User manual QSC AUDIO DCM 10

[. . . ] 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. 8- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9- Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one blade wider than the other. [. . . ] Firmware Update Mode Select: This recessed push button switch is located directly left of the USB port. To place the DCM in firmware update mode, press inward and hold the switch in the depressed position while turning the AC POWER switch on. Use a small tool, such as the end of a paperclip wire or similar object to depress the switch. The AC power must be off before initiating this sequence. Release the switch once the AC power has been applied. The DCM Manger software may then be used to continue the update procedure (refer to the software help file for details). Hardware Description (continued) 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). Bypass Crossover Level Adjustment Potentiometers: These are used to adjust the characteristic of the Bypass crossover. The frequency-specific levels of the crossover outputs from the DCM to the center channel amplifiers can be adjusted to suit the center channel loudspeakers. This signal path is only active if the front panel bypass switch is in the BYPASS position. DCM 10/10D DCM 30/30D DCM 10/10D DCM 30/30D Barrier Strip Screw Terminals: The barrier strip screw terminals provide connections for output to an external monitor loudspeaker, subwoofer, alternate equalization switching, auxiliary input, and hearing impaired audio output. EXTERNAL SPKR: These terminals provide the identical audio supplied to the front panel's monitor loudspeaker. The 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 ears, required hardware, and a separate instruction sheet are available from QSC's Technical Services Group (part number FG-000031-00). Attaching Rear Rack Ears: Method 1 The DCM is first installed from the front of the rack and secured to the front rack rails. The rear ears are then secured to the DCM using two machine screws. The ears are secured to the rails using regular rack hardware. Method 2 The DCM is first installed from the front of the rack and secured to the front rack rails. Temporarily secure the rear ears to the rear rack rails and select the appropriate mounting position for the "pin". Remove the rear ears and install the locator pins securely. Use of thread-locking is recommended for high-vibration installations. 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. [. . . ] -Amplifier input sensitivity adjustment: Refer to amplifier owner's manual. If 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 DCM. [. . . ]