Mackie_SWA2801z_Repair_Manual电路图.pdf

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1、1 SWA2801z REPAIR MANUAL RadioFans.CN 收音机爱 好者资料库 2 These instructions are intended to help restore any ailing SWA2801z Active Subwoofer 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)

2、 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. Tools needed: *NOTE: not all tools listed below will be needed for your repair* Phillips head screwdriver. 4mm

3、 and 5mm allen wrench. Solid workbench. Non-carpeted work area due to static electricity. If available, an ESD mat (Electro-static discharge) is optimal. Parts needed: *NOTE: not all parts listed below will be needed for your repair* 18” Woofer (#1) Part #0010141 pages 3-4 18” Woofer (#2) Part #0010

4、141 pages 5-6 Amplifi er Assembly Part #0017683 pages 7-10 Safety Warnings: Make sure that you turn off the unit and disconnect the power cord (and all other cords) before you begin these procedures. Always use safety glasses! Please try NOT to touch any of the pcb circuitry, capacitors, resistors,

5、etc. Take care to read and follow these instructions. It may help to read the instructions prior to the repair to get an idea of what it entails. Before beginning the repair, touch metal to discharge any lingering internal static electricity. RadioFans.CN 收音机爱 好者资料库 3 Woofer #1 replacement: 3 Eight

6、screws need to be removed from the woofer using the 4mm allen wrench. 4 Keep the eight screws in a safe place. 8 1234 5 6 7 9101112 13 14 15 16 1 Sixteen screws need to be removed from the grill using the phillips head screwdriver. Make sure the front of the cabinet is facing upwards and the wheels

7、are facing down. 2 Keep the sixteen screws in a safe place. 8 12 3 4 56 7 RadioFans.CN 收音机爱 好者资料库 4 Woofer #1 replacement continued: 7 This is what it looks like with the grill and woofer removed. Place the new woofer (part #0010141) where the old one was. Follow the same steps as above, but backwar

8、ds 6 to 1. Power up the SWA2801z and the new woofer should now be pumping out glorious lows. Awesome, you just replaced an 18” woofer! 6 The positive (solid blue) and negative (solid black) cables are still attached to the woofer terminals. Remove the cables from their terminals simply by pushing do

9、wn on the terminal and pulling out the cable. The woofer may be removed from the cabinet enclosure by angling it to the side ever so slightly. 5 Carefully begin to remove the woofer. It may be easier to start at the top so the weight remains rested on the bottom until a fi rm grip of the entire woof

10、er can be made. Caution: The woofer is approximately 20 pounds with the weight unevenly distributed. +- Push down 5 Woofer #2 replacement: 1 Sixteen screws need to be removed from the grill using the phillips head screwdriver. Make sure the wheels are facing upwards and the front of the cabinet is f

11、acing down. 2 Keep the sixteen screws in a safe place. 8 1234 5 6 7 910 1112 13 14 15 16 3 Eight screws need to be removed from the woofer using the 4mm allen wrench. 4 Keep the eight screws in a safe place. 8 1 2 3 4 5 6 7 6 Woofer #2 replacement continued: 7 This is what it looks like with the gri

12、ll and woofer removed. Place the new woofer (part #0010141) where the old one was. Follow the same steps as above, but backwards 6 to 1. Power up the SWA2801z and the new woofer should now be pumping out glorious lows. Awesome, you just replaced an 18” woofer! 6 The positive (solid red) and negative

13、 (red and 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 woofer may be removed from the cabinet enclosure by angling it to the side ever so slightly. 5 Carefully begin to remove th

14、e woofer. It may be easier to start at the top so the weight remains rested on the bottom until a fi rm grip of the entire woofer can be made. Caution: The woofer is approximately 20 pounds with the weight unevenly distributed. +- Push down 7 Amplifi er Assembly replacement: 3 The last remaining thr

15、ee screws are located on the right side of the SWA2801z (holding the bottom of the amplifi er assembly to the cabinet). 2 Two screws located on the left side of the SWA2801z patiently awaiting removal. 1 Five screws need to be removed from the SWA2801z amplifi er assembly using the 5mm allen wrench.

16、 Two screws are located on the left side, three on the right. See the following pictures and further instructions. Make sure the wheels are facing upwards and the front of the cabinet is facing down. 4 Keep the fi ve screws in a safe place. Note: There are two different screws that connect the cabin

17、et to the amplifi er assembly (as seen above). 8 Amplifi er assembly replacement continued: 5 It may be easier to remove the amplifi er assembly by gripping a ridge on each side of the assembly using a pair of pliers. Do not completely remove the amplifi er assembly yet, as some cables need to be re

18、moved fi rst. Five cables need to be removed from the amplifi er assembly: (1) led PCB cable, (2) solid blue, (3) solid black, (4) red and black, and (5) solid red. Do not force cable removal or connection, although needle-nose pliers may aid in loosening the crimped cables. Notice their placement i

19、n the following pictures, as well. Caution: The amplifi er assembly is approximately 22 pounds, so please make sure to grasp it fi rmly. Side view Bottom view 4 5 1 2 3 4 5 1 2 3 5a Closeups of the led PCB cable and connector are shown above. The white wire of the cable is closest to the edge of the

20、 amplifi er assembly. The cable only fi ts in one way. 1 Edge of amplifi er assembly 1 Edge of amplifi er assembly 9 Amplifi er assembly replacement continued: 5b Closeups of one of the woofers cables and connectors are shown above. Make sure the cables are reconnected to the same terminals they wer

21、e removed from (but on the new amplifi er assembly). Once again, they are: (2) solid blue and (3) solid black. Do not force cable removal or connection, although needle-nose pliers may aid in loosening the crimped cables. 2 3 2 3 45 4 5 5c Closeups of the other woofers cables and connectors are show

22、n above. Make sure the cables are reconnected to the same terminals they were removed from (but on the new amplifi er assembly). Once again, they are: (4) red and black and (5) solid red. Do not force cable removal or connection, although needle-nose pliers may aid in loosening the crimped cables. 1

23、0 6 Place the new amplifi er assembly (part #0017683) where the old one was. Follow the same steps as above, but backwards 5 to 1. Power up the SWA2801z and relish in the fact that you just replaced an amplifi er assembly. Hats off to you for a job well done! 7 Important: The faulty amplifi er assem

24、bly must be returned to LOUD Technologies. The address should be on the return shipping label that was provided with the new amplifi er assembly. If not, the return address is at the top of this page. Also, please write the order number and service request number (ex: 1046256-1203935) in big, black, bold numbers on the outside of the box. This helps expedite the return. Amplifi er assembly replacement continued: