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Table of Contents
- 1 System Concepts
- 2 Hardware Description
- 3 Rack Mounting
- 4 Software Description
- 5 Software Installation
- 6 Digital Input
- 7 System Calibration
- 8 Troubleshooting
- 9 Specifications
- 10 Monitor Loudspeaker
- 11 How to Contact QSC Audio Products
- 12 Warranty Information
- 13 Product Warranty
- Download this manual
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Table of Contents
Related Manuals for QSC DCM 10
Summary of Contents for QSC DCM 10
- Page 1 DCM Series Digital Cinema Monitor & Crossover System User Manual DCM 10 DCM 10D DCM 30 DCM 30D *TD-000265-00* TD-000265-00-A...
- Page 2 6- Clean only with a dry cloth. 7- Do not block any ventilation openings. Install in accordance with QSC Audio Product’s instructions. Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised.
- Page 3 X: Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used for this part is above the limit requirement in SJ/T11363-2006. QSC® is a registered trademark of QSC Audio Products, Inc., DCM Manager is a trademark of QSC Audio Products, Inc. IBM is a registered trademark of IBM Corporation; Pentium is a registered trademark of Intel Corporation.
- Page 4 Display resolution of 1024 x 768, 16 colors minimum USB port To complete your Cinema System, you will also need a cinema processor, QSC Audio’s DCA amplifiers, loudspeakers, and necessary cables. Unpacking The DCM is highly durable and carefully packaged. We recommend you inspect the unit carefully after removing it from the packaging, as occasion- ally there may be damage due to some unfortunate incident during shipment.
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Page 5: System Concepts
System Concepts Installer Features: •Provides Monitor and Crossover functions in one box. •Minimizes the amount of cabling required. Only 1 cable per amplifier channel pair. •Minimizes setup time, particularly in megaplexs with similar rooms. •Provides loudspeaker setting database for most common theater loudspeaker brands and models. •Indicates if something is wrong with the sound system and provides diagnostic feedback. - Page 6 A separate surround channel bass management feature allows the extremely low frequency surround channel program content to be filtered from the surround channels and summed for routing to the AUX DataPort output. Illustrations- Front Panels DCM 10/10D DCM30/30D 1- Power switch 2- Monitor output loudspeaker 3- Power “on”...
- Page 7 Illustrations- Rear Panels DCM 10 and DCM 10D (Digital Inputs only on DCM 10D model) DCM 30 and DCM 30D (Digital Inputs only on DCM 30D model) 1- Firmware update mode select 2- USB port 3- External loudpseaker connector and select...
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Page 8: Hardware Description
Hardware Description Front Panel The front panel of the DCM series resembles traditional cinema monitor products. This provides the projectionist a well known and easy to understand interface. Power Switch: The power on/off switch is the master control for the DCM and the amplifiers connected to it. Amplifiers must be connected to the DCM with QSC DataPort cables and amplifier power switches must physically be in the “on”... - Page 9 Hardware Description (continued) NOTE: The DCM 10 and DCM 10D have one output for each surround zone and 4 sub outputs. NOTE: All combining of the individual frequency outputs (2-way, 3-way, or 4-way) is done automatically, so all front panel moni- toring is of a full frequency signal.
- Page 10 Technical Services Group. Stock lengths include 1, 2, 3, 4, 5, 6, 10, and 20 feet and are designated DPC-x (where “x” is the length in feet). The maximum output configuration of the DCM 10/10D is a 6 ch / 2-way. The maximum output configuration of the DCM 30/30D is an 8 ch / 4-way. In addition, many parallel outputs are provided for additional flexibility.
- Page 11 BYPASS CROSSOVER MODE Switch: The BYPASS CROSSOVER MODE switch routes the center channel input signal through the 2-way or 3-way bypass crossover on the DCM 30/30D. On the DCM 10/10D, the center channel is routed through the 2-way bypass crossover or not processed at all (passive bypass).
