These instructions are intended to help restore any ailing SWA1801 Active Subwoofer back to factory working conditions. They show how to remove and replace the woofer and amp assembly. Please contact Mackie Tech Support (1-800-898-3211) to receive a Service Request Number and Order Number for parts needed for this restoration. They will also help you determine the nature of the problem and what parts will repair the unit.
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Led PCB replacement: Carefully begin to remove the front panel. The wave guides are a great place to grip for stability and support. Do not fully remove front panel as the cable is still attached to the led PCB assembly. Twenty screws need to be removed from the front panel using the phillips head screwdriver.
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Place new led PCB assembly (part #0007334) where the old one was. Follow the same steps as above, but backwards 6 to 1. Power up the SWA1801 and led should light up. Congratulations, you just replaced an led PCB assembly...now go...
5mm allen wrench. Positive (solid yellow) and negative (yellow and black) cables are still attached to woofer terminals. Keep the eight screws in a safe place. These two pictures were taken during an SWA1501 woofer repair. Same principle applies to the SWA1801.
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Follow the same steps as above, but backwards 6 to 1, making sure to keep the led PCB assembly cable in front of woofer. Power up the SWA1801 and the new woofer should now be pumping out glorious lows. Awesome,...
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Amp Assembly replacement: Four screws need to be removed from the amp assembly using a 5mm allen wrench. The screws are located at the top and bottom of the SWA1801 (see following pictures and further instructions). Last remaining two screws located on the bottom of the SWA1801.
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6 to 1. Remove the serial number from the faulty amp assembly (as shown in picture above) and place on the new amp assembly. Power up the SWA1801 and relish in the fact that you just replaced an amp assembly. Hats off to...
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