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LOUD Technologies SR1522z Repair Manual

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SR1522z REPAIR MANUAL

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Summary of Contents for LOUD Technologies SR1522z

  • Page 1 SR1522z REPAIR MANUAL...
  • Page 2: Tools Needed

    These instructions are intended to help restore any ailing SR1522z 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: Carefully begin to remove the grill. The grill has a tendency to want to “pop out,” so please be sure to hold the grill in place with your free hand while removing the screws with the other hand.
  • 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 SR1522z and the led should light up. Congratulations, you just replaced an led PCB assembly...now go...
  • Page 5 Bottom woofer replacement: Follow steps 1-4 of the led PCB replacement instructions, as the grill will need to be removed in order to access screws 1-3 the bottom woofer. screws 4-8 Keep the eight screws and fl at washers in a safe place. Note: There are two different screws that connect the woofer to the cabinet.
  • Page 6 The picture to the right shows what the SR1522z looks like with the grill and bottom woofer removed. Place the new woofer (part #0013913) where the old one was. Follow the same steps as...
  • Page 7 Top woofer replacement: Follow steps 1-4 of the led PCB replacement instructions, as the grill will need to be removed in order to access screws 1-4 the top woofer. screws 5-8 Keep the eight screws and fl at washers in a safe place. Note: There are two different screws that connect the woofer to the cabinet.
  • Page 8 The woofer is approximately 11 pounds with the weight unevenly distributed. Push down This is what the SR1522z looks like with the grill and top woofer removed. Place the new woofer (part #0013913) where the old one was. Follow the same steps The positive (solid blue) and negative as above, but backwards 5 to 1.
  • Page 9 Top woofer replacement continued: The grill support (located just above screws 7 and 8 and outlined below) does not need to be taken off in order grill support to remove and replace the top woofer. screw locations However, it would certainly make the repair slightly more manageable.
  • Page 10 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. Carefully begin to remove the entire horn assembly (with the high frequency driver still attached).
  • Page 11 High Frequency Driver replacement continued: Push down The positive (solid blue) and negative (blue and black) cables are still attached to the high frequency driver terminals. Remove the cables from their terminals simply by pushing down on the terminal and pulling out the cable. This is what it looks like with the grill and horn removed.
  • Page 12 High Frequency Driver replacement continued: headless screw locking washer fl at washer Keep the four nuts, four locking washers, and four fl at washers in a safe place. Four nuts and eight washers may be removed from the driver using the 8mm open end wrench.
  • Page 13 (part #0008093) where the old one was. Follow the same steps as above, but backwards 10 to 1. Power up the SR1522z and the new driver should now be pumping out those highs again. Fantastic, you just replaced a high...
  • Page 14: Diaphragm Replacement

    Diaphragm replacement: At the present time (December 2006), diaphragms are not currently available, so you will have to replace the complete driver following the previous section (pages 10-13). 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 15 (part # coming soon) where the old one was. Follow the same steps as above, but backwards 6 to 1. Power up the SR1522z and the new diaphragm should now be pumping out those highs again. Sweet, you just...
  • Page 16 Amplifi er Assembly replacement: Keep the fourteen screws in a safe place. The covers may be worked loose by Fourteen screws need to be removed wedging a fl at head screwdriver in from the amplifi er assembly using the between the cabinet and the cover, as phillips head screwdriver.
  • Page 17 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): (1) led PCB cable, (2) blue and black, (3) solid blue, (4) solid black, and (5) solid yellow.
  • Page 18 Amplifi er assembly replacement continued: Edge of amplifi er assembly Edge of amplifi er assembly Edge of amplifi er assembly Edge of amplifi er assembly Closeups of the led PCB cable and connector are shown above. The black wire of the cable is closest to the edge of the amplifi...
  • Page 19 (as shown in picture above) and place on the new amplifi er assembly. Power up the SR1522z and relish in the fact that you just replaced an amplifi er assembly. Hats off to you for...