Schematic #126742 Rev. C Module Parts 8-75 ©2000 Crown International, Inc...
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  • Page 125: Pwa 128047-4

    IQ-USM 810 Service Manual 130447-1 Rev. A PWA #128047-4 SHARC Module PWB #126743-4 Schematic #126742 Rev. D Module Parts 8-87 ©2000 Crown International, Inc...
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  • Page 137: Pwa 128049-1

    IQ-USM 810 Service Manual 130447-1 Rev. A PWA #128049-1 Input Module PWB #126689-3 Schematic #126688 Rev. A Module Parts 8-99 ©2000 Crown International, Inc...
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  • Page 155: Pwa 128051-3

    IQ-USM 810 Service Manual 130447-1 Rev. A PWA #128051-3 Output Module PWB #126692-4 Schematic #126691 Rev. C Module Parts 8-117 ©2000 Crown International, Inc...
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  • Page 171: Schematic Diagrams

    IQ-USM 810 Service Manual 130447-1 Rev. A 9 Schematic Diagrams The schematics provided are representative only. There may be slight variations between amplifier to amplifier. These schematics are intended to be used for troubleshooting purposes only. 126323 Rev. A 126688 Rev. A 126691 Rev.
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