SA1232z REPAIR MANUAL
1
SA1232z REPAIR MANUAL
2
These instructions are intended to help restore any ailing SA1232z Active
Loudspeaker back to factory working conditions. They show how to remove and
replace the drivers and the amplifier 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. 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.
• 3mm 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***
• Led PCB Assembly
Part #0007334
pages 3-4
• 12” Woofer (Bottom)
Part #0013920
pages 5-6
• 12” Woofer (Top)
Part #0013920
pages 7-8
• High Frequency Driver
Part #0013925
pages 9-12
• Diaphragm
Part #coming soon
page 13
• Mid Frequency Driver
Part #0013897
pages 14-15
• Amplifier Assembly
Part #0013840-00
pages 16-19
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, 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.
3
Led PCB replacement:
1
2
3
Carefully begin to remove the grill. 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.
4
Carefully remove the cable attached to
the led PCB assembly.
5
Use the phillips head screwdriver to
remove one screw near the center of
the led PCB assembly.
Five screws need to be removed from
each side of the grill using the phillips
head screwdriver (ten screws in all).
Keep the ten screws in a safe place.
4
Led PCB replacement continued:
6
Carefully remove the led PCB assembly
from the back side of the grill.
7
The hard part is done, the rest is easy!
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 SA1232z and the led
should light up. Congratulations, you just
replaced an led PCB assembly...now go
play some shows!
5
1
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
the bottom woofer.
screws 1-6
screws 7-8
5
2
Keep the eight screws and flat washers
in a safe place. Note: There are two
different screws that connect the woofer
to the cabinet.
4
Carefully begin to remove the woofer.
A flat head screwdriver may aid in
loosening the woofer by prying between
it and the cabinet. Hold the woofer
in place with one hand while prying
around the edge with your free hand.
Caution: The woofer is approximately
14 pounds with the weight unevenly
distributed.
6
4
7
3
8
2
3
1
Eight screws and washers need to be
removed from the woofer using the
phillips head screwdriver.
6
Bottom woofer replacement continued:
Push down
+
5
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.
6
The picture on the right shows what
the SA1232z looks like with the grill and
bottom woofer removed . Place the
new woofer (part #0013920) where the
old one was. Follow the same steps as
above, but backwards 5 to 1, making
sure to keep the led PCB assembly cable
in front of the woofer. Power up the
SA1232z and the new woofer should now
be pumping out glorious lows. Awesome,
you just replaced a 12” woofer!
7
1
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
the top woofer.
screws 1-6
screws 7-8
1
3
7
4
2
Keep the eight screws and flat washers
in a safe place. Note: There are two
different screws that connect the woofer
to the cabinet.
4
Carefully begin to remove the woofer.
A flat head screwdriver may aid in
loosening the woofer by prying between
it and the cabinet. Hold the woofer
in place with one hand while prying
around the edge with your free hand.
Caution: The woofer is approximately
14 pounds with the weight unevenly
distributed.
2
8
6
3
5
Eight screws and washers need to be
removed from the woofer using the
phillips head screwdriver.
8
Top woofer replacement continued:
Push down
+
5
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.
6
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
10
screws 6-14
11
1
2
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:
Push down
Mid
Frequency
Driver
5
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.
Push down
6
+
4
+
High
Frequency
Driver
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.
11
High Frequency Driver replacement continued:
+2
1
4
1
-
3
2
+
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.
-
4
3
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.
12
High Frequency Driver replacement continued:
1
4
2
3
9
10
Keep the four screws and locking
washers in a safe place.
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. Keep the four screws in a
safe place. 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.
2
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.
4
4
Keep the four screws in a safe place.
5
The diaphragm and plate adapter are
easily removed from the horn assembly.
They may not be broken down any
further. Place the new diaphragm (part
# coming soon) and plate assembly
where the old one was. Follow the same
steps as above, but backwards 5 to
1. Power up the SA1232z and the new
diaphragm should now be pumping
out those highs again. Sweet, you just
replaced a diaphragm!
2
3
+
1
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.
14
Mid Frequency Driver replacement:
Follow steps 1-6 of the high frequency
driver replacement instructions, as the
grill and horn assembly will need to be
removed in order to access the mid
frequency driver.
1
2
8
3
1
4
3
Keep the eight screws and locking
washers in a safe place.
-
6
+-
7
5
2
8
+
1
3
Pull out
4
7
2
+-
6
5
Eight screws and locking washers may
be removed from the mid frequency
driver cover plate using the phillips head
screwdriver.
4
The mid frequency driver cover plate
should easily lift right off of the horn.
Holding down the horn assembly
with one hand while lifting up on the
cover plate with the other hand may
help. The positive (solid green) and
negative (green and black) cables
are still attached to the mid frequency
driver cover plate terminals. Remove
the cables from the terminals simply by
pulling on the end of each cable. Do not
force cable removal, although needlenose pliers may aid in tightly crimped
cables.
15
Mid Frequency Driver replacement continued:
1
+-
4
2
1
-
5
2
+
4
3
6
Keep the four screws and locking
washers in a safe place.
7
The mid frequency driver easily lifts right
off of the horn. Replace with the new
driver (part #0013897) and follow the
same steps as above, but backwards 7
to 1. Power up the SA1232z and the new
driver should now be pumping out those
mids again. Right on, you just replaced a
mid frequency driver!
3
Four screws and locking washers may
be removed from the mid frequency
driver using the phillips head screwdriver.
Contrary to what the picture shows, the
screws are actually about 2 3/4” down
from the top of the horn assembly. Also
note that the screws may be tighter than
usual. Please DO NOT add WD-40 or any
other lubricant to help loosen the screws.
16
Amplifier Assembly replacement:
1
18
3
17
4
16
5
15
6
14
7
13
8
12
9
11
1
2
10
Eighteen screws need to be removed
from the amplifier assembly using the
phillips head screwdriver. The amplifier
assembly is capped by two cover plates
outlined above.
2
Keep the eighteen screws in a safe
place.
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 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
3 4
5
6
7
5
2
4
Once the two cover plates are removed,
two more screws need to be taken out in
order to separate the amplifier assembly
from the cabinet. Keep the two screws in
a safe place.
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.
Caution: The amplifier assembly is
approximately 23 pounds, so please
make sure to grasp it firmly.
18
Amplifier assembly replacement continued:
1
Edge of
amplifier
assembly
2
1
6
Edge of
amplifier
assembly
7
Closeups of the led PCB cable and
connector are shown above. The black
wire of the cable is closest to the ribbon
cable. The cable only fits in one way.
3 4
5 6
7
2 34 5 6 7
Now for the closeups of the woofer and
driver terminals. Make sure the cables
are reconnected to the same terminals
they were removed from (but on the
new amplifier assembly). Once again,
they are: (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.
19
Amplifier assembly replacement continued:
7
Place the new amplifier assembly
(part #0013840-00) where the old one
was. Follow the same steps as above,
but backwards 6 to 1. Remove the
serial number from the faulty amplifier
assembly (as shown in picture above)
and place on the new amplifier
assembly. Power up the SA1232z and
relish in the fact that you just replaced
an amplifier assembly. Hats off to you for
a job well done!
8 Important:
The faulty amplifier
assembly must be returned to LOUD
Technologies. The address should
be on the return shipping label that
was provided with the new amplifier
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.
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