QSC DCM series Manuel utilisateur
DCM Series
Digital Cinema Monitor & Crossover System
U S E R M A N U A L
The DCM hardware unit and DCM Commander software are the property of QSC Audio Inc. Information in
this document is subject to change without notice and does not represent a commitment on the part of QSC
Audio. The software described here is furnished under a licensing agreement. It is against the law to copy
the software on any medium except as specifically allowed in the licensing agreement.
DCM Commander is a trademark of QSC Audio Products, Inc; Windows and Windows 95 are trademarks of
Microsoft Corporation; IBM is a registered trademark of IBM Corporation; Pentium is a registered trade-
mark of Intel Corporation.
1999 QSC Audio Inc. All rights reserved. Printed in USA.
Document Number 600019-A
I. Introduction ................................................................................ 1
II. System Requirements .................................................................... 2
III. Package Contents ....................................................................... 3
III. System Concepts ........................................................................ 4
A. System Design Features ................................................. 4
1. QSC Amplifier Dataports ............................................. 4
2. Programmable routing and crossover settings ........................... 5
3. DSP processing ..................................................... 5
4. Speaker Database ................................................... 5
5. Fault Analysis ...................................................... 5
6. Password Security .................................................. 5
7. Emergency Bypass .................................................. 6
8. Surround Insert Connections (Dolby SA-10).............................. 6
9. Active Surround Ready ............................................... 6
Front and Rear Panel Drawings ............................................. 7
IV. DCM Hardware Description ........................................................... 12
A. Frontpanel Features ..................................................... 12
1. Power On/Off ...................................................... 12
2. Audio Monitoring ................................................... 12
3. Diagnostics / Indicators .............................................. 13
4. Test Jacks ......................................................... 14
5. Emergency Bypass .................................................. 14
B. Rear Panel Features ..................................................... 14
1. Amplifier Dataports ................................................. 15
2. From Processor Output ............................................... 14
3. RS-232 Connection ................................................. 15
4. Surround Insert ..................................................... 15
5. Emergency Bypass Levels ............................................ 15
6. Terminal Strip Connections ........................................... 16
7. Power Input ........................................................ 16
V. DCM Commander Windows PC Software ............................................ 17
A. System Control Overview ................................................ 17
B. Software Installation .................................................... 17
C. Starting The Program .................................................... 17
D. Working with Configuration Files .......................................... 17
1. Your First Configuration File .......................................... 17
2. Editing a Configuration File ........................................... 18
E. Main Control Screen ..................................................... 19
1. File ............................................................... 19
2. Communications .................................................... 20
i. Connect / Disconnect ............................................ 20
ii. Get Configuration from DCM ...................................... 20
iii. Write Configuration to DCM ...................................... 20
iv. Serial Port ..................................................... 20
3. Configuration ....................................................... 20
i. General Configurations ........................................... 20
a. General Info ................................................ 20
b. General Config .............................................. 21
c. Installed Outputs ............................................ 21
c. Surround ................................................... 22
d. Security ................................................... 22
ii. Amp and Speaker Configuration Settings ........................... 23
a. Amplifier Models ........................................... 23
b. Speaker Models ............................................ 24
c. Speaker Arrangement ........................................ 25
d. Impedence Limits ........................................... 26
iii. Speaker Database ............................................... 27
a. Default & Custom Database .................................. 27
iv. Monitor Gain Levels ............................................. 27
4. Crossover .......................................................... 28
i. DSP Settings .................................................... 28
a. Screen Signal Path .......................................... 28
b. Screen Settings ............................................. 29
i. Sub DSP Settings ................................................ 30
a. Sub Signal Path ............................................. 30
