Page 2 - Important Safety Instructions & Explanation of symbols
Important Safety Instructions & Explanation of symbols 1- Read these instructions.2- Keep these instructions.3- Heed all warnings.4- Follow all instructions.5- Do not use this apparatus near water.6- Clean only with a dry cloth.7- Do not block any ventilation openings. Install in accordance with...
Page 4 - Introduction; Fast Setup with Easy Wiring; Unpacking; The QSC shipping box should contain:; Table 1: Supported Formats By Model; Format
Introduction Thank you and congratulations on your purchase of the QSC DCM Digital Cin-ema Monitor. This product represents the state-of-the-art for cinema-based signal processing and monitoring functions in a single, integrated system. Designed to compliment QSC’s DCA (Digital Cinema Amplifier) Ser...
Page 5 - System Concepts; Projectionist Features:
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 theat...
Page 6 - . These are for connection to an external; IN SPR; and the; EXTERNAL SPKR; terminal routes audio to the DCM’s inter-; AUX; Illustrations- Front Panels
1- Power switch2- Monitor output loudspeaker3- Power “on” and diagnostics indicator LEDs4- Monitor source selector buttons 5- Amplifier/Processor selector button6- Monitor output test points7- Bypass switch and indicator LED8- Monitor volume control 9. Alternate EQ Select- Connecting this terminal t...
Page 7 - Illustrations- Rear Panels; DCM 10 and DCM 10D (Digital Inputs only on DCM 10D model)
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 select2- USB port3- External loudpseaker connector and select4- Subwoofer output5- Alternate equalization select input6- Auxiliary au...
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....
Page 12 - Mounting; Rack Mounting; To rack mount your DCM:; Supporting the Rear of the DCM
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. To rack mount yo...
Page 13 - Software Description; DCM Manager Windows Software; Exit any programs that may be running.; Starting the Program
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 a...
Page 14 - Connections; Required Cables; USB Type A to Type B device cable.; AC Mains
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 - AC Standby Control; Cinema Processor Connection
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 con...
Page 16 - MAIN ANALOG INPUT; Signal Description; SURROUND EX INPUT
Connections (continued) MAIN ANALOG INPUT Pinout Configuration: 25-pin SubD male to 25-pin SubD male. Pin # Signal Description 1 Chassis Ground 2 Left + MAIN ANALOG INPUT 3 Left Center - 4 Chassis Ground 5 Center + 6 Right Center - 7 Chassis Ground 8 Right + 9 Chassis Ground 10 Surround Left - 11 Su...
Page 17 - DIGITAL INPUT; Hearing Impaired
Connections (continued) DIGITAL INPUT Pinout Configuration: 25-pin SubD male to 25-pin SubD male. Pin # Signal Description 1 (not used) 2 (not used) DIGITAL INPUT 3 (not used) 4 (not used) 5 (not used) 6 (not used) 7 AES1 (L/R) OUT + 8 AES3 (Ls/Rs) OUT + 9 Chassis Ground 10 X1/2 OUT + 11 Chassis Gro...
Page 19 - System Calibration; Loudspeaker Frequency adjustments
System Calibration When installing a typical cinema sound system, most of the calibration involves the Cinema Processor. Refer to the user manual for the Cinema Processor that you are using. WARNING: Turn the Gain Controls on all of the system’s amplifiers all the way down until crossover settings a...
Page 20 - Troubleshooting; • Verify the amplifiers outputs by monitoring the AMPS outputs.
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 i...
Page 21 - Speaker Properties; pages. These gain settings compensate for driver; Bypass; button back to the; NORMAL; position and the Load Fault indicator will light (after
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 i...
Page 22 - Specifications; DataPort Outputs; External Loudspeaker Output
Specifications DCM Inputs, Main Analog, Surround EX Input Stage Type Active balanced Impedance 20k ohms, Differential and Single-ended Maximum Input Level +14.2 dBu (4.0 Vrms) A-to-D Conversion 24-bit delta-sigma 128x oversampled DCM Inputs, Digital (AES/EBU) Input Type Balanced Input Impedance 120 ...
Page 24 - Disclaimer
How to Contact QSC Audio Products Mailing address: QSC Audio Products, Inc. 1675 MacArthur Boulevard Costa Mesa, CA 92626-1468 USA Telephone Numbers: Main Number (714) 754-6175 Sales & Marketing (714) 957-7100 or toll free (USA only) (800) 854-4079 Customer Service (714) 957-7150 or toll free (U...