User manual JBL SDEC1000A

[. . . ] Use only with the cart, stand, tripod, bracket or table specified by the manufacturer or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. 13. Unplug this apparatus during lightning storms or when unused for long periods of time. Refer all servicing to qualified service personnel. [. . . ] Article 810 of the National Electrical Code, ANSI/ NFPA 70, provides information with regard to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna-discharge unit, connection to grounding electrodes, and requirements for the grounding electrode. An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits, or where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching such power lines or circuits, as contact with them might be fatal. 19. Do not overload wall outlets, extension cords, or integral convenience receptacles, as this can result in a risk of fire or electric shock. Never push objects of any kind into this product through openings, as they may touch dangerous voltage points or short-out parts, which could result in a fire or electric shock. Never spill liquid of any kind on the product. The apparatus shall not be exposed to dripping or splashing, and no objects filled with liquids, such as vases, shall be placed on the apparatus. Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel. When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or that have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock or other hazards. RED = STANDBY (No signal detected, Amp Off) GREEN = ON (Signal detected, Amp On) When the Auto Switch § is in the “auto” position, the subwoofer will automatically enter the Standby mode after approximately 10 minutes when no signal is detected from your system. The subwoofer will then power ON instantly when a signal is detected. During periods of normal use, the Power Switch ª may be left on. You may turn off the Power Switch ª for extended periods of non-operation, e. g. , when you are away on vacation. If the Auto Switch § is in the “on” position, the subwoofer will remain on. Adjust Gain Turn your Subwoofer-Level Control ¢ up to the halfway position. If no sound emanates from the subwoofer, check the AC-line cord and input cables. Are the connectors on the cables making proper contact?Is the AC plug connected to a “live” receptacle?Has the Power Switch ª been pressed to the “on” position?Once you have confirmed that the subwoofer is active, proceed by playing a CD, record or cassette. [. . . ] A subwoofer is there to enhance bass, extending the response of the entire system so the bass can be felt as well as heard. However, overall balance must be maintained or the music will not sound natural. An experienced listener will set the volume of the subwoofer so its impact on bass response is always there but never obtrusive. Phase Control The Phase Switch ¶ determines whether the subwoofer speaker’s pistonlike action moves in and out with the main speakers, 0˚, or opposite the main speakers, 180˚. [. . . ]