User manual JBL JBL630

[. . . ] The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. 1. Install in accordance with the manufacturer's instructions. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat. Do not defeat the safety purpose of the polarized or grounding-type plug. [. . . ] Carefully remove the horn module from the packaging and place it face down on a soft surface. Locate the cardboard accessory sleeve and remove the hardware. 2 Long 1/4" x 20 Allenhead bolts b. 1 Short 1/4" x 20 Allenhead bolt c. 4 Metal coasters (to protect wood and tile floors from the spike feet) 4. Carefully unpack the lowfrequency enclosure and place it upright. It would be helpful to position it near its final position in the room since it is much easier to move without the additional weight of the horn module. Notice the two threaded inserts on the angled face of the top and also the small L-bracket on the top. These are the attachment points for the horn module. Immediately adjacent to the Lbracket is a recessed connector which will make the electrical connection for the horn module. Although the module can be installed by one person, it is easier if a second set of hands are available. Auto On/Standby With the Power Switch ª in the "on" position, the Power Indicator LED £ will remain backlit in red or green to indicate the On/Standby mode of the subwoofer. RED = STANDBY (No signal detected, Amp Off) GREEN = ON (Signal detected, Amp On) 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 can be left on. You may turn off the Power Switch ª for extended periods of nonoperation, e. g. , when you are away on vacation. If the Auto Switch · is in the "on" position, the subwoofer will remain on. Adjust Level Turn on your entire audio system and start a CD or movie soundtrack at a moderate level. Turn up the Subwoofer Level (Volume) Control ¢ about halfway. 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? [. . . ] When needed, use a soft cloth to remove any fingerprints or dust from the enclosure or grille. NOTE: Do not use any cleaning products or polishes on the cabinet or grille. 10 TROUBLESHOOTING If there is no sound from any of the speakers: If the system plays at low volumes but shuts off as volume is increased: · Check that receiver/amplifier is on and a source is playing. · Check all wires and connections between receiver/ amplifier and speakers. Make sure none of the speaker wires are frayed, cut or punctured. [. . . ]