User manual ROTEL RB-1072

[. . . ] WARNING: There are no user serviceable parts inside. refer all servicing to qualified service personnel. WARNING: To reduce the risk of fire or electric shock, be sure that the apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on the apparatus. Do not allow foreign objects to get into the enclosure. [. . . ] There should be 10 cm (4 inches) of clearance around the chassis, and reasonable airflow through the installation location, to prevent the amplifier from overheating. Likewise, remember the weight of the amplifier when you select an installation location. Make sure that the shelf or cabinet can support its weight. The RB-1072 is supplied with the proper AC power cord. Use only this cord or an exact equivalent. A heavy duty multi-tap power outlet strip may be used, but only if it is rated to handle the current demand of the RB-1072. Be sure the Power Switch on the front panel of the RB-1072 is turned off. Then, plug one end of the cord into the AC power connector 8 on the back panel of the amplifier. Plug the other end into an appropriate AC outlet. Your RB-1072 is configured at the factory for the proper AC line voltage in the country where you purchased it (USA: 120 volts/60 Hz, Europe: 230 volts/50 Hz). The AC line configuration is noted on a label on the back panel. NOTE: Should you move your RB-1072 to another country, it is possible to configure your amplifier for use on a different line voltage. Do not attempt to perform this conversion yourself. Opening the enclosure of the RB-1072 exposes you to dangerous voltages. Consult a qualified technician or the Rotel factory service department for information. If you are going to be away from home for an extended period of time, it is a sensible precaution to unplug your amplifier. Turning the switch OFF cuts power to the amplifier, regardless of whether or not a trigger signal is present. See Figure 2 The RB-1072 has standard unbalanced RCAtype input connectors, the type used on nearly all audio equipment. There is an RCA input for each of the two amplifier channels. These RCA inputs accept audio signals from preamplifiers or surround sound processors. To use this feature the adjacent switch 6 must be set in the 12V TRIG position (see previous section). This input accepts any control signal (AC or DC) ranging from 3 volts to 30 volts. [. . . ] All wire is marked so you can identify the two conductors. there may be ribs or a stripe on the insulation of one conductor. The wire may have clear insulation with different color conductors (copper and silver). The RB-1072 has two sets of color coded terminals for each amplifier channel. [. . . ]