User manual QSC AUDIO POWERLIGHT 3.4 REV E

[. . . ] 10- Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit the apparatus. 12- Use only with carts, stands, tripods, brackets, interconnecting cables, or software specified by QSC Audio Products. When moving or transporting using a cart, use caution to avoid injury from tip-over. 13- Unplug the apparatus during lightning storms or when unused for long periods of time. [. . . ] Combo input jack accepts both XLR and TRS (1/4-inch) plugs. 12 CONNECTIONS- Inputs: XLR, TRS (1/4-inch), and Terminal-block Pinouts Balanced XLR Jumper Unbalanced pin 2 pin 3 pin 1 pin 2 pins 1 and 3 TRS (1/4-inch) phone plug (tip-sleeve) Terminal-block Connectors shield shield jumper from "­" to shield 13 CONNECTIONS- DataPort (QSControl users only) What is a DataPort?The DataPort is a QSC-specific connection used for interfacing amplifiers, amplifier monitoring devices and signal processors. It is typically used in larger-sized installations where amplifiers may be located far away from system operators. The DataPort interconnects provide audio inputs to the amplifiers and amplifier operating data (temperatures, power status, audio power level, etc. . . . ) to other QSC equipment, such as the CM16a Amplifier Network Monitor. Managing all this information and the operation of the amplifiers is QSC's QSControl software running on a PC. QSControl primarily handles amplifier tasks, while another QSC program, Signal Manager, handles Processor configuration. If you are not using the PL6. 0 II with QSControl, QSC DSP-3, QSC DSP-4 or other QSC DataPort accessory, do not use the DataPort. DataPort Cables Use only QSC Audio DataPort Cables for DataPort connections. Premium DataPort cables (made to order with hand-wired termination) provide individually shielded audio pairs for the best possible audio performance. Either type of QSC DataPort cable is available from QSC's Technical Services Group. Computer VGA cables are similar, but can degrade your audio quality; we do not recommend their use. Do not use the Speakons if operating in Bridge mode; use the Binding Posts. Each Speakon is wired only to its own respective channel (no biamp output on CH1 like lower power amplifiers). Do not use 2-ohm loads connected with Speakons!Use Binding Post connections for 2-ohm loads! 18 USE- AC Power Switch and LED Indicators AC Power Switch On the left side of the front panel is the Power switch. The switch is labeled ON, above it and to the right. To turn the power on: Press in on the upper portion of the rocker switch. The amplifier will go through its power-up cycle; the red-colored Protect LEDs will illuminate briefly, then the green-colored Power LEDs will remain on. To turn the power off: Press in on the bottom portion of the rocker switch. This is normal. LED Indicators for Power Status To the right of the Power switch are six LEDs indicating the Power Status of the amplifier. The left column of LEDs is for channel 1 and the right column for channel 2. POWER- green LED indicating the amplifier is turned on and connected to a properly functioning AC source. STANDBY- yellow LED, illuminates when the amplifier is put into Standby mode by DataPort or Power Supply Remote Control connector. PROTECT- red LED, illuminates when the amplifier goes into protective muting. This could be caused by shorted wiring or speakers, overheating, or amplifier failure. [. . . ] The power supply in the PL6. 0 II operates at 90 kilohertz (90, 000 cycles per second). By raising the operating frequency of the power supply, the power transformer and other magnetic devices can be greatly reduced in size and weight. This minimizes the possibility of magnetic noise coupling between devices or into cables. Also gone is the infamous "hmmmmmm" of the idling analog power supply. [. . . ]