User manual JBL L250

[. . . ] The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles and the point where they exit from the apparatus. Only use attachments/accessories specified by the manufacturer. [. . . ] 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. Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition. The product should be mounted to a wall or ceiling only as recommended by the manufacturer. Figure A. Example of Antenna Grounding as per National Electrical Code ANSI/NFPA 70 2 SPEAKER PLACEMENT FRONT SPEAKERS CENTER CHANNEL SPEAKER 0­2 ft 0­0. 6m SUBWOOFER SURROUND SPEAKERS Single surround back speaker may be used with 6. 1 receivers and processors. Alternate placement for surround speakers when only 5. 1 channels are used; required placement for surround back speakers in 7. 1-channel systems. The front speakers should be placed the same distance from each other as they are from the listening position. They should be placed at about the same height from the floor as the listeners' ears will be, or they may be angled toward the listeners. The center channel speaker should be placed slightly behind the front left and right speakers, and no more than 2 feet (0. 6m) above or below the tweeters of the left and right speakers. It is often convenient to set the center speaker on top of the television set, as shown in the drawing. The JBL Cinema Sound speaker system may be used in 5. 1-, 6. 1- or 7. 1-channel applications. To use banana-type connectors requires the removal of the inserts. 4 DOLBY® DIGITAL OR DTS® (OR OTHER DIGITAL SURROUND MODE) CONNECTION RECEIVER SUBWOOFER L R LFE OUT LINE LFE LEVEL IN Use this installation method for Dolby Digital, DTS or other digital surround processors: Use the line-level input jack marked "LFE" for the Low- Frequency Effects channel. Connect this jack to the LFE output or subwoofer output on your receiver or amplifier. Connect each speaker to the corresponding speaker terminals on your receiver or amplifier. Make sure that you have configured your surround sound processor for "Subwoofer On. " Also configure your receiver for 5. 1-, 6. 1or 7. 1-channel operation as appropriate. The front left, front right, center and rear speakers should all be set to "Small. " If your receiver allows you to set the crossover frequency between the subwoofer and the main speakers, select 100Hz or the setting that is the closest frequency below it. DOLBY PRO LOGIC® (NON-DIGITAL) ­ LINE LEVEL Use this installation method for Dolby Pro Logic applications (not Dolby Digital, DTS or other digital processing), where the receiver/processor is equipped with a subwoofer output, or a volumecontrolled preamp (line-) level output: Left Front ­ + Center ­ + Use RCA-type interconnects to connect the line-level subwoofer outputs on your receiver or amplifier to the line-level inputs on the subwoofer. IMPORTANT: Do not use the LFE input on the subwoofer with Dolby Pro Logic processors. Right Front ­ + Subwoofer Line Level In L R NOTE: If your receiver or amplifier has only one subwoofer output jack, then you will need to use a Y-connector (not included). Plug the male end of the Y-connector into your receiver or amplifier's subwoofer output jack, and connect each of the two female ends to separate RCA-type interconnects. Finally, plug the RCA-type interconnects into the linelevel inputs on the subwoofer. Connect each speaker to the corresponding speaker terminals on your receiver or amplifier. Left Front Receiver Subwoofer Out Right Front R ­ L + ­ + Right Surround ­ Left Surround + Make sure your receiver or processor is correctly configured to indicate that the subwoofer is "On. " ­ + Center Surround Back Surround Back Right Left ­ + ­ + ­ + Left Surround ­ + Surround Back Left ­ + Surround Back Right ­ + Right Surround ­ + 5 SUBWOOFER OPERATION Press the Master Power switch (marked "Power" å) to the On position to use the subwoofer. The CSS10 subwoofer will automatically turn on or go into standby (sleep) mode as described below. When your receiver or amplifier is off, or is not sending program material to the subwoofer, the subwoofer will be in standby mode (the LED on the front of the CSS10 will be red). [. . . ] · Review proper operation of your receiver/amplifier and its surround sound features. · Make sure the movie or TV show you are watching is recorded in a surround sound mode. If it is not, check to see whether your receiver/processor has other surround modes you may use. · In Dolby Digital or DTS modes, make sure your receiver/processor is configured so that the surround speakers are enabled. [. . . ]