User manual MACKIE SWA1801Z

[. . . ] SWA1801z ACTIVE SUBWOOFER SYSTEM USER'S MAnUAl ACTIVE CAUTION AVIS RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL 9. Power Sources -- This Mackie product should be connected to a power supply only of the type described in these operation instructions or as marked on this Mackie product. Power Cord Protection -- Power supply cords should be routed so that they are not likely to be walked upon or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit this Mackie product. Object and Liquid Entry -- Care should be taken so that objects do not fall on, and liquids are not spilled into, this Mackie product. [. . . ] Never remove the ground pin on the power cord of the SWA1801z or any other component. If the thermal switch activates frequently, try turning down the level control a notch or two on the mixing console (or other signal source) or on the subwoofer itself to avoid overheating the amplifiers. If the temperature in the room is too high, it could cause the amplifier to overheat. In this case, you should try aiming a fan at the rear panel to move more air across the heatsink panel. SERVICE INFORMATION If you think your Mackie product has a problem, please check out the following troubleshooting tips and do your best to confirm the problem. Visit the Support section of our website (www. mackie. com/ support) where you will find lots of useful information such as FAQs, documentation, and user forums. You may find the answer to the problem without having to send your Mackie product away. : Troubleshooting No power · Our favorite question: Is it plugged in?Make sure the AC outlet is live (check with a tester or lamp). · Our next favorite question: Is the POWER switch on?· Is the POWER LED on the rear panel glowing green?If not, make sure the AC outlet is live. If so, refer to "No sound" next. · The internal AC line fuse may be blown. If you suspect the AC line fuse is blown, please see the "Repair" section on page 9. THERMAL CONSIDERATIONS The SWA1801z has a powerful 800 watt amplifier built-in. As amplifiers produce heat, it is important to dissipate the heat as quickly as possible. This results in increased reliability and longevity for the amplifier. The amplifier module is mounted on a large heatsink, which is cooled by convection where cool air is drawn through it's fins, carrying the heat away. In order for this convection cooling to work efficiently, it is important to provide adequate airspace behind the loudspeaker. When you position the SWA1801z, we recommend leaving at least six inches of air space behind it. In the unlikely event of the amplifier overheating, a built-in thermal switch will activate, which mutes the signal. When the amplifier has cooled down to a safe operating temperature, the thermal switch resets itself, and the SWA1801z resumes normal operation. 7 No sound · Is the input LEVEL control for the input source or the subwoofer turned all the way down?Verify that all the volume controls in the system are properly adjusted. · Is the signal source working (and making union scale)? [. . . ] IMPORTANT: Make sure that the Service Request Number is plainly written on the shipping carton. LOUD Technologies reserves the right to inspect any products that may be the subject of any warranty claims before repair or replacement is carried out. LOUD Technologies may, at our option, require proof of the original date of purchase in the form of a dated copy of the original dealer's invoice or sales receipt. Final determination of warranty coverage lies solely with LOUD Technologies. [. . . ]