User manual ROTEL RB-970BX

[. . . ] If the unit is exposed to moisture, or a foreign object gets into the enclosure, immediately disconnect the power cord from the wall. Take the unit to a qualified service person for inspection and necessary repairs. Read all the instructions before connecting or operating the component. Keep this manual so you can refer to these safety instructions. [. . . ] The RB-970BX has a highly regulated power supply incorporating a Rotel custom-designed toroidal power transformer. This low impedance power supply has ample power reserves, which enables the RB-970BX to easily reproduce the most demanding audio signals. This type of design is more expensive to manufacture, but it is better for the music. Like all audio components that handle lowlevel signals, the RB-970BX can be affected by its environment. This will minimize the chance it will pick up hum or interference. The RB-970BX generates heat as part of its normal operation. The heat sinks and ventilation openings in the amplifier are designed to dissipate this heat. the ventilation slots in the top cover must be open. 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. Remember the weight of the amplifier when you select an installation location. Make sure that the shelf or cabinet can support it. Turning the switch OFF cuts power to the amplifier, regardless of whether or not a trigger signal is present. To use this feature the toggle switch must be set to the ON position. This input accepts any control signal (AC or DC) ranging from 3 volts to 30 volts. Be sure to keep the power cords, digital signal cables and regular audio signal cables in your installation away from each other. This will minimize the chance of the regular audio signal cables picking up noise or interference from the power cords or digital cables. Using only high quality, shielded cables will also help to prevent noise or interference from degrading the sound quality of your system. If you have any questions see your authorized Rotel dealer for advice about the best cable to use with your system. To turn the amplifier on (or to activate either of the optional automatic power-on modes), push the switch in. The LED indicator above the switch will light, indicating that the amplifier is turned on. To turn the amplifier off, push the button again and return it to the out position. The RB-970BX has conventional RCA type input connectors, the type found on nearly all audio equipment. [. . . ] locate the three jumper pin blocks labeled S 601 , S 602 and S 603. The factory standard (stereo) position of the jumpers is on pins 1 and 2 of each block. There is a * mark on the circuit board next to this position. To convert the RB-970BX to bridged mono move all three jumpers so they are on pins 2 and 3 of each jumper pin block. [. . . ]