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  7

 

Place the new amplifi er assembly 

(part #0013838-00) where the old one 

was. Follow the same steps as above, 

but backwards 6 to 1. Remove the 

serial number from the faulty amplifi er 

assembly (as shown in picture above) 

and place on the new amplifi er 

assembly. Power up the SA1521z and 

relish in the fact that you just replaced 

an amplifi er assembly. Hats off to you for 

a job well done! 

  6

 

This is what it looks like with the cables 

removed from the amplifi er assembly: 

(1) led PCB cable, (2) solid blue, (3) blue 

and black, (4) yellow and black, and 

   

(5) solid yellow. Make sure the cables are 

reconnected to the same terminals they 

were removed from (but on the new 

amplifi er assembly). See steps 6a and 6b 

below for closeups of the photograph 

above.

Amplifi er assembly replacement continued:

6a

 

A closeup of the led PCB cable 

connector is shown above. The black 

wire of the cable is closest to the edge of 

the amplifi er assembly. The cable only fi ts 

in one way. 

  8

 

Important:

 The faulty amplifi er 

assembly 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.

1

2

3

4

5

6a

6b

6b

 

Now for the closeups of the woofer and 

high frequency driver terminals.

1

5 4 3 2

Summary of Contents for SA1521Z

Page 1: ...1 SA1521z REPAIR MANUAL...

Page 2: ...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 Led PCB Assembly Part 0007334 pag...

Page 3: ...grill as the cable is still firmly attached to the led PCB assembly 2 Keep the six screws in a safe place 4 Carefully remove the cable attached to the led PCB assembly 1 Three screws need to be remove...

Page 4: ...sy 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 SA1521z and the led should light up Congratulations you just repla...

Page 5: ...rom the woofer using the 4mm allen wrench 3 Keep the eight screws and flat washers in a safe place 4 Carefully begin to remove the woofer This woofer has a tendency to want to pop out so please be sur...

Page 6: ...the new woofer part 0013918 where the old one was 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 SA1521z and the...

Page 7: ...river 2 Eight screws and washers need to be removed from the horn using the phillips head screwdriver 3 Keep the eight screws and flat washers in a safe place Note There are two different screws that...

Page 8: ...iver may help in horn removal if it is sticking to the cabinet Caution The horn weighs about 5 pounds and the weight is not evenly distributed 6 Four nuts and eight washers may be removed from the dri...

Page 9: ...four headless screws in a safe place as well 10 This is a straight down shot of the horn assembly There are two somewhat oval shaped indents next to where the terminal markings are as shown above Thi...

Page 10: ...as Follow the same steps as above but backwards 4 to 1 Power up the SA1521z and the new diaphragm should now be pumping out those highs again Sweet you just replaced a diaphragm Diaphragm replacement...

Page 11: ...s capped by two cover plates part 33901380 outlined above 3 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...

Page 12: ...eady to be separated from the cabinet Do not completely take the amplifier assembly off yet as five cables need to be removed first as shown above 1 led PCB cable 2 solid blue 3 blue and black 4 yello...

Page 13: ...emoved from but on the new amplifier assembly See steps 6a and 6b below for closeups of the photograph above Amplifier assembly replacement continued 6a A closeup of the led PCB cable connector is sho...

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