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Page 12: Rack Mounting
Mounting Rack Mounting When rack mounting the DCM, secure the DCM to the rack rails using four machine screws and washers of the proper size. Most US rack equipment accepts #10-32 machines screws; length used depends upon application. The DCM will require 3-RU (rack units) of space. -
Page 13: Software Description
Software Description DCM Manager Windows Software To access the functions of the DCM hardware, you must use QSC’s DCM Manager 2007 control software. A USB cable is used to connect your PC to the DCM. One of the computer’s available USB ports provides communications between the DCM Manager software and the DCM hardware. - Page 14 Connections Making the required connections to the DCM is simple. Just make sure that you have all of the correct cables. “Mass-termination” connectors are used wherever possible. This reduces installation time from hours to minutes and makes any required connection changes fast, easy, and reliable.
- Page 15 Connections (continued) DataPort The QSC DataPort connection carries input signals, amplifier output monitoring signals, remote amplifier power on/ standby control, amplifier temperature, and more, all on one cable. Each DataPort is clearly marked indicating which channel’s amplifier it should be connected to. Follow the back panel labelling.
- Page 16 Connections (continued) MAIN ANALOG INPUT Pinout Configuration: 25-pin SubD male to 25-pin SubD male. Pin # Signal Description Chassis Ground Left + Left Center - Chassis Ground Center + Right Center - Chassis Ground Right + Chassis Ground Surround Left - Surround Right - Subwoofer - Chassis Ground...
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Page 17: Digital Input
Connections (continued) DIGITAL INPUT Pinout Configuration: 25-pin SubD male to 25-pin SubD male. Pin # Signal Description (not used) (not used) (not used) (not used) (not used) (not used) AES1 (L/R) OUT + AES3 (Ls/Rs) OUT + Chassis Ground X1/2 OUT + Chassis Ground (not used) (not used) - Page 18 Connections (continued) Powered Subwoofer Screw terminal connections make it possible to send a balanced signal to a powered subwoofer. This signal is balanced and the circuitry is designed for long cable runs from the projection booth to the theater screen. The high-pass filtering and level adjustments are done by the DCM unit.
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Page 19: System Calibration
Consult an acoustic consultant for the proper calibration method, or experi- ment until the sound from the screen together with sound from the surround loudspeakers sounds more “clear”. DCM 10/10D DCM 30/30D... -
Page 20: Troubleshooting
Troubleshooting If the DCM Manager program is unable to communicate with the DCM hardware... • Verify the USB cable connections. Re-seat each cable-end. • Try a known-good USB cable, if possible. • Confirm the USB port you are using is operating properly. Windows has provisions for checking hardware in the Windows Control Panel. - Page 21 Troubleshooting (continued) If theater audio is distorted ... • Verify that the DCM Input Clip LED is not lit. If it is, the cinema processor output signal needs to be turned down. •If any of the amplifier CLIP warning LEDs are illuminating, the output level of the DCM must be reduced or amplifier input sensi- tivity must be reduced.
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Page 22: Specifications
Specifications DCM Inputs, Main Analog, Surround EX Input Stage Type Impedance Maximum Input Level A-to-D Conversion DCM Inputs, Digital (AES/EBU) Input Type Input Impedance Input Sample Rate DataPort Outputs Output Adjustment Dynamic Range THD+N at +12 dBu Input Level Frequency Response D-to-A Conversion Filter Topology Crossover Type... -
Page 23: Monitor Loudspeaker
FCC Class B IEC style detachable cord receptacle Type-A (host) to Type-B USB 1.1 cable 25-pin D-sub female receptacle DCM 10/10D Eight 15-pin D-sub HD female receptacles DCM 30/30D Nineteen 15-pin D-sub HD female receptacles screw terminal screw terminals screw terminals... -
Page 24: How To Contact Qsc Audio Products
Warranty Disclaimer (USA only; other countries, see your dealer or distributor) Disclaimer QSC Audio Products, Inc. is not liable for any damage to loudspeakers, amplifiers, or any other equipment that is caused by negligence or improper installation and/or use of this cinema product.