User manual MACKIE SA 1232Z REPAIR MANUAL

[. . . ] Do not fully remove the grill as the cable is still firmly attached to the led PCB assembly. A flat head screwdriver may aid in loosening the grill from the cabinet. 1 Five screws need to be removed from each side of the grill using the phillips head screwdriver (ten screws in all). 4 Carefully remove the cable attached to the led PCB assembly. 2 5 Keep the ten screws in a safe place. Use the phillips head screwdriver to remove one screw near the center of the led PCB assembly. 4 Led PCB replacement continued: 6 7 Carefully remove the led PCB assembly from the back side of the grill. The hard part is done, the rest is easy!Place the new led PCB assembly (part #0007334) where the old one was. [. . . ] Caution: The woofer is approximately 14 pounds with the weight unevenly distributed. 8 Top woofer replacement continued: Push down 5 6 The positive (solid yellow) and negative (solid black) cables are still attached to the woofer terminals. Remove the cables from their terminals simply by pushing down on the terminal and pulling out the cable. The picture on the right shows what the SA1232z looks like with the grill and top woofer removed. Place the new woofer (part #0013920) where the old one was. Follow the same steps as above, but backwards 5 to 1. Power up the SA1232z and the new woofer should now be pumping out glorious lows. Awesome, you just replaced a 12" woofer! + - 9 High Frequency Driver replacement: 1 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. 2 Fourteen screws and washers need to be removed from the horn assembly using the phillips head screwdriver. screws 1-5 9 1 10 11 2 screws 6-14 8 12 7 13 6 3 4 5 14 3 Keep the fourteen screws and flat washers in a safe place. Note: There are two different screws that connect the horn assembly to the cabinet. 10 High Frequency Driver replacement continued: High Frequency Driver Push down 5 4 Carefully begin to remove the entire horn assembly (with the high and mid frequency drivers still attached). A flat head screwdriver may aid in loosening the horn assembly from the cabinet if it is sticking. Caution: The horn weighs about 10 pounds, and the weight is not evenly distributed. 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. 6 The positive (solid green) and negative (green and black) cables are still attached to the mid frequency driver terminals. Remove the cables from their terminals simply by pushing down on the terminal and pulling out the cable. + - Push down Mid Frequency Driver + 11 High Frequency Driver replacement continued: 1 +2 - 4 3 1 2 4 8 7 This is what it looks like with the grill and horn removed. See right side for further instructions and additional pictures on how to remove and replace the high frequency driver. Four screws and locking washers may be removed from the high frequency driver using the phillips head screwdriver. Notice the placement of the terminals, as well. + - 3 12 High Frequency Driver replacement continued: 1 4 2 3 9 Keep the four screws and locking washers in a safe place. 10 The high frequency driver should easily lift right off of the horn assembly. Holding down the horn assembly with one hand while lifting up on the driver with the other hand may help. 11 Turning the high frequency driver over reveals the cover plate which needs to be removed using the phillips head screwdriver. Replace with the new driver (part #0013925) and follow the same steps as above, but backwards 11 to 1. Power up the SA1232z and the new driver should now be pumping out those highs again. Fantastic, you just replaced a high frequency driver! 13 Diaphragm replacement: 1 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 9-12). If you have received a diaphragm, please follow the steps below. Follow steps 1-6 of the high frequency driver replacement instructions, as the horn assembly will need to be removed in order to access the diaphragm. 2 4 3 3 A closeup of the high frequency driver is shown above. Four screws need to be removed from the driver using the 3mm allen wrench. + 4 2 Keep the four screws in a safe place. 1 - 5 The diaphragm and plate adapter are easily removed from the horn assembly. They may not be broken down any further. [. . . ] The amplifier assembly is capped by two cover plates outlined above. The covers may be worked loose by wedging a flat head screwdriver in between the cabinet and the cover, as well as the amplifier assembly and cover. Make sure to get around the entire cover plate in order to be able to remove them. 17 Amplifier assembly replacement continued: 1 1 2 34 5 6 7 5 The amplifier assembly is now ready to be separated from the cabinet. Do not completely take the amplifier assembly off yet, as seven cables need to be removed first (as shown above): (1) led PCB cable, (2) solid yellow, (3) solid black, (4) blue and black, (5) solid blue, (6) green and black, and (7) solid green. Do not force cable removal or connection, although needle-nose pliers may aid in loosening the crimped cables. [. . . ]