b. Sub Settings ............................................... 31
ii. Mute Settings .................................................. 32
iii. Fault Diagnostics ............................................... 32
5. Help .............................................................. 33
i. About .......................................................... 33
ii. Contents ....................................................... 33
F. DCM 1st Time Troubleshooting ............................................ 34
1. No PC to DCM-1 Communications ..................................... 34
2. No audio from front panel monitor speaker .............................. 34
3. Some front panel LEDs don't light ..................................... 34
VI. System Installation ...................................................................... 35
A. System Hardware Connections ............................................ 35
1. Required Cables Overview ............................................ 35
2. Power Connection ................................................... 35
3. Control Computer Connection ......................................... 35
4. DataPort Connections ................................................ 35
5. Processor Connection ................................................ 35
6. Hearing Impaired Connection ......................................... 36
7. Powered Subwoofer Connection ....................................... 36
8. Surround Insert Connection ........................................... 36
B. System Calibration (typical) ............................................... 36
1. Theater - audio level adjustments ..................................... 37
2. Emergency Bypass levels ............................................. 37
3. Monitoring - audio mix adjustments .................................... 37
C. System Calibration (advanced) ............................................ 37
1. Speaker Frequency Adjustments ....................................... 37
2. Setting Delay Times ................................................. 37
D. System Installation Troubleshooting ....................................... 39
1. If no sound in the Theater... ........................................... 39
2. If one audio channel is missing... ...................................... 39
3. If theater audio is distorted... ......................................... 39
4. If switching to bypass does not restore sound... .......................... 39
Appendix 1: Cable Details - Pinouts ........................................................ 41
Appendix 2: DCM Specifications ........................................................... 45
Appendix 3: Address & Telephone Information ............................................. 47
II.INTRODUCTION
The QSC Audio DC series (together with QSC DCA amplifiers) is designed to perform all of the electronic
functions required for the audio portion of a cinema playback system except for the cinema processor unit
(for example, Dolby, Sony, or dts) and the speakers.
The DCM series consists of one of three hardware units (DCM-1, DCM-2, and DCM-3) and the PC based
control software called the DCM Commander. The DCM-1 supports a typical Dolby 6 ch. 2-way system. The
DCM-2 supports a typical Dolby 6 ch. 2-way or 3-way system, and the DCM-3 supports a Sony 8 ch 2-way or
3-way system. These systems include many outputs which are paralled to allow for maximum theater con-
nection flexibility.
Notice that the DCM series takes advantage of the DCA amplifier DataPorts to allow extremely easy and
reliable connection to all of the amplifiers, with all inputs and monitoring signals being connected by one
low cost, mass termination cable. This cabling system allows a QSC cinema equipment rack to be wired up
much faster than traditional XLR or barrier strip termination products!
Another critical feature is the ability to download standard or custom configuration adjustments via the se-
rial port. For example, in a 15 theater megaplex with similar rooms and equipment, an installation techni-
cian can calibrate a DCM unit to the appropriate speakers and room configuration ONE TIME, and then
load these settings into the other 14 DCM units and be finished!
We are extremely proud of many of the "ground breaking" features contained within these products.
Thank you for your interest!
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III.SYSTEM REQUIREMENTS
DCM Commander software is designed to control only one DCM hardware unit at a time. In order to test
the functionality of this software together with the DCM hardware unit, you must have at least the
following:
A QSC DCM Digital Cinema Monitor unit
The DCM Commander software diskettes or CDROM
An IBM-compatible PC with at least a 486 (or equiv) processor
Windows 95 or Windows 98
Minimum 16MB of RAM
Minimum 1MB of available hard disk storage space
A 3.5" 1.44MB floppy drive ro CDROM drive (depending on software provided)
An available RS-232 serial port
A display capable of at least 640X480 resolution in 16 colors.
A standard DB9 RS-232 cable (male to female)
To complete a full Cinema System, you will also need a cinema processor, QSC DCA amplifiers, speakers,
and cables.
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IV.PACKAGE CONTENTS
Open the box and remove the contents. You will find the following items:
This user manual
An envelope containing the DCM Commander installation diskettes (or CDROM) with the
software license agreement
A linecord for connection to AC power
The DCM hardware unit main assembly (either a DCM-1, or a DCM-2, or a DCM-3)
If anything is missing, immediately contact your salesman.
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