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Table of Contents
Related Manuals for LOUD Technologies SR1521z
Summary of Contents for LOUD Technologies SR1521z
- Page 1 SR1521z REPAIR MANUAL...
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Page 2: Tools Needed
These instructions are intended to help restore any ailing SR1521z Active Loudspeaker back to factory working conditions. They show how to remove and replace the drivers and the amplifi er 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. - Page 3 Led PCB replacement: Three screws need to be removed from each side of the grill using the phillips head screwdriver (six screws in all). Carefully begin to remove the grill. Do not fully remove the grill as the cable is still fi rmly attached to the led PCB assembly.
- Page 4 Place the 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 SR1521z and the led should light up. Congratulations, you just replaced an led PCB assembly...now go...
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Page 5: Woofer Replacement
Woofer replacement: Follow steps 1-4 of the led PCB replacement instructions, as the grill will need to be removed in order to access the woofer. Keep the eight screws and washers in a safe place. Eight screws need to be removed from the woofer using the 4mm allen wrench. - Page 6 Follow the same steps as above, but backwards 6 to 1, making sure to keep the led PCB assembly cable in front of the woofer. Power up the SR1521z and the new woofer should now be pumping out glorious lows. Awesome, you just replaced a 15”...
- Page 7 High Frequency Driver replacement: Follow steps 1-4 of the led PCB replacement instructions, as the grill will need to be removed in order to access the high frequency driver. Keep the four screws and fl at washers in a safe place. Four screws need to be removed from the horn using the 5mm allen wrench.
- Page 8 High Frequency Driver replacement continued: Push down Keep the four nuts, four fl at washers, and four locking washers in a safe place. The positive (solid blue) and negative (blue and black) cables are still attached to the high frequency driver terminals.
- Page 9 Keep the four headless screws in a safe place. Follow the same steps as above, but backwards 9 to 1. Power up the SR1521z and the new driver should now be pumping out those highs again. Fantastic, you just replaced a high frequency driver!
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Page 10: Diaphragm Replacement
Diaphragm replacement: At the present time (November 2006), diaphragms are not currently available, so you will have to replace the complete driver following the previous section (pages 7-9). If you have received a diaphragm, please follow the steps below. Follow steps 1-5 of the high frequency driver replacement instructions, as the horn will need to be removed in order to access the diaphragm. - Page 11 7 removed. When replacing the new to 1. Power up the SR1521z and the new diaphragm, be sure to line up the holes diaphragm should now be pumping correctly.
- Page 12 Amplifi er Assembly replacement: Keep the 14 screws in a safe place. Fourteen screws need to be removed from the amplifi er assembly using the phillips head screwdriver. The amplifi er assembly is capped by two cover plates (part #33901380) outlined above. The covers may be worked loose by wedging a fl...
- Page 13 Amplifi er assembly replacement continued: The amplifi er assembly is now ready to be separated from the cabinet. Do not completely take the amplifi er assembly off yet, as fi ve cables need to be removed fi rst (as shown above). Caution: The amplifi...
- Page 14 (as shown in picture above) loosening the crimped cables. and place on the new amplifi er assembly. Power up the SR1521z and relish in the fact that you just replaced an amplifi er assembly. Hats off to you for...