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Introduction 1-1
130447-1 Rev. A
IQ-USM 810 Service Manual
©2000 Crown International, Inc.
1.1 Introduction
This manual contains complete service information
on the Crown
®
IQ-USM 810 Digital Processor/Digital
Mixer. It is designed to be used in conjunction with
the Reference Manual; however, some important in-
formation is duplicated in this Service Manual in case
the Reference Manual is not readily available.
NOTE: THE INFORMATION IN THIS MANUAL IS
INTENDED FOR USE BY AN EXPERIENCED TECH-
NICIAN ONLY!
1.2 The IQ-USM 810
The Crown IQ-USM 810 is an 8x10 mixer/processor
that provides unique dual input processing paths. As
an IQ
®
component, it can be controlled by an IQ Sys-
tem
®
, and with its distributed intelligence
™
capability,
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.
The dual input processing paths include a full comple-
ment of signal processing features, including ad-
vanced algorithms for gating, auto-leveling, filtering,
compression and automixing.
A full 8x8 Matrix Mixer allows any combination of rout-
ing and mixing from any input to any output. The Ma-
trix Mixer outputs are routed to the two Main Audio
Outputs and eight AUX Audio Outputs. The Main and
AUX Audio Output sections further process the sig-
nal with individually adjustable signal delay and fil-
ters along with an Ambient-Leveler and a high perfor-
mance Output Limiter for system protection.
A Multi-Function Control Port implements analog and
digital I/O for control and monitor by simple potenti-
ometer and switch wall controllers and indicator pan-
els.
All of the IQ-USM 810 parameters are backed up via
reliable FLASH memory. System configurations may
be stored for recall from any of thirty-two system pre-
sets from the front panel control or via IQ for Windows
software.
1.3 Warranty
Each Reference Manual contains basic policies as
related to the customer. In addition, it should be stated
that this service documentation is meant to be used
only by properly trained personnel. Because most
Crown products carry a 3-Year Full Warranty (includ-
ing round trip shipping within the United States), all
warranty service should be referred to the Crown Fac-
tory or Authorized Warranty Service Center. See the
applicable Reference Manual for warranty details. To
find the location of the nearest Authorized Warranty
Service Center or to obtain instructions for receiving
Crown Factory Service, please contact the Crown
Technical Support Group (within North America), or
your Crown/Amcron Importer (outside North America).
If you are an Authorized Warranty Service Center and
have questions regarding the warranty of a product,
please contact the Crown Factory Service Manager
or the Crown Technical Support Group.
1 Introduction
Crown Customer Service
Technical Support Group
Factory Service
Parts Department
Mailing Address: P.O. Box 1000, Elkhart IN 46515
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