Manuals
/
Brands
/
Musical Instruments & Equipment
/
Music Mixer
/
Crown Audio
/
Musical Instruments & Equipment
/
Music Mixer
Crown Audio
IQ-USM 810
- page 122
1
122
172
172
Download
172 pages, 12.77 Mb
IQ-USM 810 Service Manual
8-84 Module Parts
130447-1 Rev. A
©2000 Crown International, Inc.
Contents
Main
Digital Processor / Digital Mixer
SERVICE MANUAL
Some models may be exported under the name Amcron.
Models: IQ-USM 810
CAUTION AVIS
WARNING
Page
Page
Table of Contents
1 Introduction ............................................................................ 1-1
4 Maintenance........................................................................... 4-1
Table of Contents
5 Parts Information................................................................... 5-1
9 Schematics ............................................................................ 9-1
1.1 Introduction
1.2 The IQ-USM 810
1 Introduction
Crown Customer Service
Page
2 Specifications
General
RS232 Data Communication
Crown Bus Data Communication
Audio
Page
3 Circuit Theory
3.1 Overview
3.2 Power Supply
3.3 Input
3.3.1 Input Analog Processing
3.3.2 Clock Signals
3.3.3 A/D Conversion
Page
3.4.3 Output Analog Processing
3.3.4 DC Voltages
3.4.2 DAC Conversion
3.4 Output
3.4.1 Clock Buffers
3.5 SHARC Processing
3.5.1 +3.3V Power Supply
3.5.2 Clocks
3.5.3 Reset
3.5.4 System Controller Interface
3.5.5 PLDs
3.5.6 Bus Arbitration
3.5.7 Bus Utilization
3.5.8 DSP Processing
Page
3.5.9 Audio Routing
3.6 System Controller
3.6.1 Control Processing
3.6.2 RS232
3.6.3 Crown Bus Loop
3.6.4 Real Time Clock
3.6.5 Front Panel
3.7 Front Display
4 Maintenance
4.1 General Information
4.2 Definitions
4.3 Required Test Equipment
WARNING
4.4 IQ Message String Syntax
4.4.1 Host to Device Messages
4.4.2 Device to Host Messages
4.5 Standard Initial Conditions
4.6 Test Procedures
4.6.6 HEAD ROOM / INPUT CLIP LEVEL
4.6.7 INPUT POTENTIOMETER
4.6.8 PHANTOM SUPPLY
4.6.9 CONTROL PORT OUTPUT VOLTAGE PINS
4.6.10 CONTROL PORT LOGIC INPUTS
4.6.12 CONTROL PORT ANALOG INPUTS
4.6.13 DISPLAY TEST
4.6.14 PUSHBUTTON TEST
4.6.15 REAL TIME CLOCK
4.6.16 IQ BUS MASTER CONTROL
4.6.17 IQ BUS DROPOUT RELAY OPERATION
4.6.18 IQ BUS HUB / DAISY CONNECTIONS
4.6.19 SHIPPING STATE RESTORATION
4.6.20 CHASSIS GROUND
4.7 Typical Measurements
4.8 Test/Debug Objects
4.9 Display Test Patterns
4.10 Error Codes
4.11 Troubleshooting FAQs
Page
5.1 General Information
5.2 Ordering and Receiving Parts
5.2.1 Terms
5.2.2 Shipment
5 Parts
Crown Customer Service
Page
6 Exploded View Parts
6.1 General Information
Page
6.2 Chassis Assembly
Page
7.1 General Information
7.2 IQ-USM 810 Modules
7.2.1 Front Panel Display PWA:
7.2.2 System Controller PWA:
7 Module and Schematic Information
Page
8 Module Parts
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
9 Schematic Diagrams