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1- Power switch
2- Monitor output loudspeaker
3- Power “on” and diagnostics indicator LEDs
4- Monitor source selector buttons

5- Amplifier/Processor selector button
6- Monitor output test points
7- Bypass switch and indicator LED
8- Monitor volume control

9.

 Alternate EQ Select- Connecting this terminal to ground with an external switch or relay contact enables an alternate setting of each channel’s para-

metric equalization. The alternate settings are made at the time of installation by using the DCM software. This allows for an alternate equalization to 
be quickly enabled during alternative content or advertising playback. Many “non-feature” film soundtracks are not recorded to X-Curve standards and 
often sound bright or harsh when played back in a theatre calibrated for feature film playback. The front panel ALT EQ indicator LED illuminates when the 
alternate equalization has been enabled.

10.

 External Monitor Loudspeaker- On the rear panel are a set of screw terminals marked 

EXTERNAL SPKR

. These are for connection to an external 

monitor loudspeaker. As shipped from the factory, a jumper between the

 IN SPR

 and the

 EXTERNAL SPKR

 

+

 terminal routes audio to the DCM’s inter-

nal monitor loudspeaker. This jumper must be removed if an external monitor loudspeaker is used, otherwise the DCM’s internal monitor amplifier will 
be overloaded. The minimum load impedance of the external monitor loudspeaker must be 4 ohms or greater.

11. 

Bass Management- Bass management allows extremely low frequency program content to be filtered from the screen channels and rerouted for 

mixing with the subwoofer output. This can reduce the amplification and loudspeaker requirements for all screen channels while minimally increasing 
subwoofer capability requirements. 
      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

Summary of Contents for 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: ...or moisture does not operate normally or has been dropped 15 When installing equipment into a rack distribute the units evenly Otherwise hazardous conditions may be created by an uneven weight distri...

Page 3: ...circuit different from that to which the receiver is connected Consult the dealer or an experienced radio or TV technician for help THIS PRODUCT IS INTENDED FOR CONNECTION TO A TN OR IT POWER SYSTEM S...

Page 4: ...ng Control In addition to the monitoring of your amplifier s audio I O your DCM includes QSC s exclusive Load Fault detection feature The DCM monitors for possible loudspeaker system or wiring faults...

Page 5: ...he signal from analog to digital and back again which is designed to minimize all background noise and react to the dynamic range of any film track 4 Loudspeaker Database pre programmed settings QSC h...

Page 6: ...Monitor Loudspeaker On the rear panel are a set of screw terminals marked EXTERNAL SPKR These are for connection to an external monitor loudspeaker As shipped from the factory a jumper between the IN...

Page 7: ...4 Subwoofer output 5 Alternate equalization select input 6 Auxiliary audio input 7 Hearing impaired output 8 Emergency bypass level controls and switch 9 Main analog input from cinema processor 10 Ana...

Page 8: ...ermines the function of the Monitoring Select but tons to the right of the AMPS PROC button The LEDs directly over the AMPS PROC button indicate what selected function the Monitor Select buttons will...

Page 9: ...t on all amplifier outputs To sense real world conditions these measurements must be found to be out of range several times before the Load Fault condition is indicated on the front panel If you are s...

Page 10: ...io power INPUT SELECT Switch Use this switch to select the input source of the DCM In the ANALOG position input is from the MAIN ANALOG INPUT and the SURROUND EX INPUT if this option is installed If t...

Page 11: ...nal to the EXTERNAL SPKR terminal SUB OUT provides the identical audio as the subwoofer DataPort This connection cannot be monitored or include any of the Fault Analysis functions because there are no...

Page 12: ...chassis and rack can be damaged if the DCM is not properly supported Unless the DCM is being installed in its final fixed location QSC strongly recommends supporting the rear of the unit Rear rack ear...

Page 13: ...ettings to the DCM hardware s flash memory and the DCM hardware can be disconnected from the host PC NOTE QSC updates these files regularly as new models are introduced from loudspeaker manufacturers...

Page 14: ...operating voltage information printed on it Locate the sticker note the rated voltage and ensure the AC circuit you intend to use is properly rated Locate the IEC style AC power cord supplied with yo...

Page 15: ...Ch 1 and Subcode 1 4 I MON Ch 1 and Subcode 2 5 Clip Protect Ch 1 6 Hard Ground 7 Ch 1 Plus Signal 8 Ch 2 Plus Signal 9 15V from Amplifier 10 Data Reference Ground 11 Ch 2 Minus Signal 12 Amplifier I...

Page 16: ...Description 1 not used 2 not used 3 Back Surround Left 4 not used 5 not used 6 Back Surround Right 7 Ground Digital Inputs 8 not used 9 Right Extra 10 Surround Left 11 Surround Right 12 not used 13 no...

Page 17: ...T 22 AES4 Bsl Bsr OUT 23 AES2 C SW OUT 24 AES2 C SW OUT 25 Chassis Ground Hearing Impaired The Hearing Impaired output signal is available on the screw terminal connector on the rear of the DCM The ou...

Page 18: ...oise pick up than unbalanced connections External Speaker Connection The monitor signal is available on the screw terminals at the rear of the DCM This pow ered signal can be connected directly to an...

Page 19: ...to the sound while in the Bypass position While in the bypassed position adjust the potentiometers to most closely match the normal position sound 3 Monitoring audio mix adjustments The DCM Manager s...

Page 20: ...audible but all attempts to get it louder fail connect the DCM to a PC running DCM Manager software and check the Monitor Attenuation Levels settings on the Monitor Setting page These settings have a...

Page 21: ...f switching the BYPASS to EMERGENCY does not restore sound to the center channel Verify the DCM is receiving input signals from the Cinema Processor Verify connections from the Cinema Processor to the...

Page 22: ...0 01 Analog in 0 008 Digital in 20 Hz to 20 kHz all filters flat Frequency Response 20 Hz to 20 kHz D to A Conversion 24 bit delta sigma 128x oversampled Filter Topology 24 bit digital IIR Crossover...

Page 23: ...Dimensions 19 wide x 5 25 high x 15 deep Weight 16 5 lbs 7 2 kg Line Voltage 100 VAC 240 VAC 50 60 Hz Safety Agency Approvals UL 60950 1 CSA RoHS WEE IEC 60950 1 EMC Approvals FCC Class B Connectors...

Page 24: ...ions via pre paid transportation with a copy of proof of purchase i e sales receipt This warranty provides that the examination of the return product must indicate in our judgment a manufacturing defe...

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